{"id":800,"date":"2017-08-26T00:38:49","date_gmt":"2017-08-26T00:38:49","guid":{"rendered":"https:\/\/vibromera.eu\/?p=800"},"modified":"2025-08-03T03:25:51","modified_gmt":"2025-08-03T03:25:51","slug":"balancing-the-exhaust-fan","status":"publish","type":"post","link":"https:\/\/vibromera.eu\/vi\/example\/balancing-the-exhaust-fan\/","title":{"rendered":"C\u00e2n b\u1eb1ng qu\u1ea1t h\u00fat"},"content":{"rendered":"
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    \n\t\t\t\t\t\t\"Thi\u1ebft\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<\/li>\n\t\t<\/ul>\t\t\t\t
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    1. <\/a><\/li>\n\t\t\t\t\t\t\t\t\t<\/ol>\n\n\t\t\t\t
      \n\t\t\t\t\t\n\t\t\t\t\t\t<\/em>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\n\t\t\t\t
      \n\t\t\t\t\t\n\t\t\t\t\t\t<\/em>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div><\/div><\/div>
      \n\n\n \n \n C\u00e2n b\u1eb1ng qu\u1ea1t h\u00fat c\u00f4ng nghi\u1ec7p: H\u01b0\u1edbng d\u1eabn \u0111\u1ea7y \u0111\u1ee7 t\u1eeb l\u00fd thuy\u1ebft \u0111\u1ebfn th\u1ef1c h\u00e0nh<\/title>\n \n <meta name=\"keywords\" content=\"exhaust balancing, fan balancing, industrial ventilation, vibration analysis, field balancing, Balanset-1A, exhaust fan maintenance\">\n <style>\n\n h1 {\n color: #1e3a8a;\n border-bottom: 3px solid #3b82f6;\n padding-bottom: 10px;\n }\n h2 {\n color: #1e40af;\n border-left: 4px solid #3b82f6;\n padding-left: 15px;\n margin-top: 30px;\n }\n h3 {\n color: #1e40af;\n margin-top: 25px;\n }\n .table-container {\n overflow-x: auto;\n margin: 20px 0;\n }\n table {\n width: 100%;\n border-collapse: collapse;\n margin: 20px 0;\n background-color: white;\n }\n th {\n background-color: #1e40af;\n color: white;\n padding: 12px;\n text-align: left;\n }\n td {\n padding: 10px;\n border: 1px solid #ddd;\n }\n tr:nth-child(even) {\n background-color: #f1f5f9;\n }\n .formula {\n background-color: #eff6ff;\n padding: 15px;\n border-left: 4px solid #3b82f6;\n margin: 15px 0;\n font-family: monospace;\n text-align: center;\n }\n .warning {\n background-color: #fef3c7;\n border: 1px solid #f59e0b;\n padding: 15px;\n margin: 15px 0;\n border-radius: 5px;\n }\n .tip {\n background-color: #dcfce7;\n border: 1px solid #22c55e;\n padding: 15px;\n margin: 15px 0;\n border-radius: 5px;\n }\n ul, ol {\n margin: 15px 0;\n padding-left: 30px;\n }\n .highlight {\n background-color: #dbeafe;\n padding: 2px 4px;\n border-radius: 3px;\n }\n <\/style>\n<\/head>\n<body>\n <div class=\"container\">\n <h1>C\u00e2n b\u1eb1ng qu\u1ea1t h\u00fat c\u00f4ng nghi\u1ec7p: H\u01b0\u1edbng d\u1eabn \u0111\u1ea7y \u0111\u1ee7 t\u1eeb l\u00fd thuy\u1ebft \u0111\u1ebfn th\u1ef1c h\u00e0nh<\/h1>\n\n <h2>Ph\u1ea7n 1: C\u00e1c nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n c\u1ee7a s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng - Hi\u1ec3u "T\u1ea1i sao"<\/h2>\n \n <p>C\u00e2n b\u1eb1ng kh\u1ed1i l\u01b0\u1ee3ng quay l\u00e0 m\u1ed9t trong nh\u1eefng ho\u1ea1t \u0111\u1ed9ng quan tr\u1ecdng trong b\u1ea3o tr\u00ec v\u00e0 s\u1eeda ch\u1eefa thi\u1ebft b\u1ecb c\u00f4ng nghi\u1ec7p, \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi <strong>c\u00e2n b\u1eb1ng kh\u00ed th\u1ea3i<\/strong> \u1ee9ng d\u1ee5ng. \u0110\u1ec3 lo\u1ea1i b\u1ecf hi\u1ec7u qu\u1ea3 v\u00e0 s\u00e1ng su\u1ed1t c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn rung \u0111\u1ed9ng qu\u00e1 m\u1ee9c, c\u1ea7n ph\u1ea3i hi\u1ec3u s\u00e2u s\u1eafc v\u1ec1 c\u00e1c qu\u00e1 tr\u00ecnh v\u1eadt l\u00fd c\u01a1 b\u1ea3n g\u00e2y m\u1ea5t c\u00e2n b\u1eb1ng, c\u00e1c d\u1ea1ng, nguy\u00ean nh\u00e2n v\u00e0 h\u1eadu qu\u1ea3 t\u00e0n ph\u00e1 c\u1ee7a n\u00f3.<\/p>\n\n <h3>1.1. V\u1eadt l\u00fd m\u1ea5t c\u00e2n b\u1eb1ng: Khoa h\u1ecdc v\u1ec1 rung \u0111\u1ed9ng<\/h3>\n \n <p>Trong m\u1ed9t th\u1ebf gi\u1edbi l\u00fd t\u01b0\u1edfng, m\u1ed9t v\u1eadt th\u1ec3 quay nh\u01b0 c\u00e1nh qu\u1ea1t h\u00fat s\u1ebd \u0111\u01b0\u1ee3c c\u00e2n b\u1eb1ng ho\u00e0n h\u1ea3o. V\u1ec1 m\u1eb7t c\u01a1 h\u1ecdc, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 tr\u1ee5c qu\u00e1n t\u00ednh trung t\u00e2m ch\u00ednh c\u1ee7a n\u00f3 ho\u00e0n to\u00e0n tr\u00f9ng kh\u1edbp v\u1edbi tr\u1ee5c quay h\u00ecnh h\u1ecdc. Tuy nhi\u00ean, tr\u00ean th\u1ef1c t\u1ebf, do l\u1ed7i s\u1ea3n xu\u1ea5t v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 v\u1eadn h\u00e0nh, m\u1ed9t t\u00ecnh tr\u1ea1ng g\u1ecdi l\u00e0 m\u1ea5t c\u00e2n b\u1eb1ng x\u1ea3y ra, khi tr\u1ecdng t\u00e2m c\u1ee7a rotor b\u1ecb l\u1ec7ch so v\u1edbi tr\u1ee5c quay c\u1ee7a n\u00f3.<\/p>\n \n <p>Khi m\u1ed9t rotor m\u1ea5t c\u00e2n b\u1eb1ng nh\u01b0 v\u1eady b\u1eaft \u0111\u1ea7u quay, s\u1ef1 b\u00f9 tr\u1eeb kh\u1ed1i l\u01b0\u1ee3ng n\u00e0y t\u1ea1o ra l\u1ef1c ly t\u00e2m. L\u1ef1c n\u00e0y li\u00ean t\u1ee5c thay \u0111\u1ed5i h\u01b0\u1edbng, t\u00e1c \u0111\u1ed9ng vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c quay v\u00e0 truy\u1ec1n qua tr\u1ee5c \u0111\u1ebfn c\u00e1c \u1ed5 tr\u1ee5c, r\u1ed3i \u0111\u1ebfn to\u00e0n b\u1ed9 c\u1ea5u tr\u00fac. L\u1ef1c tu\u1ea7n ho\u00e0n n\u00e0y l\u00e0 nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 c\u1ee7a rung \u0111\u1ed9ng.<\/p>\n \n <div class=\"formula\">\n F = m \u00d7 \u03c9\u00b2 \u00d7 r\n <\/div>\n \n <p>Trong \u0111\u00f3 F l\u00e0 l\u1ef1c ly t\u00e2m, m l\u00e0 \u0111\u1ed9 l\u1edbn kh\u1ed1i l\u01b0\u1ee3ng kh\u00f4ng c\u00e2n b\u1eb1ng, \u03c9 l\u00e0 v\u1eadn t\u1ed1c g\u00f3c v\u00e0 r l\u00e0 kho\u1ea3ng c\u00e1ch t\u1eeb tr\u1ee5c quay \u0111\u1ebfn kh\u1ed1i l\u01b0\u1ee3ng kh\u00f4ng c\u00e2n b\u1eb1ng (\u0111\u1ed9 l\u1ec7ch t\u00e2m).<\/p>\n \n <p>\u0110i\u1ec3m m\u1ea5u ch\u1ed1t c\u1ee7a m\u1ed1i quan h\u1ec7 n\u00e0y l\u00e0 l\u1ef1c qu\u00e1n t\u00ednh t\u0103ng t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi b\u00ecnh ph\u01b0\u01a1ng t\u1ed1c \u0111\u1ed9 quay (\u03c9\u00b2). \u0110i\u1ec1u n\u00e0y c\u00f3 \u00fd ngh\u0129a th\u1ef1c ti\u1ec5n to l\u1edbn \u0111\u1ed1i v\u1edbi <strong>c\u00e2n b\u1eb1ng kh\u00ed th\u1ea3i<\/strong> Quy tr\u00ecnh. V\u00ed d\u1ee5, vi\u1ec7c t\u0103ng g\u1ea5p \u0111\u00f4i t\u1ed1c \u0111\u1ed9 qu\u1ea1t h\u00fat s\u1ebd l\u00e0m t\u0103ng l\u1ef1c rung l\u00ean b\u1ed1n l\u1ea7n. S\u1ef1 t\u0103ng tr\u01b0\u1edfng phi tuy\u1ebfn t\u00ednh n\u00e0y gi\u1ea3i th\u00edch t\u1ea1i sao m\u1ed9t qu\u1ea1t h\u00fat ho\u1ea1t \u0111\u1ed9ng \u1edf m\u1ee9c ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c \u1edf t\u1ed1c \u0111\u1ed9 th\u1ea5p c\u00f3 th\u1ec3 \u0111\u1ea1t m\u1ee9c rung \u0111\u1ed9ng th\u1ea3m kh\u1ed1c khi \u0111\u1ea1t t\u1ed1c \u0111\u1ed9 danh \u0111\u1ecbnh ho\u1eb7c t\u0103ng cao, ch\u1eb3ng h\u1ea1n nh\u01b0 khi \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n b\u1eb1ng b\u1ed9 bi\u1ebfn t\u1ea7n.<\/p>\n\n <h3>1.2. Ph\u00e2n lo\u1ea1i m\u1ea5t c\u00e2n b\u1eb1ng: Ba lo\u1ea1i v\u1ea5n \u0111\u1ec1<\/h3>\n \n <p>S\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng c\u1ee7a r\u00f4to, t\u00f9y thu\u1ed9c v\u00e0o s\u1ef1 s\u1eafp x\u1ebfp t\u01b0\u01a1ng h\u1ed7 c\u1ee7a tr\u1ee5c qu\u00e1n t\u00ednh v\u00e0 tr\u1ee5c quay, \u0111\u01b0\u1ee3c chia th\u00e0nh ba lo\u1ea1i ch\u00ednh:<\/p>\n \n <h4>M\u1ea5t c\u00e2n b\u1eb1ng t\u0129nh (L\u1ef1c\/M\u1ea5t c\u00e2n b\u1eb1ng t\u0129nh)<\/h4>\n\t\t\t<div id=\"attachment_3705\" style=\"width: 760px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2024\/03\/\u0420\u043e\u0442\u0435\u0440_statika-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3705\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2024\/03\/\u0420\u043e\u0442\u0435\u0440_statika-1024x549.jpg\" alt=\"Thi\u1ebft l\u1eadp c\u00e2n b\u1eb1ng rotor v\u1edbi \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n tr\u00ean gi\u00e1 \u0111\u1ee1, c\u1ea3m bi\u1ebfn rung, thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng, m\u00e1y t\u00ednh x\u00e1ch tay c\u00f3 m\u00e0n h\u00ecnh hi\u1ec3n th\u1ecb ph\u1ea7n m\u1ec1m\" width=\"750\" height=\"402\" class=\"size-large wp-image-3705\" \/><\/a><p id=\"caption-attachment-3705\" class=\"wp-caption-text\">Thi\u1ebft l\u1eadp m\u00e1y c\u00e2n b\u1eb1ng r\u00f4to v\u1edbi h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t \u0111i\u1ec1u khi\u1ec3n b\u1eb1ng m\u00e1y t\u00ednh \u0111\u1ec3 \u0111o l\u1ef1c t\u0129nh v\u00e0 l\u1ef1c \u0111\u1ed9ng nh\u1eb1m ph\u00e1t hi\u1ec7n s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng trong c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n quay.<\/p><\/div>\n <p><strong>S\u1ef1 \u0111\u1ecbnh ngh\u0129a:<\/strong> X\u1ea3y ra khi tr\u1ee5c qu\u00e1n t\u00ednh d\u1ecbch chuy\u1ec3n song song v\u1edbi tr\u1ee5c quay. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c h\u00ecnh dung nh\u01b0 c\u00f3 m\u1ed9t "\u0111i\u1ec3m n\u1eb7ng" tr\u00ean rotor.<\/p>\n <p><strong>Ch\u1ea9n \u0111o\u00e1n:<\/strong> Lo\u1ea1i m\u1ea5t c\u00e2n b\u1eb1ng n\u00e0y \u0111\u1eb7c bi\u1ec7t \u1edf ch\u1ed7 n\u00f3 xu\u1ea5t hi\u1ec7n ngay c\u1ea3 khi \u0111\u1ee9ng y\u00ean. N\u1ebfu m\u1ed9t rotor nh\u01b0 v\u1eady \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u00ean c\u00e1c gi\u00e1 \u0111\u1ee1 n\u1eb1m ngang c\u00f3 ma s\u00e1t th\u1ea5p (g\u1ecdi l\u00e0 "c\u1ea1nh dao"), n\u00f3 s\u1ebd lu\u00f4n quay d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a tr\u1ecdng l\u1ef1c v\u00e0 d\u1eebng l\u1ea1i khi \u0111\u1ea7u n\u1eb7ng h\u01b0\u1edbng xu\u1ed1ng d\u01b0\u1edbi.<\/p>\n <p><strong>S\u1eeda l\u1ed7i:<\/strong> Lo\u1ea1i b\u1ecf t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01a1n gi\u1ea3n b\u1eb1ng c\u00e1ch th\u00eam (ho\u1eb7c lo\u1ea1i b\u1ecf) kh\u1ed1i l\u01b0\u1ee3ng hi\u1ec7u ch\u1ec9nh tr\u00ean m\u1ed9t m\u1eb7t ph\u1eb3ng, 180 \u0111\u1ed9 \u0111\u1ed1i di\u1ec7n v\u1edbi \u0111i\u1ec3m n\u1eb7ng \u0111\u00e3 x\u00e1c \u0111\u1ecbnh. M\u1ea5t c\u00e2n b\u1eb1ng t\u0129nh l\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a r\u00f4-t\u01a1 h\u1eb9p, h\u00ecnh \u0111\u0129a v\u1edbi t\u1ef7 l\u1ec7 chi\u1ec1u d\u00e0i tr\u00ean \u0111\u01b0\u1eddng k\u00ednh (L\/D) th\u1ea5p (v\u00ed d\u1ee5: nh\u1ecf h\u01a1n 0,5).<\/p>\n \n <h4>S\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng c\u1ee7a c\u1eb7p \u0111\u00f4i<\/h4>\n\t\t\t\n <p><strong>S\u1ef1 \u0111\u1ecbnh ngh\u0129a:<\/strong> X\u1ea3y ra khi tr\u1ee5c qu\u00e1n t\u00ednh giao v\u1edbi tr\u1ee5c quay t\u1ea1i t\u00e2m kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a r\u00f4-to. V\u1ec1 m\u1eb7t v\u1eadt l\u00fd, \u0111i\u1ec1u n\u00e0y t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi vi\u1ec7c c\u00f3 hai kh\u1ed1i l\u01b0\u1ee3ng kh\u00f4ng c\u00e2n b\u1eb1ng b\u1eb1ng nhau n\u1eb1m tr\u00ean hai m\u1eb7t ph\u1eb3ng kh\u00e1c nhau d\u1ecdc theo chi\u1ec1u d\u00e0i r\u00f4-to v\u00e0 c\u00e1ch nhau 180 \u0111\u1ed9.<\/p>\n <p><strong>Ch\u1ea9n \u0111o\u00e1n:<\/strong> \u1ede v\u1ecb tr\u00ed t\u0129nh, rotor nh\u01b0 v\u1eady \u0111\u01b0\u1ee3c c\u00e2n b\u1eb1ng v\u00e0 kh\u00f4ng c\u00f3 xu h\u01b0\u1edbng chi\u1ebfm b\u1ea5t k\u1ef3 v\u1ecb tr\u00ed c\u1ee5 th\u1ec3 n\u00e0o. Tuy nhi\u00ean, trong qu\u00e1 tr\u00ecnh quay, c\u1eb7p kh\u1ed1i l\u01b0\u1ee3ng n\u00e0y t\u1ea1o ra m\u1ed9t m\u00f4 men "l\u1eafc l\u01b0" ho\u1eb7c "l\u1eafc l\u01b0" c\u00f3 xu h\u01b0\u1edbng l\u00e0m rotor vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c quay, g\u00e2y ra rung \u0111\u1ed9ng m\u1ea1nh t\u1ea1i c\u00e1c gi\u00e1 \u0111\u1ee1.<\/p>\n <p><strong>S\u1eeda l\u1ed7i:<\/strong> C\u1ea7n ph\u1ea3i hi\u1ec7u ch\u1ec9nh \u00edt nh\u1ea5t hai m\u1eb7t ph\u1eb3ng \u0111\u1ec3 b\u00f9 cho th\u1eddi \u0111i\u1ec3m n\u00e0y.<\/p>\n \n <h4>S\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng \u0111\u1ed9ng<\/h4>\n\t\t\t<div id=\"attachment_3695\" style=\"width: 760px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2024\/03\/long-rotor.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3695\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2024\/03\/long-rotor-1024x549.jpg\" alt=\"Thi\u1ebft l\u1eadp c\u00e2n b\u1eb1ng rotor v\u1edbi \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n tr\u00ean gi\u00e1 \u0111\u1ee1 \u1ed5 tr\u1ee5c, c\u1ea3m bi\u1ebfn rung, c\u00e1p v\u00e0 m\u00e0n h\u00ecnh m\u00e1y t\u00ednh x\u00e1ch tay ph\u00e2n t\u00edch Vibromera\" width=\"750\" height=\"402\" class=\"size-large wp-image-3695\" \/><\/a><p id=\"caption-attachment-3695\" class=\"wp-caption-text\">S\u01a1 \u0111\u1ed3 k\u1ef9 thu\u1eadt c\u1ee7a thi\u1ebft b\u1ecb ki\u1ec3m tra r\u00f4to \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n c\u00f3 cu\u1ed9n d\u00e2y b\u1eb1ng \u0111\u1ed3ng g\u1eafn tr\u00ean \u1ed5 tr\u1ee5c ch\u00ednh x\u00e1c, \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi thi\u1ebft b\u1ecb gi\u00e1m s\u00e1t \u0111i\u1ec7n t\u1eed \u0111\u1ec3 \u0111o \u0111\u1ed9ng l\u1ef1c quay.<\/p><\/div>\n \u00a0 \u00a0 \u00a0 \u00a0<p><strong>S\u1ef1 \u0111\u1ecbnh ngh\u0129a:<\/strong> \u0110\u00e2y l\u00e0 tr\u01b0\u1eddng h\u1ee3p ph\u1ed5 bi\u1ebfn nh\u1ea5t v\u00e0 th\u01b0\u1eddng g\u1eb7p nh\u1ea5t trong th\u1ef1c t\u1ebf, trong \u0111\u00f3 tr\u1ee5c qu\u00e1n t\u00ednh kh\u00f4ng song song c\u0169ng kh\u00f4ng c\u1eaft tr\u1ee5c quay m\u00e0 l\u1ec7ch v\u1edbi tr\u1ee5c quay trong kh\u00f4ng gian. M\u1ea5t c\u00e2n b\u1eb1ng \u0111\u1ed9ng lu\u00f4n l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a m\u1ea5t c\u00e2n b\u1eb1ng t\u0129nh v\u00e0 m\u1ea5t c\u00e2n b\u1eb1ng c\u1eb7p.<\/p>\n <p><strong>Ch\u1ea9n \u0111o\u00e1n:<\/strong> Ch\u1ec9 xu\u1ea5t hi\u1ec7n khi r\u00f4to quay.<\/p>\n <p><strong>S\u1eeda l\u1ed7i:<\/strong> Lu\u00f4n y\u00eau c\u1ea7u c\u00e2n b\u1eb1ng tr\u00ean \u00edt nh\u1ea5t hai m\u1eb7t ph\u1eb3ng hi\u1ec7u ch\u1ec9nh \u0111\u1ec3 \u0111\u1ed3ng th\u1eddi b\u00f9 cho c\u1ea3 th\u00e0nh ph\u1ea7n l\u1ef1c v\u00e0 m\u00f4 men.<\/p>\n\n <h3>1.3. Nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 c\u1ee7a v\u1ea5n \u0111\u1ec1: S\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng \u0111\u1ebfn t\u1eeb \u0111\u00e2u?<\/h3>\n \n <p>Nguy\u00ean nh\u00e2n g\u00e2y m\u1ea5t c\u00e2n b\u1eb1ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh hai nh\u00f3m l\u1edbn, \u0111\u1eb7c bi\u1ec7t li\u00ean quan \u0111\u1ebfn <strong>c\u00e2n b\u1eb1ng kh\u00ed th\u1ea3i<\/strong> \u1ee9ng d\u1ee5ng:<\/p>\n \n <h4>C\u00e1c y\u1ebfu t\u1ed1 v\u1eadn h\u00e0nh (ph\u1ed5 bi\u1ebfn nh\u1ea5t):<\/h4>\n <ul>\n <li><strong>T\u00edch l\u0169y v\u1eadt ch\u1ea5t:<\/strong> Nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t khi\u1ebfn qu\u1ea1t h\u00fat ho\u1ea1t \u0111\u1ed9ng trong m\u00f4i tr\u01b0\u1eddng \u00f4 nhi\u1ec5m. B\u1ee5i, \u0111\u1ea5t, s\u01a1n, s\u1ea3n ph\u1ea9m ch\u1ebf bi\u1ebfn ho\u1eb7c \u0111\u1ed9 \u1ea9m t\u00edch t\u1ee5 kh\u00f4ng \u0111\u1ec1u tr\u00ean c\u00e1nh qu\u1ea1t l\u00e0m thay \u0111\u1ed5i s\u1ef1 ph\u00e2n b\u1ed1 kh\u1ed1i l\u01b0\u1ee3ng.<\/li>\n <li><strong>S\u1ef1 m\u00e0i m\u00f2n v\u00e0 \u0103n m\u00f2n:<\/strong> S\u1ef1 m\u00e0i m\u00f2n kh\u00f4ng \u0111\u1ec1u c\u1ee7a l\u01b0\u1ee1i dao, s\u1ef1 x\u00f3i m\u00f2n c\u1ee7a gi\u1ecdt ch\u1ea5t l\u1ecfng ho\u1eb7c s\u1ef1 \u0103n m\u00f2n h\u00f3a h\u1ecdc d\u1eabn \u0111\u1ebfn m\u1ea5t kh\u1ed1i l\u01b0\u1ee3ng \u1edf m\u1ed9t s\u1ed1 khu v\u1ef1c v\u00e0 m\u1ea5t c\u00e2n b\u1eb1ng.<\/li>\n <li><strong>Bi\u1ebfn d\u1ea1ng nhi\u1ec7t:<\/strong> S\u1ef1 gia nhi\u1ec7t ho\u1eb7c l\u00e0m m\u00e1t kh\u00f4ng \u0111\u1ec1u c\u1ee7a r\u00f4to, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong th\u1eddi gian t\u1eaft m\u00e1y k\u00e9o d\u00e0i c\u1ee7a thi\u1ebft b\u1ecb n\u00f3ng, c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn tr\u1ee5c ho\u1eb7c c\u00e1nh qu\u1ea1t b\u1ecb u\u1ed1n cong t\u1ea1m th\u1eddi ho\u1eb7c v\u0129nh vi\u1ec5n.<\/li>\n <li><strong>M\u1ea5t c\u00e2n b\u1eb1ng tr\u1ecdng l\u01b0\u1ee3ng:<\/strong> C\u00e1c qu\u1ea3 c\u00e2n ch\u1ec9nh \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t tr\u01b0\u1edbc \u0111\u00f3 c\u00f3 th\u1ec3 b\u1ecb bong ra do rung \u0111\u1ed9ng, \u0103n m\u00f2n ho\u1eb7c t\u00e1c \u0111\u1ed9ng c\u01a1 h\u1ecdc.<\/li>\n <\/ul>\n \n <h4>L\u1ed7i s\u1ea3n xu\u1ea5t v\u00e0 l\u1eafp r\u00e1p:<\/h4>\n <ul>\n <li><strong>L\u1ed7i s\u1ea3n xu\u1ea5t:<\/strong> V\u1eadt li\u1ec7u kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u (v\u00ed d\u1ee5, \u0111\u1ed9 x\u1ed1p c\u1ee7a v\u1eadt \u0111\u00fac), gia c\u00f4ng kh\u00f4ng ch\u00ednh x\u00e1c ho\u1eb7c l\u1eafp r\u00e1p c\u00e1nh qu\u1ea1t v\u00e0o b\u00e1nh c\u00f4ng t\u00e1c k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng.<\/li>\n <li><strong>L\u1ed7i l\u1eafp r\u00e1p v\u00e0 c\u00e0i \u0111\u1eb7t:<\/strong> C\u00e1nh qu\u1ea1t l\u1eafp kh\u00f4ng \u0111\u00fang v\u00e0o tr\u1ee5c, kh\u00f4ng th\u1eb3ng h\u00e0ng, l\u1ecfng ch\u1ed1t h\u00e3m tr\u1ee5c, kh\u00f4ng th\u1eb3ng h\u00e0ng tr\u1ee5c \u0111\u1ed9ng c\u01a1 v\u00e0 qu\u1ea1t.<\/li>\n <li><strong>C\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn th\u00e0nh ph\u1ea7n:<\/strong> S\u1eed d\u1ee5ng d\u00e2y \u0111ai truy\u1ec1n \u0111\u1ed9ng kh\u00f4ng \u0111\u1ea1t ti\u00eau chu\u1ea9n ho\u1eb7c b\u1ecb m\u00f2n, \u1ed5 tr\u1ee5c b\u1ecb l\u1ed7i, b\u1ed9 ph\u1eadn g\u1eafn v\u00e0o n\u1ec1n m\u00f3ng b\u1ecb l\u1ecfng (t\u00ecnh tr\u1ea1ng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 "ch\u00e2n m\u1ec1m").<\/li>\n <\/ul>\n\n <h3>1.4. H\u1eadu qu\u1ea3 c\u1ee7a s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng: Ph\u1ea3n \u1ee9ng d\u00e2y chuy\u1ec1n h\u1ee7y di\u1ec7t<\/h3>\n \n <p>Vi\u1ec7c b\u1ecf qua c\u00e1c v\u1ea5n \u0111\u1ec1 m\u1ea5t c\u00e2n b\u1eb1ng s\u1ebd d\u1eabn \u0111\u1ebfn ph\u1ea3n \u1ee9ng d\u00e2y chuy\u1ec1n g\u00e2y ra h\u1eadu qu\u1ea3 ph\u00e1 ho\u1ea1i \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u1ea3 c\u00e1c th\u00e0nh ph\u1ea7n thi\u1ebft b\u1ecb c\u01a1 kh\u00ed v\u00e0 hi\u1ec7u su\u1ea5t kinh t\u1ebf, \u0111\u1eb7c bi\u1ec7t nghi\u00eam tr\u1ecdng trong h\u1ec7 th\u1ed1ng x\u1ea3:<\/p>\n \n <h4>H\u1eadu qu\u1ea3 v\u1ec1 m\u1eb7t c\u01a1 h\u1ecdc:<\/h4>\n <ul>\n <li><strong>\u0110\u1ed9 rung v\u00e0 ti\u1ebfng \u1ed3n:<\/strong> H\u1eadu qu\u1ea3 r\u00f5 r\u00e0ng nh\u1ea5t l\u00e0 \u0111\u1ed9 rung v\u00e0 ti\u1ebfng \u1ed3n t\u0103ng \u0111\u1ed9t ng\u1ed9t, d\u1eabn \u0111\u1ebfn \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c x\u1ea5u \u0111i v\u00e0 l\u00e0 d\u1ea5u hi\u1ec7u \u0111\u1ea7u ti\u00ean c\u1ee7a s\u1ef1 c\u1ed1.<\/li>\n <li><strong>M\u00f2n \u1ed5 tr\u1ee5c t\u0103ng t\u1ed1c:<\/strong> H\u1eadu qu\u1ea3 th\u01b0\u1eddng g\u1eb7p nh\u1ea5t, t\u1ed1n k\u00e9m nh\u1ea5t v\u00e0 nguy hi\u1ec3m nh\u1ea5t. T\u1ea3i tr\u1ecdng tu\u1ea7n ho\u00e0n t\u1eeb l\u1ef1c ly t\u00e2m g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng m\u1ecfi nhanh v\u00e0 ph\u00e1 h\u1ee7y c\u00e1c b\u1ed9 ph\u1eadn l\u0103n v\u00e0 r\u00e3nh l\u0103n, l\u00e0m gi\u1ea3m tu\u1ed5i th\u1ecd \u1ed5 tr\u1ee5c h\u00e0ng ch\u1ee5c l\u1ea7n.<\/li>\n <li><strong>L\u1ed7i m\u1ecfi:<\/strong> Ti\u1ebfp x\u00fac v\u1edbi rung \u0111\u1ed9ng k\u00e9o d\u00e0i s\u1ebd d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng m\u1ecfi trong kim lo\u1ea1i, c\u00f3 kh\u1ea3 n\u0103ng g\u00e2y ph\u00e1 h\u1ee7y tr\u1ee5c, k\u1ebft c\u1ea5u \u0111\u1ee1, m\u1ed1i h\u00e0n v\u00e0 th\u1eadm ch\u00ed l\u00e0m g\u00e3y bu l\u00f4ng neo gi\u1eef ch\u1eb7t thi\u1ebft b\u1ecb v\u00e0o m\u00f3ng.<\/li>\n <li><strong>Thi\u1ec7t h\u1ea1i cho c\u00e1c th\u00e0nh ph\u1ea7n l\u00e2n c\u1eadn:<\/strong> Rung \u0111\u1ed9ng c\u0169ng ph\u00e1 h\u1ee7y c\u00e1c k\u1ebft n\u1ed1i kh\u1edbp n\u1ed1i, truy\u1ec1n \u0111\u1ed9ng \u0111ai v\u00e0 ph\u1edbt tr\u1ee5c.<\/li>\n <\/ul>\n \n <h4>H\u1eadu qu\u1ea3 v\u1ec1 kinh t\u1ebf v\u00e0 ho\u1ea1t \u0111\u1ed9ng:<\/h4>\n <ul>\n <li><strong>T\u0103ng m\u1ee9c ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng:<\/strong> M\u1ed9t ph\u1ea7n \u0111\u00e1ng k\u1ec3 n\u0103ng l\u01b0\u1ee3ng \u0111\u1ed9ng c\u01a1 kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 di chuy\u1ec3n kh\u00f4ng kh\u00ed m\u00e0 \u0111\u1ec3 t\u1ea1o ra rung \u0111\u1ed9ng, d\u1eabn \u0111\u1ebfn t\u1ed5n th\u1ea5t t\u00e0i ch\u00ednh tr\u1ef1c ti\u1ebfp.<\/li>\n <li><strong>Hi\u1ec7u su\u1ea5t gi\u1ea3m:<\/strong> Rung \u0111\u1ed9ng c\u00f3 th\u1ec3 l\u00e0m gi\u00e1n \u0111o\u1ea1n \u0111\u1eb7c t\u00ednh kh\u00ed \u0111\u1ed9ng h\u1ecdc c\u1ee7a c\u00e1nh qu\u1ea1t, d\u1eabn \u0111\u1ebfn gi\u1ea3m lu\u1ed3ng kh\u00ed v\u00e0 \u00e1p su\u1ea5t do qu\u1ea1t h\u00fat t\u1ea1o ra.<\/li>\n <li><strong>Th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng kh\u1ea9n c\u1ea5p:<\/strong> Cu\u1ed1i c\u00f9ng, s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng s\u1ebd d\u1eabn \u0111\u1ebfn vi\u1ec7c ng\u1eebng ho\u1ea1t \u0111\u1ed9ng kh\u1ea9n c\u1ea5p c\u1ee7a thi\u1ebft b\u1ecb, g\u00e2y ra chi ph\u00ed s\u1eeda ch\u1eefa t\u1ed1n k\u00e9m v\u00e0 t\u1ed5n th\u1ea5t do d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t ng\u1eebng ho\u1ea1t \u0111\u1ed9ng.<\/li>\n <li><strong>M\u1ed1i \u0111e d\u1ecda v\u1ec1 an to\u00e0n:<\/strong> Trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p nghi\u00eam tr\u1ecdng, c\u00e1nh qu\u1ea1t c\u00f3 th\u1ec3 b\u1ecb ph\u00e1 h\u1ee7y \u1edf t\u1ed1c \u0111\u1ed9 cao, g\u00e2y ra m\u1ed1i \u0111e d\u1ecda tr\u1ef1c ti\u1ebfp \u0111\u1ebfn t\u00ednh m\u1ea1ng v\u00e0 s\u1ee9c kh\u1ecfe c\u1ee7a con ng\u01b0\u1eddi.<\/li>\n <\/ul>\n\n <h2>Ph\u1ea7n 2: Ch\u1ea9n \u0111o\u00e1n rung \u0111\u1ed9ng - Ngh\u1ec7 thu\u1eadt ch\u1ea9n \u0111o\u00e1n ch\u00ednh x\u00e1c<\/h2>\n \n <p>Ch\u1ea9n \u0111o\u00e1n \u0111\u00fang l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a vi\u1ec7c c\u00e2n b\u1eb1ng th\u00e0nh c\u00f4ng. Tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh hi\u1ec7u ch\u1ec9nh kh\u1ed1i l\u01b0\u1ee3ng, c\u1ea7n ph\u1ea3i x\u00e1c \u0111\u1ecbnh ch\u1eafc ch\u1eafn r\u1eb1ng m\u1ea5t c\u00e2n b\u1eb1ng th\u1ef1c s\u1ef1 l\u00e0 nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y ra rung \u0111\u1ed9ng qu\u00e1 m\u1ee9c. Ph\u1ea7n n\u00e0y t\u1eadp trung v\u00e0o c\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u00f4ng c\u1ee5 kh\u00f4ng ch\u1ec9 cho ph\u00e9p ph\u00e1t hi\u1ec7n v\u1ea5n \u0111\u1ec1 m\u00e0 c\u00f2n x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c b\u1ea3n ch\u1ea5t c\u1ee7a n\u00f3.<\/p>\n\n <h3>2.1. T\u1ea1i sao rung \u0111\u1ed9ng kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng l\u00e0 m\u1ea5t c\u00e2n b\u1eb1ng: Ch\u1ea9n \u0111o\u00e1n ph\u00e2n bi\u1ec7t<\/h3>\n \n <p>M\u1ed9t nguy\u00ean t\u1eafc quan tr\u1ecdng m\u00e0 m\u1ecdi chuy\u00ean gia b\u1ea3o tr\u00ec ph\u1ea3i hi\u1ec3u: rung \u0111\u1ed9ng qu\u00e1 m\u1ee9c l\u00e0 m\u1ed9t tri\u1ec7u ch\u1ee9ng, kh\u00f4ng ph\u1ea3i l\u00e0 ch\u1ea9n \u0111o\u00e1n. M\u1eb7c d\u00f9 m\u1ea5t c\u00e2n b\u1eb1ng l\u00e0 m\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t g\u00e2y rung \u0111\u1ed9ng qu\u1ea1t h\u00fat, nh\u01b0ng m\u1ed9t s\u1ed1 l\u1ed7i kh\u00e1c c\u0169ng c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c ki\u1ec3u rung t\u01b0\u01a1ng t\u1ef1, c\u1ea7n \u0111\u01b0\u1ee3c lo\u1ea1i tr\u1eeb tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u. <strong>c\u00e2n b\u1eb1ng kh\u00ed th\u1ea3i<\/strong> c\u00f4ng vi\u1ec7c.<\/p>\n \n <p>Nh\u1eefng khuy\u1ebft \u0111i\u1ec3m ch\u00ednh "ng\u1ee5y trang" th\u00e0nh s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng:<\/p>\n <ul>\n <li><strong>S\u1ef1 kh\u00f4ng c\u00e2n x\u1ee9ng:<\/strong> Tr\u1ee5c l\u1ec7ch gi\u1eefa \u0111\u1ed9ng c\u01a1 v\u00e0 qu\u1ea1t. Trong ph\u1ed5 rung \u0111\u1ed9ng, \u0111\u1eb7c tr\u01b0ng b\u1edfi \u0111\u1ec9nh \u0111\u00e1ng k\u1ec3 \u1edf t\u1ea7n s\u1ed1 ch\u1ea1y g\u1ea5p \u0111\u00f4i (2x), \u0111\u1eb7c bi\u1ec7t l\u00e0 theo h\u01b0\u1edbng tr\u1ee5c.<\/li>\n <li><strong>\u0110\u1ed9 l\u1ecfng c\u01a1 h\u1ecdc:<\/strong> N\u1edbi l\u1ecfng bu l\u00f4ng \u0111\u1ee1 \u1ed5 tr\u1ee5c, n\u1ee9t khung m\u00f3ng. Bi\u1ec3u hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng chu\u1ed7i s\u00f3ng h\u00e0i t\u1ea7n s\u1ed1 ch\u1ea1y (1x, 2x, 3x, v.v.) v\u00e0 trong tr\u01b0\u1eddng h\u1ee3p nghi\u00eam tr\u1ecdng, s\u00f3ng h\u00e0i ph\u1ee5 (0,5x, 1,5x).<\/li>\n <li><strong>L\u1ed7i \u1ed5 tr\u1ee5c l\u0103n:<\/strong> Bong tr\u00f3c, n\u1ee9t tr\u00ean r\u00e3nh l\u0103n ho\u1eb7c c\u00e1c b\u1ed9 ph\u1eadn l\u0103n. T\u1ea1o ra rung \u0111\u1ed9ng \u1edf c\u00e1c th\u00e0nh ph\u1ea7n t\u1ea7n s\u1ed1 cao, kh\u00f4ng \u0111\u1ed3ng b\u1ed9 (kh\u00f4ng ph\u1ea3i b\u1ed9i s\u1ed1 c\u1ee7a t\u1ea7n s\u1ed1 quay) \u0111\u1eb7c tr\u01b0ng \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n t\u1eeb h\u00ecnh d\u1ea1ng \u1ed5 tr\u1ee5c.<\/li>\n <li><strong>Tr\u1ee5c cong:<\/strong> T\u1ea1o ra rung \u0111\u1ed9ng \u1edf c\u1ea3 t\u1ea7n s\u1ed1 ch\u1ea1y (1x) v\u00e0 ch\u1ea1y k\u00e9p (2x), l\u00e0m ph\u1ee9c t\u1ea1p \u0111\u00e1ng k\u1ec3 vi\u1ec7c ch\u1ea9n \u0111o\u00e1n v\u00e0 y\u00eau c\u1ea7u \u1ee9ng d\u1ee5ng ph\u00e2n t\u00edch pha b\u1eaft bu\u1ed9c \u0111\u1ec3 ph\u00e2n bi\u1ec7t v\u1edbi m\u1ea5t c\u00e2n b\u1eb1ng v\u00e0 sai l\u1ec7ch.<\/li>\n <li><strong>C\u1ed9ng h\u01b0\u1edfng:<\/strong> S\u1ef1 khu\u1ebfch \u0111\u1ea1i rung \u0111\u1ed9ng m\u1ea1nh, \u0111a t\u1ea7n s\u1ed1 khi t\u1ea7n s\u1ed1 quay v\u1eadn h\u00e0nh tr\u00f9ng v\u1edbi m\u1ed9t trong c\u00e1c t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean c\u1ee7a k\u1ebft c\u1ea5u. T\u00ecnh tr\u1ea1ng c\u1ef1c k\u1ef3 nguy hi\u1ec3m n\u00e0y kh\u00f4ng th\u1ec3 lo\u1ea1i b\u1ecf b\u1eb1ng c\u00e1ch c\u00e2n b\u1eb1ng.<\/li>\n <\/ul>\n\n <h3>2.2. B\u1ed9 c\u00f4ng c\u1ee5 c\u1ee7a chuy\u00ean gia: \u0110\u00f4i m\u1eaft v\u00e0 \u0111\u00f4i tai c\u1ee7a k\u1ef9 s\u01b0<\/h3>\n \n <p>Ch\u1ea9n \u0111o\u00e1n rung \u0111\u1ed9ng ch\u00ednh x\u00e1c v\u00e0 ti\u1ebfp theo <strong>c\u00e2n b\u1eb1ng kh\u00ed th\u1ea3i<\/strong> y\u00eau c\u1ea7u thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng:<\/p>\n \n <ul>\n <li><strong>C\u1ea3m bi\u1ebfn rung (M\u00e1y \u0111o gia t\u1ed1c):<\/strong> Ph\u01b0\u01a1ng ph\u00e1p thu th\u1eadp d\u1eef li\u1ec7u ch\u00ednh. \u0110\u1ec3 c\u00f3 h\u00ecnh \u1ea3nh rung \u0111\u1ed9ng ba chi\u1ec1u ho\u00e0n ch\u1ec9nh c\u1ee7a m\u00e1y, c\u00e1c c\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t tr\u00ean v\u1ecf \u1ed5 tr\u1ee5c theo ba h\u01b0\u1edbng vu\u00f4ng g\u00f3c v\u1edbi nhau: ngang, d\u1ecdc v\u00e0 d\u1ecdc tr\u1ee5c.<\/li>\n <li><strong>M\u00e1y ph\u00e2n t\u00edch\/c\u00e2n b\u1eb1ng rung \u0111\u1ed9ng di \u0111\u1ed9ng:<\/strong> C\u00e1c nh\u1ea1c c\u1ee5 hi\u1ec7n \u0111\u1ea1i nh\u01b0 <strong>Balanset-1A<\/strong> K\u1ebft h\u1ee3p c\u00e1c ch\u1ee9c n\u0103ng c\u1ee7a m\u00e1y \u0111o rung \u0111\u1ed9ng (\u0111o m\u1ee9c rung \u0111\u1ed9ng t\u1ed5ng th\u1ec3), m\u00e1y ph\u00e2n t\u00edch ph\u1ed5 bi\u1ebfn \u0111\u1ed5i Fourier nhanh (FFT), m\u00e1y \u0111o pha v\u00e0 m\u00e1y t\u00ednh c\u00e2n b\u1eb1ng. Ch\u00fang cho ph\u00e9p ch\u1ea9n \u0111o\u00e1n v\u00e0 c\u00e2n b\u1eb1ng to\u00e0n di\u1ec7n ngay t\u1ea1i n\u01a1i v\u1eadn h\u00e0nh thi\u1ebft b\u1ecb.<\/li>\n <li><strong>M\u00e1y \u0111o t\u1ed1c \u0111\u1ed9 (Quang h\u1ecdc ho\u1eb7c Laser):<\/strong> L\u00e0 m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a b\u1ea5t k\u1ef3 b\u1ed9 c\u00e2n b\u1eb1ng n\u00e0o. C\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111o t\u1ed1c \u0111\u1ed9 quay ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ed3ng b\u1ed9 h\u00f3a ph\u00e9p \u0111o pha. \u0110\u1ec3 v\u1eadn h\u00e0nh, m\u1ed9t mi\u1ebfng b\u0103ng ph\u1ea3n quang nh\u1ecf \u0111\u01b0\u1ee3c d\u00e1n v\u00e0o tr\u1ee5c ho\u1eb7c b\u1ed9 ph\u1eadn quay kh\u00e1c.<\/li>\n <li><strong>Ph\u1ea7n m\u1ec1m:<\/strong> Ph\u1ea7n m\u1ec1m chuy\u00ean d\u1ee5ng cho ph\u00e9p duy tr\u00ec c\u01a1 s\u1edf d\u1eef li\u1ec7u thi\u1ebft b\u1ecb, ph\u00e2n t\u00edch xu h\u01b0\u1edbng rung \u0111\u1ed9ng theo th\u1eddi gian, th\u1ef1c hi\u1ec7n ch\u1ea9n \u0111o\u00e1n ph\u1ed5 chuy\u00ean s\u00e2u v\u00e0 t\u1ef1 \u0111\u1ed9ng t\u1ea1o b\u00e1o c\u00e1o c\u00f4ng vi\u1ec7c.<\/li>\n <\/ul>\n\n <h3>2.3. \u0110\u1ecdc ph\u1ed5 rung \u0111\u1ed9ng (Ph\u00e2n t\u00edch FFT): Gi\u1ea3i m\u00e3 t\u00edn hi\u1ec7u m\u00e1y<\/h3>\n \n <p>T\u00edn hi\u1ec7u rung \u0111\u1ed9ng \u0111o \u0111\u01b0\u1ee3c b\u1eb1ng gia t\u1ed1c k\u1ebf bi\u1ec3u th\u1ecb s\u1ef1 ph\u1ee5 thu\u1ed9c ph\u1ee9c t\u1ea1p gi\u1eefa bi\u00ean \u0111\u1ed9 v\u00e0 th\u1eddi gian. V\u1ec1 m\u1eb7t ch\u1ea9n \u0111o\u00e1n, t\u00edn hi\u1ec7u n\u00e0y kh\u00f4ng cung c\u1ea5p nhi\u1ec1u th\u00f4ng tin. Ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch ch\u00ednh l\u00e0 Bi\u1ebfn \u0111\u1ed5i Fourier Nhanh (FFT), ph\u00e2n t\u00edch to\u00e1n h\u1ecdc t\u00edn hi\u1ec7u th\u1eddi gian ph\u1ee9c t\u1ea1p th\u00e0nh ph\u1ed5 t\u1ea7n s\u1ed1 c\u1ee7a n\u00f3. Ph\u1ed5 n\u00e0y cho th\u1ea5y ch\u00ednh x\u00e1c t\u1ea7n s\u1ed1 n\u00e0o ch\u1ee9a n\u0103ng l\u01b0\u1ee3ng rung \u0111\u1ed9ng, cho ph\u00e9p x\u00e1c \u0111\u1ecbnh c\u00e1c ngu\u1ed3n rung \u0111\u1ed9ng n\u00e0y.<\/p>\n \n <p>Ch\u1ec9 b\u00e1o m\u1ea5t c\u00e2n b\u1eb1ng ch\u00ednh trong ph\u1ed5 rung \u0111\u1ed9ng l\u00e0 s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a m\u1ed9t \u0111\u1ec9nh tr\u1ed9i \u1edf t\u1ea7n s\u1ed1 b\u1eb1ng ch\u00ednh x\u00e1c t\u1ea7n s\u1ed1 quay c\u1ee7a r\u00f4-to. T\u1ea7n s\u1ed1 n\u00e0y \u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u l\u00e0 1x. Bi\u00ean \u0111\u1ed9 (chi\u1ec1u cao) c\u1ee7a \u0111\u1ec9nh n\u00e0y t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi \u0111\u1ed9 l\u1edbn m\u1ea5t c\u00e2n b\u1eb1ng.<\/p>\n\n <div class=\"table-container\">\n <table>\n <thead>\n <tr>\n <th>Khuy\u1ebft \u0111i\u1ec3m<\/th>\n <th>T\u1ea7n s\u1ed1 \u0111\u1eb7c tr\u01b0ng trong quang ph\u1ed5<\/th>\n <th>T\u00ednh n\u0103ng \u0111o pha<\/th>\n <th>H\u00e0nh \u0111\u1ed9ng \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t<\/th>\n <\/tr>\n <\/thead>\n <tbody>\n <tr>\n <td>M\u1ea5t c\u00e2n b\u1eb1ng t\u0129nh<\/td>\n <td>\u0110\u1ec9nh 1x chi\u1ebfm \u01b0u th\u1ebf theo h\u01b0\u1edbng xuy\u00ean t\u00e2m (ngang, d\u1ecdc)<\/td>\n <td>Pha \u1ed5n \u0111\u1ecbnh. \u0110\u1ed9 l\u1ec7ch pha gi\u1eefa c\u00e1c \u0111i\u1ec3m t\u1ef1a c\u00f9ng h\u01b0\u1edbng ~0\u00b0 (\u00b130\u00b0)<\/td>\n <td>V\u1ec7 sinh c\u00e1nh qu\u1ea1t. Th\u1ef1c hi\u1ec7n c\u00e2n b\u1eb1ng m\u1eb7t ph\u1eb3ng \u0111\u01a1n<\/td>\n <\/tr>\n <tr>\n <td>C\u1eb7p \u0111\u00f4i\/M\u1ea5t c\u00e2n b\u1eb1ng \u0111\u1ed9ng<\/td>\n <td>\u0110\u1ec9nh 1x chi\u1ebfm \u01b0u th\u1ebf theo h\u01b0\u1edbng xuy\u00ean t\u00e2m v\u00e0 th\u01b0\u1eddng l\u00e0 h\u01b0\u1edbng tr\u1ee5c<\/td>\n <td>Pha \u1ed5n \u0111\u1ecbnh. \u0110\u1ed9 l\u1ec7ch pha gi\u1eefa c\u00e1c \u0111i\u1ec3m t\u1ef1a c\u00f9ng h\u01b0\u1edbng ~180\u00b0 (\u00b130\u00b0)<\/td>\n <td>Ki\u1ec3m tra bi\u1ebfn d\u1ea1ng ("h\u00ecnh s\u1ed1 t\u00e1m"). Th\u1ef1c hi\u1ec7n c\u00e2n b\u1eb1ng hai m\u1eb7t ph\u1eb3ng<\/td>\n <\/tr>\n <tr>\n <td>S\u1ef1 kh\u00f4ng th\u1eb3ng h\u00e0ng<\/td>\n <td>\u0110\u1ec9nh 2x cao, th\u01b0\u1eddng \u0111i k\u00e8m v\u1edbi 1x v\u00e0 3x. \u0110\u1eb7c bi\u1ec7t \u0111\u00e1ng ch\u00fa \u00fd theo h\u01b0\u1edbng tr\u1ee5c<\/td>\n <td>\u0110\u1ed9 l\u1ec7ch pha ~180\u00b0 theo h\u01b0\u1edbng tr\u1ee5c tr\u00ean kh\u1edbp n\u1ed1i<\/td>\n <td>Th\u1ef1c hi\u1ec7n c\u0103n ch\u1ec9nh laser tr\u1ee5c \u0111\u1ed9ng c\u01a1 v\u00e0 qu\u1ea1t<\/td>\n <\/tr>\n <tr>\n <td>\u0110\u1ed9 l\u1ecfng c\u01a1 h\u1ecdc<\/td>\n <td>Chu\u1ed7i s\u00f3ng h\u00e0i 1x, 2x, 3x... Th\u01b0\u1eddng c\u00f3 s\u00f3ng h\u00e0i ph\u1ee5 (0,5x, 1,5x)<\/td>\n <td>Giai \u0111o\u1ea1n "nh\u1ea3y" kh\u00f4ng \u1ed5n \u0111\u1ecbnh<\/td>\n <td>Si\u1ebft ch\u1eb7t t\u1ea5t c\u1ea3 c\u00e1c k\u1ebft n\u1ed1i bu l\u00f4ng (gi\u00e1 \u0111\u1ee1, m\u00f3ng). Ki\u1ec3m tra xem c\u00f3 v\u1ebft n\u1ee9t kh\u00f4ng<\/td>\n <\/tr>\n <tr>\n <td>L\u1ed7i \u1ed5 tr\u1ee5c l\u0103n<\/td>\n <td>C\u00e1c \u0111\u1ec9nh t\u1ea7n s\u1ed1 cao, kh\u00f4ng \u0111\u1ed3ng b\u1ed9 \u1edf c\u00e1c t\u1ea7n s\u1ed1 khuy\u1ebft t\u1eadt \u0111\u1eb7c tr\u01b0ng<\/td>\n <td>-<\/td>\n <td>Ki\u1ec3m tra b\u00f4i tr\u01a1n. Thay th\u1ebf \u1ed5 tr\u1ee5c<\/td>\n <\/tr>\n <tr>\n <td>S\u1ef1 c\u1ed9ng h\u01b0\u1edfng<\/td>\n <td>\u0110\u1ec9nh c\u1ef1c cao \u1edf t\u1ea7n s\u1ed1 ho\u1ea1t \u0111\u1ed9ng tr\u00f9ng v\u1edbi t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean<\/td>\n <td>Pha thay \u0111\u1ed5i \u0111\u1ed9t ng\u1ed9t 180\u00b0 khi \u0111i qua t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng<\/td>\n <td>Thay \u0111\u1ed5i t\u1ed1c \u0111\u1ed9 v\u1eadn h\u00e0nh ho\u1eb7c \u0111\u1ed9 c\u1ee9ng c\u1ee7a k\u1ebft c\u1ea5u. C\u00e2n b\u1eb1ng kh\u00f4ng hi\u1ec7u qu\u1ea3<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n <h3>2.4. Vai tr\u00f2 ch\u00ednh c\u1ee7a Ph\u00e2n t\u00edch pha: X\u00e1c nh\u1eadn ch\u1ea9n \u0111o\u00e1n<\/h3>\n \n <p>Ph\u00e2n t\u00edch pha l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd cho ph\u00e9p x\u00e1c nh\u1eadn ch\u1eafc ch\u1eafn ch\u1ea9n \u0111o\u00e1n "m\u1ea5t c\u00e2n b\u1eb1ng" v\u00e0 ph\u00e2n bi\u1ec7t n\u00f3 v\u1edbi c\u00e1c khi\u1ebfm khuy\u1ebft kh\u00e1c c\u0169ng bi\u1ec3u hi\u1ec7n \u1edf t\u1ea7n s\u1ed1 ch\u1ea1y 1x.<\/p>\n \n <p>Pha v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 m\u1ed1i quan h\u1ec7 th\u1eddi gian gi\u1eefa hai t\u00edn hi\u1ec7u rung \u0111\u1ed9ng c\u00f3 c\u00f9ng t\u1ea7n s\u1ed1, \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng \u0111\u1ed9. N\u00f3 cho th\u1ea5y c\u00e1c \u0111i\u1ec3m kh\u00e1c nhau c\u1ee7a m\u00e1y di chuy\u1ec3n nh\u01b0 th\u1ebf n\u00e0o so v\u1edbi nhau v\u00e0 so v\u1edbi v\u1ea1ch ph\u1ea3n x\u1ea1 tr\u00ean tr\u1ee5c.<\/p>\n \n <h4>X\u00e1c \u0111\u1ecbnh lo\u1ea1i m\u1ea5t c\u00e2n b\u1eb1ng theo pha:<\/h4>\n <ul>\n <li><strong>M\u1ea5t c\u00e2n b\u1eb1ng t\u0129nh:<\/strong> C\u1ea3 hai gi\u00e1 \u0111\u1ee1 \u1ed5 tr\u1ee5c \u0111\u1ec1u chuy\u1ec3n \u0111\u1ed9ng \u0111\u1ed3ng b\u1ed9, "c\u00f9ng pha". Do \u0111\u00f3, \u0111\u1ed9 l\u1ec7ch g\u00f3c pha \u0111\u01b0\u1ee3c \u0111o t\u1ea1i hai gi\u00e1 \u0111\u1ee1 theo c\u00f9ng m\u1ed9t h\u01b0\u1edbng xuy\u00ean t\u00e2m s\u1ebd g\u1ea7n b\u1eb1ng 0\u00b0 (\u00b130\u00b0).<\/li>\n <li><strong>S\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng \u0111\u1ed9ng ho\u1eb7c c\u1eb7p \u0111\u00f4i:<\/strong> C\u00e1c gi\u00e1 \u0111\u1ee1 th\u1ef1c hi\u1ec7n chuy\u1ec3n \u0111\u1ed9ng dao \u0111\u1ed9ng "ng\u01b0\u1ee3c pha". Do \u0111\u00f3, \u0111\u1ed9 l\u1ec7ch pha gi\u1eefa ch\u00fang s\u1ebd g\u1ea7n 180\u00b0 (\u00b130\u00b0).<\/li>\n <\/ul>\n \n <div class=\"warning\">\n <strong>L\u01b0u \u00fd quan tr\u1ecdng:<\/strong> B\u1ea3n th\u00e2n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh g\u00f3c pha l\u00e0 m\u1ed9t ti\u00eau ch\u00ed ch\u1ea9n \u0111o\u00e1n quan tr\u1ecdng. Tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u c\u00e2n b\u1eb1ng, c\u1ea7n th\u1ef1c hi\u1ec7n 2-3 l\u1ea7n kh\u1edfi \u0111\u1ed9ng ki\u1ec3m so\u00e1t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o bi\u00ean \u0111\u1ed9 v\u00e0 pha c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i (v\u00ed d\u1ee5, pha kh\u00f4ng l\u1ec7ch qu\u00e1 10-15\u00b0). N\u1ebfu pha "tr\u00f4i" h\u1ed7n lo\u1ea1n ho\u1eb7c thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 trong qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng l\u1eb7p l\u1ea1i, \u0111\u00e2y l\u00e0 "c\u1edd \u0111\u1ecf" cho th\u1ea5y s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a m\u1ed9t v\u1ea5n \u0111\u1ec1 ph\u1ee9c t\u1ea1p h\u01a1n l\u00e0 m\u1ea5t c\u00e2n b\u1eb1ng \u0111\u01a1n thu\u1ea7n.\n <\/div>\n\n\t\t\t\t\t<section class=\"woocommerce hestia-shop products is-shortcode\" id=\"products\" data-sorder=\"hestia_shop\" >\n\t\t\t\t\t\t<div class=\"\">\n\t\t\t\t\t\t<div class=\"hestia-shop-content\">\n\t\t\t<div class=\"row\" data-aos=\"fade-up\" >\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/vi\/product\/balanset-1\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/vi\/product\/balanset-1\/\" title=\"M\u00e1y c\u00e2n b\u1eb1ng di \u0111\u1ed9ng & M\u00e1y ph\u00e2n t\u00edch rung \u0111\u1ed9ng Balanset-1A\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"B\u1ed9 \u0111\u1ea7y \u0111\u1ee7 m\u00e1y c\u00e2n b\u1eb1ng v\u00e0 ph\u00e2n t\u00edch rung \u0111\u1ed9ng c\u1ea7m tay Balanset-1A\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/vi\/product-category\/devices\/\" rel=\"tag\">Thi\u1ebft b\u1ecb<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/vi\/product\/balanset-1\/\" title=\"M\u00e1y c\u00e2n b\u1eb1ng di \u0111\u1ed9ng & M\u00e1y ph\u00e2n t\u00edch rung \u0111\u1ed9ng Balanset-1A\">M\u00e1y c\u00e2n b\u1eb1ng di \u0111\u1ed9ng & M\u00e1y ph\u00e2n t\u00edch rung \u0111\u1ed9ng Balanset-1A<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,975.00<\/span> + Thu\u1ebf GTGT (n\u1ebfu c\u00f3)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/vi\/wp-json\/wp\/v2\/posts\/800?add-to-cart=986\" data-quantity=\"1\" data-product_id=\"986\" data-product_sku=\"BS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/vi\/wp-json\/wp\/v2\/posts\/800?add-to-cart=986\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_986\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"986\" data-product_sku=\"BS-1\" aria-label=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng: \u201cPortable balancer & Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer & Vibration analyzer Balanset-1A\u201d \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o gi\u1ecf h\u00e0ng c\u1ee7a b\u1ea1n\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_986\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/vi\/product\/vibration-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/vi\/product\/vibration-sensor\/\" title=\"C\u1ea3m bi\u1ebfn rung\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"C\u1eadn c\u1ea3nh c\u1ea3m bi\u1ebfn rung Balanset-1A\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/vi\/product-category\/parts\/\" rel=\"tag\">Ph\u1ee5 t\u00f9ng<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/vi\/product\/vibration-sensor\/\" title=\"C\u1ea3m bi\u1ebfn rung\">C\u1ea3m bi\u1ebfn rung<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>90.00<\/span> + Thu\u1ebf GTGT (n\u1ebfu c\u00f3)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/vi\/wp-json\/wp\/v2\/posts\/800?add-to-cart=1820\" data-quantity=\"1\" data-product_id=\"1820\" data-product_sku=\"VS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/vi\/wp-json\/wp\/v2\/posts\/800?add-to-cart=1820\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1820\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1820\" data-product_sku=\"VS-1\" aria-label=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o gi\u1ecf h\u00e0ng c\u1ee7a b\u1ea1n\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1820\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/vi\/product\/optical-sensor-for-balanset-and-arbalance\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/vi\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"C\u1ea3m bi\u1ebfn quang h\u1ecdc (M\u00e1y \u0111o t\u1ed1c \u0111\u1ed9 laser)\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"C\u1ea3m bi\u1ebfn quang h\u1ecdc (M\u00e1y \u0111o t\u1ed1c \u0111\u1ed9 laser)\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1536x1023.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU.webp 1600w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/vi\/product-category\/parts\/\" rel=\"tag\">Ph\u1ee5 t\u00f9ng<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/vi\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"C\u1ea3m bi\u1ebfn quang h\u1ecdc (M\u00e1y \u0111o t\u1ed1c \u0111\u1ed9 laser)\">C\u1ea3m bi\u1ebfn quang h\u1ecdc (M\u00e1y \u0111o t\u1ed1c \u0111\u1ed9 laser)<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>124.00<\/span> + Thu\u1ebf GTGT (n\u1ebfu c\u00f3)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/vi\/wp-json\/wp\/v2\/posts\/800?add-to-cart=1832\" data-quantity=\"1\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/vi\/wp-json\/wp\/v2\/posts\/800?add-to-cart=1832\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1832\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" aria-label=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o gi\u1ecf h\u00e0ng c\u1ee7a b\u1ea1n\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1832\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/vi\/product\/balanset-4\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/vi\/product\/balanset-4\/\" title=\"Balanset-4\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"B\u1ed9 d\u1ee5ng c\u1ee5 c\u00e2n b\u1eb1ng r\u00f4to Vibromera: h\u1ed9p \u0111\u1ef1ng, b\u1ed9 \u0111i\u1ec1u ch\u1ec9nh t\u00edn hi\u1ec7u \u0111a k\u00eanh, m\u00e1y ph\u00e2n t\u00edch c\u1ea7m tay, \u0111\u1ebf t\u1eeb, c\u1ea3m bi\u1ebfn rung v\u00e0 d\u00e2y c\u00e1p xo\u1eafn.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4.webp 640w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/vi\/product-category\/devices\/\" rel=\"tag\">Thi\u1ebft b\u1ecb<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/vi\/product\/balanset-4\/\" title=\"Balanset-4\">Balanset-4<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>6,803.00<\/span> + Thu\u1ebf GTGT (n\u1ebfu c\u00f3)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/vi\/wp-json\/wp\/v2\/posts\/800?add-to-cart=1833\" data-quantity=\"1\" data-product_id=\"1833\" data-product_sku=\"BS-4\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/vi\/wp-json\/wp\/v2\/posts\/800?add-to-cart=1833\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1833\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1833\" data-product_sku=\"BS-4\" aria-label=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o gi\u1ecf h\u00e0ng c\u1ee7a b\u1ea1n\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1833\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div><!-- \/.row --><div class=\"row\">\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/vi\/product\/magnet-stand\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/vi\/product\/magnet-stand\/\" title=\"\u0110\u1ebf t\u1eeb Insize-60-kgf\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"\u0110\u1ebf nam ch\u00e2m.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/vi\/product-category\/parts\/\" rel=\"tag\">Ph\u1ee5 t\u00f9ng<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/vi\/product\/magnet-stand\/\" title=\"\u0110\u1ebf t\u1eeb Insize-60-kgf\">\u0110\u1ebf t\u1eeb Insize-60-kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>46.00<\/span> + Thu\u1ebf GTGT (n\u1ebfu c\u00f3)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/vi\/wp-json\/wp\/v2\/posts\/800?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/vi\/wp-json\/wp\/v2\/posts\/800?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1852\" data-product_sku=\"MS-1\" aria-label=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o gi\u1ecf h\u00e0ng c\u1ee7a b\u1ea1n\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1852\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/vi\/product\/reflective-tape\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/vi\/product\/reflective-tape\/\" title=\"B\u0103ng ph\u1ea3n quang\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"B\u0103ng ph\u1ea3n quang\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-16x12.webp 16w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/vi\/product-category\/parts\/\" rel=\"tag\">Ph\u1ee5 t\u00f9ng<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/vi\/product\/reflective-tape\/\" title=\"B\u0103ng ph\u1ea3n quang\">B\u0103ng ph\u1ea3n quang<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>10.00<\/span> + Thu\u1ebf GTGT (n\u1ebfu c\u00f3)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/vi\/wp-json\/wp\/v2\/posts\/800?add-to-cart=2329\" data-quantity=\"1\" data-product_id=\"2329\" data-product_sku=\"rt-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/vi\/wp-json\/wp\/v2\/posts\/800?add-to-cart=2329\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2329\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"2329\" data-product_sku=\"rt-1\" aria-label=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o gi\u1ecf h\u00e0ng c\u1ee7a b\u1ea1n\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2329\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/vi\/product\/dynamic-balancer-balanset-1a\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/vi\/product\/dynamic-balancer-balanset-1a\/\" title=\"M\u00e1y c\u00e2n b\u1eb1ng \u0111\u1ed9ng \u201cBalanset-1A\u201d OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"N\u1ed9i dung b\u1ed9 s\u1ea3n ph\u1ea9m Balanset-1A bao g\u1ed3m thi\u1ebft b\u1ecb giao di\u1ec7n, c\u1ea3m bi\u1ebfn, m\u00e1y \u0111o t\u1ed1c \u0111\u1ed9 v\u00e0 c\u00e1c ph\u1ee5 ki\u1ec7n\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1024x683.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1536x1024.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-2048x1366.webp 2048w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-e1732998877834.webp 708w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/vi\/product-category\/devices\/\" rel=\"tag\">Thi\u1ebft b\u1ecb<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/vi\/product\/dynamic-balancer-balanset-1a\/\" title=\"M\u00e1y c\u00e2n b\u1eb1ng \u0111\u1ed9ng \u201cBalanset-1A\u201d OEM\">M\u00e1y c\u00e2n b\u1eb1ng \u0111\u1ed9ng \u201cBalanset-1A\u201d OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,735.00<\/span> + Thu\u1ebf GTGT (n\u1ebfu c\u00f3)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/vi\/wp-json\/wp\/v2\/posts\/800?add-to-cart=4193\" data-quantity=\"1\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/vi\/wp-json\/wp\/v2\/posts\/800?add-to-cart=4193\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_4193\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" aria-label=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o gi\u1ecf h\u00e0ng c\u1ee7a b\u1ea1n\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_4193\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/section>\n\t\t\n\t\t\t\n <h2>Ph\u1ea7n 3: H\u01b0\u1edbng d\u1eabn c\u00e2n b\u1eb1ng th\u1ef1c t\u1ebf - Ph\u01b0\u01a1ng ph\u00e1p t\u1eebng b\u01b0\u1edbc v\u00e0 m\u1eb9o chuy\u00ean nghi\u1ec7p<\/h2>\n \n <p>Ph\u1ea7n n\u00e0y tr\u00ecnh b\u00e0y h\u01b0\u1edbng d\u1eabn chi ti\u1ebft, t\u1eebng b\u01b0\u1edbc \u0111\u1ec3 th\u1ef1c hi\u1ec7n <strong>c\u00e2n b\u1eb1ng kh\u00ed th\u1ea3i<\/strong> c\u00f4ng vi\u1ec7c, t\u1eeb c\u00e1c ho\u1ea1t \u0111\u1ed9ng chu\u1ea9n b\u1ecb \u0111\u1ebfn c\u00e1c k\u1ef9 thu\u1eadt chuy\u00ean bi\u1ec7t cho c\u00e1c lo\u1ea1i qu\u1ea1t h\u00fat kh\u00e1c nhau.<\/p>\n\n <h3>3.1. Giai \u0111o\u1ea1n chu\u1ea9n b\u1ecb - 50% c\u1ee7a th\u00e0nh c\u00f4ng<\/h3>\n \n <p>Chu\u1ea9n b\u1ecb ch\u1ea5t l\u01b0\u1ee3ng l\u00e0 ch\u00eca kh\u00f3a th\u00e0nh c\u00f4ng v\u00e0 an to\u00e0n <strong>c\u00e2n b\u1eb1ng kh\u00ed th\u1ea3i<\/strong>. B\u1ecf qua giai \u0111o\u1ea1n n\u00e0y th\u01b0\u1eddng d\u1eabn \u0111\u1ebfn k\u1ebft qu\u1ea3 kh\u00f4ng ch\u00ednh x\u00e1c v\u00e0 m\u1ea5t th\u1eddi gian.<\/p>\n \n <h4>An to\u00e0n l\u00e0 tr\u00ean h\u1ebft:<\/h4>\n <p>Tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u b\u1ea5t k\u1ef3 c\u00f4ng vi\u1ec7c n\u00e0o, thi\u1ebft b\u1ecb ph\u1ea3i \u0111\u01b0\u1ee3c ng\u1eaft \u0111i\u1ec7n ho\u00e0n to\u00e0n. C\u00e1c quy tr\u00ecnh kh\u00f3a\/g\u1eafn th\u1ebb ti\u00eau chu\u1ea9n (LOTO) \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u1ec3 ng\u0103n ng\u1eeba kh\u1edfi \u0111\u1ed9ng ng\u1eabu nhi\u00ean. Ph\u1ea3i ki\u1ec3m tra xem c\u00f3 \u0111i\u1ec7n \u00e1p t\u1ea1i c\u00e1c \u0111\u1ea7u c\u1ef1c c\u1ee7a \u0111\u1ed9ng c\u01a1 kh\u00f4ng.<\/p>\n \n <h4>V\u1ec7 sinh v\u00e0 ki\u1ec3m tra tr\u1ef1c quan:<\/h4>\n <p>\u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 thao t\u00e1c s\u01a1 b\u1ed9 m\u00e0 l\u00e0 thao t\u00e1c ch\u00ednh. C\u00e1nh qu\u1ea1t ph\u1ea3i \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch ho\u00e0n to\u00e0n kh\u1ecfi m\u1ecdi c\u1eb7n b\u1ea9n t\u00edch t\u1ee5 - b\u1ee5i b\u1ea9n, b\u1ee5i m\u1ecbn, s\u1ea3n ph\u1ea9m. Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, ch\u1ec9 c\u1ea7n v\u1ec7 sinh \u0111\u00fang c\u00e1ch l\u00e0 c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n ho\u1eb7c gi\u1ea3m \u0111\u00e1ng k\u1ec3 s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng, khi\u1ebfn vi\u1ec7c c\u00e2n b\u1eb1ng th\u00eam tr\u1edf n\u00ean kh\u00f4ng c\u1ea7n thi\u1ebft. Sau khi v\u1ec7 sinh, c\u1ea7n ki\u1ec3m tra tr\u1ef1c quan c\u1ea9n th\u1eadn c\u00e1c c\u00e1nh qu\u1ea1t, \u0111\u0129a v\u00e0 m\u1ed1i h\u00e0n \u0111\u1ec3 t\u00ecm c\u00e1c v\u1ebft n\u1ee9t, v\u1ebft l\u00f5m, bi\u1ebfn d\u1ea1ng v\u00e0 d\u1ea5u hi\u1ec7u hao m\u00f2n.<\/p>\n \n <h4>Ki\u1ec3m tra c\u01a1 h\u1ecdc ("H\u1ec7 th\u1ed1ng ph\u00e2n c\u1ea5p can thi\u1ec7p"):<\/h4>\n <p>Tr\u01b0\u1edbc khi hi\u1ec7u ch\u1ec9nh ph\u00e2n b\u1ed5 kh\u1ed1i l\u01b0\u1ee3ng, ph\u1ea3i x\u00e1c minh \u0111\u1ed9 ch\u1eafc ch\u1eafn v\u1ec1 m\u1eb7t c\u01a1 h\u1ecdc c\u1ee7a to\u00e0n b\u1ed9 c\u1ee5m l\u1eafp r\u00e1p:<\/p>\n <ul>\n <li><strong>Si\u1ebft ch\u1eb7t k\u1ebft n\u1ed1i bu l\u00f4ng:<\/strong> Ki\u1ec3m tra v\u00e0 n\u1ebfu c\u1ea7n thi\u1ebft, h\u00e3y si\u1ebft ch\u1eb7t c\u00e1c bu l\u00f4ng c\u1ed1 \u0111\u1ecbnh c\u00e1nh qu\u1ea1t v\u00e0o tr\u1ee5c, tr\u1ee5c v\u00e0o tr\u1ee5c, v\u1ecf \u1ed5 tr\u1ee5c v\u00e0o khung v\u00e0 bu l\u00f4ng neo khung v\u00e0o m\u00f3ng.<\/li>\n <li><strong>Ki\u1ec3m tra h\u00ecnh h\u1ecdc:<\/strong> S\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 so \u0111\u1ec3 ki\u1ec3m tra \u0111\u1ed9 l\u1ec7ch t\u00e2m v\u00e0 \u0111\u1ed9 l\u1ec7ch tr\u1ee5c c\u1ee7a tr\u1ee5c v\u00e0 c\u00e1nh qu\u1ea1t. Ngo\u00e0i ra, b\u1eb1ng m\u1eaft th\u01b0\u1eddng ho\u1eb7c b\u1eb1ng khu\u00f4n m\u1eabu v\u00e0 d\u1ee5ng c\u1ee5 \u0111o, h\u00e3y ki\u1ec3m tra \u0111\u1ed9 th\u1eb3ng h\u00e0ng c\u1ee7a c\u00e1nh qu\u1ea1t v\u00e0 \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a g\u00f3c ti\u1ebfp x\u00fac.<\/li>\n <\/ul>\n\n <h3>3.2. C\u00e2n b\u1eb1ng t\u0129nh: C\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111\u01a1n gi\u1ea3n cho c\u00e1c tr\u01b0\u1eddng h\u1ee3p \u0111\u01a1n gi\u1ea3n<\/h3>\n \n <p>C\u00e2n b\u1eb1ng t\u0129nh \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho c\u00e1c r\u00f4to h\u00ecnh \u0111\u0129a h\u1eb9p (v\u00ed d\u1ee5, c\u00e1nh qu\u1ea1t c\u00f3 t\u1ef7 l\u1ec7 L\/D nh\u1ecf) khi c\u00e2n b\u1eb1ng \u0111\u1ed9ng kh\u00f4ng kh\u1ea3 thi v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt ho\u1eb7c kh\u00f4ng th\u1ef1c t\u1ebf v\u1ec1 m\u1eb7t kinh t\u1ebf.<\/p>\n \n <h4>Ph\u01b0\u01a1ng ph\u00e1p l\u01b0\u1ee1i dao:<\/h4>\n <p>Ph\u01b0\u01a1ng ph\u00e1p c\u1ed5 \u0111i\u1ec3n v\u00e0 r\u1ea5t ch\u00ednh x\u00e1c. Rotor (\u0111\u00e3 th\u00e1o kh\u1ecfi m\u00e1y) \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u00ean hai l\u0103ng tr\u1ee5 n\u1eb1m ngang, song song v\u00e0 nh\u1eb5n ho\u00e0n h\u1ea3o ho\u1eb7c tr\u00ean c\u00e1c gi\u00e1 \u0111\u1ee1 c\u00f3 ma s\u00e1t th\u1ea5p. D\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a tr\u1ecdng l\u1ef1c, "\u0111i\u1ec3m n\u1eb7ng" c\u1ee7a rotor s\u1ebd lu\u00f4n c\u00f3 xu h\u01b0\u1edbng n\u1eb1m \u1edf v\u1ecb tr\u00ed d\u01b0\u1edbi c\u00f9ng. Tr\u1ecdng l\u01b0\u1ee3ng hi\u1ec7u ch\u1ec9nh \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t ho\u00e0n to\u00e0n ng\u01b0\u1ee3c l\u1ea1i (\u1edf g\u00f3c 180\u00b0) v\u1edbi \u0111i\u1ec3m n\u00e0y. Quy tr\u00ecnh l\u1eb7p l\u1ea1i cho \u0111\u1ebfn khi rotor duy tr\u00ec tr\u1ea1ng th\u00e1i c\u00e2n b\u1eb1ng trung h\u00f2a \u1edf b\u1ea5t k\u1ef3 v\u1ecb tr\u00ed n\u00e0o.<\/p>\n \n <h4>Ph\u01b0\u01a1ng ph\u00e1p xoay t\u1ef1 do ("D\u00e2y d\u1ecdi"):<\/h4>\n <p>Ph\u01b0\u01a1ng ph\u00e1p \u0111\u01a1n gi\u1ea3n h\u00f3a \u00e1p d\u1ee5ng cho qu\u1ea1t c\u00f3 c\u00e1nh qu\u1ea1t l\u1eafp tr\u1ef1c ti\u1ebfp. Sau khi th\u00e1o d\u00e2y \u0111ai truy\u1ec1n \u0111\u1ed9ng (n\u1ebfu c\u00f3), c\u00e1nh qu\u1ea1t \u0111\u01b0\u1ee3c xoay ch\u1eadm v\u00e0 th\u1ea3 ra. C\u00e1nh qu\u1ea1t n\u1eb7ng nh\u1ea5t s\u1ebd r\u01a1i xu\u1ed1ng. Vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch th\u00eam v\u1eadt n\u1eb7ng nh\u1ecf (v\u00ed d\u1ee5, d\u00f9ng b\u0103ng d\u00ednh ho\u1eb7c nam ch\u00e2m) v\u00e0o c\u00e1nh qu\u1ea1t nh\u1eb9 nh\u1ea5t cho \u0111\u1ebfn khi c\u00e1nh qu\u1ea1t kh\u00f4ng c\u00f2n di chuy\u1ec3n theo b\u1ea5t k\u1ef3 v\u1ecb tr\u00ed c\u1ee5 th\u1ec3 n\u00e0o.<\/p>\n\n <h3>3.3. C\u00e2n b\u1eb1ng tr\u01b0\u1eddng \u0111\u1ed9ng: Ph\u01b0\u01a1ng ph\u00e1p ti\u1ebfp c\u1eadn chuy\u00ean nghi\u1ec7p<\/h3>\n \n <p>\u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p ch\u00ednh cho c\u00f4ng nghi\u1ec7p <strong>c\u00e2n b\u1eb1ng kh\u00ed th\u1ea3i<\/strong>, \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1c d\u1ee5ng c\u1ee5 chuy\u00ean d\u1ee5ng nh\u01b0 <strong>Balanset-1A<\/strong> kh\u00f4ng c\u1ea7n th\u00e1o r\u1eddi thi\u1ebft b\u1ecb. Quy tr\u00ecnh n\u00e0y bao g\u1ed3m m\u1ed9t s\u1ed1 b\u01b0\u1edbc b\u1eaft bu\u1ed9c.<\/p>\n \n <h4>B\u01b0\u1edbc 1: \u0110o l\u01b0\u1eddng ban \u0111\u1ea7u (Ch\u1ea1y ban \u0111\u1ea7u)<\/h4>\n <ul>\n <li>C\u1ea3m bi\u1ebfn rung \u0111\u01b0\u1ee3c l\u1eafp tr\u00ean v\u1ecf \u1ed5 tr\u1ee5c v\u00e0 b\u0103ng ph\u1ea3n quang \u0111\u01b0\u1ee3c d\u00e1n v\u00e0o tr\u1ee5c c\u1ee7a m\u00e1y \u0111o t\u1ed1c \u0111\u1ed9.<\/li>\n <li>Qu\u1ea1t h\u00fat \u0111\u01b0\u1ee3c kh\u1edfi \u0111\u1ed9ng v\u00e0 \u0111\u01b0a v\u1ec1 t\u1ed1c \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng.<\/li>\n <li>S\u1eed d\u1ee5ng m\u00e1y ph\u00e2n t\u00edch rung \u0111\u1ed9ng, d\u1eef li\u1ec7u ban \u0111\u1ea7u \u0111\u01b0\u1ee3c ghi l\u1ea1i: bi\u00ean \u0111\u1ed9 (th\u01b0\u1eddng t\u00ednh b\u1eb1ng mm\/gi\u00e2y) v\u00e0 g\u00f3c pha (t\u00ednh b\u1eb1ng \u0111\u1ed9) c\u1ee7a rung \u0111\u1ed9ng \u1edf t\u1ea7n s\u1ed1 ch\u1ea1y 1x. D\u1eef li\u1ec7u n\u00e0y bi\u1ec3u th\u1ecb vect\u01a1 m\u1ea5t c\u00e2n b\u1eb1ng ban \u0111\u1ea7u.<\/li>\n <\/ul>\n \n <h4>B\u01b0\u1edbc 2: Ch\u1ea1y th\u1eed v\u1edbi tr\u1ecdng l\u01b0\u1ee3ng<\/h4>\n <p><strong>Logic:<\/strong> \u0110\u1ec3 thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 t\u00ednh to\u00e1n ch\u00ednh x\u00e1c c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng, c\u1ea7n ph\u1ea3i \u0111\u01b0a nh\u1eefng thay \u0111\u1ed5i \u0111\u00e3 bi\u1ebft v\u00e0o h\u1ec7 th\u1ed1ng v\u00e0 quan s\u00e1t ph\u1ea3n \u1ee9ng c\u1ee7a ch\u00fang. \u0110\u00e2y ch\u00ednh l\u00e0 m\u1ee5c \u0111\u00edch c\u1ee7a vi\u1ec7c l\u1eafp \u0111\u1eb7t qu\u1ea3 c\u00e2n th\u1eed.<\/p>\n \n <ul>\n <li><strong>L\u1ef1a ch\u1ecdn kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 v\u1ecb tr\u00ed:<\/strong> Tr\u1ecdng l\u01b0\u1ee3ng th\u1eed \u0111\u01b0\u1ee3c ch\u1ecdn sao cho c\u00f3 th\u1ec3 g\u00e2y ra s\u1ef1 thay \u0111\u1ed5i \u0111\u00e1ng ch\u00fa \u00fd nh\u01b0ng an to\u00e0n trong vect\u01a1 rung \u0111\u1ed9ng (v\u00ed d\u1ee5, thay \u0111\u1ed5i bi\u00ean \u0111\u1ed9 20-30% v\u00e0\/ho\u1eb7c \u0111\u1ed9 l\u1ec7ch pha 20-30\u00b0). Tr\u1ecdng l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c g\u1eafn t\u1ea1m th\u1eddi v\u00e0o m\u1eb7t ph\u1eb3ng hi\u1ec7u ch\u1ec9nh \u0111\u00e3 ch\u1ecdn \u1edf v\u1ecb tr\u00ed g\u00f3c \u0111\u00e3 bi\u1ebft.<\/li>\n <li><strong>\u0110o l\u01b0\u1eddng:<\/strong> L\u1eb7p l\u1ea1i qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng v\u00e0 \u0111o l\u01b0\u1eddng, ghi l\u1ea1i c\u00e1c gi\u00e1 tr\u1ecb bi\u00ean \u0111\u1ed9 v\u00e0 pha m\u1edbi.<\/li>\n <\/ul>\n \n <h4>B\u01b0\u1edbc 3: T\u00ednh to\u00e1n tr\u1ecdng l\u01b0\u1ee3ng hi\u1ec7u ch\u1ec9nh v\u00e0 l\u1eafp \u0111\u1eb7t<\/h4>\n <p>C\u00e1c d\u1ee5ng c\u1ee5 c\u00e2n b\u1eb1ng hi\u1ec7n \u0111\u1ea1i nh\u01b0 <strong>Balanset-1A<\/strong> T\u1ef1 \u0111\u1ed9ng th\u1ef1c hi\u1ec7n ph\u00e9p tr\u1eeb vect\u01a1 c\u1ee7a vect\u01a1 rung \u0111\u1ed9ng ban \u0111\u1ea7u kh\u1ecfi vect\u01a1 thu \u0111\u01b0\u1ee3c b\u1eb1ng qu\u1ea3 c\u00e2n th\u1eed. D\u1ef1a tr\u00ean s\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y (vect\u01a1 \u1ea3nh h\u01b0\u1edfng), thi\u1ebft b\u1ecb s\u1ebd t\u00ednh to\u00e1n kh\u1ed1i l\u01b0\u1ee3ng ch\u00ednh x\u00e1c v\u00e0 g\u00f3c ch\u00ednh x\u00e1c c\u1ea7n l\u1eafp \u0111\u1eb7t qu\u1ea3 c\u00e2n hi\u1ec7u ch\u1ec9nh c\u1ed1 \u0111\u1ecbnh \u0111\u1ec3 b\u00f9 tr\u1eeb s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng ban \u0111\u1ea7u.<\/p>\n \n <p>C\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n hi\u1ec7u ch\u1ec9nh b\u1eb1ng c\u00e1ch t\u0103ng kh\u1ed1i l\u01b0\u1ee3ng (h\u00e0n t\u1ea5m kim lo\u1ea1i, l\u1eafp bu l\u00f4ng v\u1edbi \u0111ai \u1ed1c) ho\u1eb7c gi\u1ea3m kh\u1ed1i l\u01b0\u1ee3ng (khoan l\u1ed7, m\u00e0i). Vi\u1ec7c t\u0103ng kh\u1ed1i l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c \u01b0u ti\u00ean h\u01a1n v\u00ec \u0111\u00e2y l\u00e0 qu\u00e1 tr\u00ecnh c\u00f3 th\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c v\u00e0 \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t t\u1ed1t h\u01a1n.<\/p>\n \n <h4>B\u01b0\u1edbc 4: Ki\u1ec3m tra ch\u1ea1y v\u00e0 c\u00e2n b\u1eb1ng c\u1eaft<\/h4>\n <ul>\n <li>Sau khi l\u1eafp tr\u1ecdng l\u01b0\u1ee3ng hi\u1ec7u ch\u1ec9nh c\u1ed1 \u0111\u1ecbnh (v\u00e0 th\u00e1o tr\u1ecdng l\u01b0\u1ee3ng th\u1eed), ti\u1ebfn h\u00e0nh ch\u1ea1y ki\u1ec3m tra \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 k\u1ebft qu\u1ea3.<\/li>\n <li>N\u1ebfu \u0111\u1ed9 rung gi\u1ea3m nh\u01b0ng v\u1eabn v\u01b0\u1ee3t qu\u00e1 ti\u00eau chu\u1ea9n cho ph\u00e9p, c\u00e2n b\u1eb1ng c\u1eaft s\u1ebd \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n. Quy tr\u00ecnh \u0111\u01b0\u1ee3c l\u1eb7p l\u1ea1i, nh\u01b0ng k\u1ebft qu\u1ea3 ch\u1ea1y ki\u1ec3m tra hi\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m d\u1eef li\u1ec7u ban \u0111\u1ea7u. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p ti\u1ebfp c\u1eadn t\u1eebng b\u01b0\u1edbc, l\u1eb7p l\u1ea1i \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c ch\u1ea5t l\u01b0\u1ee3ng c\u00e2n b\u1eb1ng mong mu\u1ed1n.<\/li>\n <\/ul>\n\n <h3>3.4. C\u00e2n b\u1eb1ng m\u1ed9t m\u1eb7t ph\u1eb3ng hay hai m\u1eb7t ph\u1eb3ng? Ti\u00eau ch\u00ed l\u1ef1a ch\u1ecdn th\u1ef1c t\u1ebf<\/h3>\n \n <p>Vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa c\u00e2n b\u1eb1ng m\u1ed9t m\u1eb7t ph\u1eb3ng v\u00e0 hai m\u1eb7t ph\u1eb3ng l\u00e0 m\u1ed9t quy\u1ebft \u0111\u1ecbnh quan tr\u1ecdng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn to\u00e0n b\u1ed9 th\u00e0nh c\u00f4ng c\u1ee7a quy tr\u00ecnh, \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi <strong>c\u00e2n b\u1eb1ng kh\u00ed th\u1ea3i<\/strong> \u1ee9ng d\u1ee5ng.<\/p>\n \n <h4>Ti\u00eau ch\u00ed ch\u00ednh: T\u1ef7 l\u1ec7 chi\u1ec1u d\u00e0i rotor (L) so v\u1edbi \u0111\u01b0\u1eddng k\u00ednh (D).<\/h4>\n <ul>\n <li>N\u1ebfu L\/D < 0,5 v\u00e0 t\u1ed1c \u0111\u1ed9 quay nh\u1ecf h\u01a1n 1000 v\u00f2ng\/ph\u00fat, m\u1ea5t c\u00e2n b\u1eb1ng t\u0129nh th\u01b0\u1eddng chi\u1ebfm \u01b0u th\u1ebf v\u00e0 c\u00e2n b\u1eb1ng m\u1ed9t m\u1eb7t ph\u1eb3ng l\u00e0 \u0111\u1ee7.<\/li>\n <li>N\u1ebfu L\/D > 0,5 ho\u1eb7c t\u1ed1c \u0111\u1ed9 quay cao (>1000 v\u00f2ng\/ph\u00fat), s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng c\u1eb7p b\u1eaft \u0111\u1ea7u \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng, \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u00e2n b\u1eb1ng hai m\u1eb7t ph\u1eb3ng \u0111\u1ec3 lo\u1ea1i b\u1ecf.<\/li>\n <\/ul>\n \n <div class=\"tip\">\n <strong>M\u1eb9o th\u1ef1c t\u1ebf:<\/strong> N\u1ebfu trong qu\u00e1 tr\u00ecnh c\u00e2n b\u1eb1ng m\u1ed9t m\u1eb7t ph\u1eb3ng, b\u1ea1n th\u1ea5y \u0111\u1ed9 rung gi\u1ea3m t\u1ea1i m\u1ed9t \u0111i\u1ec3m t\u1ef1a (n\u01a1i th\u1ef1c hi\u1ec7n hi\u1ec7u ch\u1ec9nh) nh\u01b0ng t\u0103ng \u0111\u00e1ng k\u1ec3 t\u1ea1i \u0111i\u1ec3m t\u1ef1a \u0111\u1ed1i di\u1ec7n, th\u00ec \u0111\u00e2y l\u00e0 d\u1ea5u hi\u1ec7u r\u00f5 r\u00e0ng c\u1ee7a th\u00e0nh ph\u1ea7n m\u1ea5t c\u00e2n b\u1eb1ng c\u1eb7p m\u1ea1nh. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, h\u00e3y d\u1eebng ngay vi\u1ec7c hi\u1ec7u ch\u1ec9nh m\u1ed9t m\u1eb7t ph\u1eb3ng v\u00e0 chuy\u1ec3n sang c\u00e2n b\u1eb1ng hai m\u1eb7t ph\u1eb3ng.\n <\/div>\n\n <h3>3.5. \u0110\u1eb7c \u0111i\u1ec3m c\u00e2n b\u1eb1ng c\u1ee7a qu\u1ea1t treo<\/h3>\n \n <p>Qu\u1ea1t h\u00fat lo\u1ea1i treo, trong \u0111\u00f3 b\u00e1nh xe l\u00e0m vi\u1ec7c (c\u00e1nh qu\u1ea1t) n\u1eb1m ngo\u00e0i gi\u00e1 \u0111\u1ee1 \u1ed5 tr\u1ee5c, c\u00f3 \u0111\u1ed9 ph\u1ee9c t\u1ea1p \u0111\u1eb7c bi\u1ec7t khi c\u00e2n b\u1eb1ng.<\/p>\n \n <p><strong>V\u1ea5n \u0111\u1ec1:<\/strong> Nh\u1eefng h\u1ec7 th\u1ed1ng nh\u01b0 v\u1eady v\u1ed1n kh\u00f4ng \u1ed5n \u0111\u1ecbnh v\u1ec1 m\u1eb7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc v\u00e0 c\u1ef1c k\u1ef3 nh\u1ea1y c\u1ea3m v\u1edbi s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 lo\u1ea1i m\u1ea5t c\u00e2n b\u1eb1ng ki\u1ec3u c\u1eb7p. \u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng bi\u1ec3u hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng rung \u0111\u1ed9ng tr\u1ee5c cao b\u1ea5t th\u01b0\u1eddng.<\/p>\n \n <p><strong>Bi\u1ebfn ch\u1ee9ng:<\/strong> Vi\u1ec7c \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hai m\u1eb7t ph\u1eb3ng ti\u00eau chu\u1ea9n cho r\u00f4-to treo th\u01b0\u1eddng d\u1eabn \u0111\u1ebfn k\u1ebft qu\u1ea3 kh\u00f4ng nh\u01b0 mong mu\u1ed1n ho\u1eb7c \u0111\u00f2i h\u1ecfi ph\u1ea3i l\u1eafp \u0111\u1eb7t c\u00e1c qu\u1ea3 c\u00e2n hi\u1ec7u ch\u1ec9nh c\u00f3 k\u00edch th\u01b0\u1edbc kh\u00f4ng ph\u00f9 h\u1ee3p. Ph\u1ea3n \u1ee9ng c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u1ed1i v\u1edbi qu\u1ea3 c\u00e2n th\u1eed nghi\u1ec7m c\u00f3 th\u1ec3 kh\u00f4ng tr\u1ef1c quan: v\u00ed d\u1ee5, vi\u1ec7c l\u1eafp qu\u1ea3 c\u00e2n v\u00e0o c\u00e1nh qu\u1ea1t c\u00f3 th\u1ec3 g\u00e2y ra thay \u0111\u1ed5i rung \u0111\u1ed9ng l\u1edbn h\u01a1n \u1edf v\u1ecb tr\u00ed \u0111\u1ee1 xa (t\u1ea1i \u0111\u1ed9ng c\u01a1) so v\u1edbi v\u1ecb tr\u00ed g\u1ea7n.<\/p>\n \n <p><strong>C\u00e1c khuy\u1ebfn ngh\u1ecb:<\/strong> Vi\u1ec7c c\u00e2n b\u1eb1ng qu\u1ea1t h\u00fat treo \u0111\u00f2i h\u1ecfi nhi\u1ec1u kinh nghi\u1ec7m chuy\u00ean m\u00f4n v\u00e0 hi\u1ec3u bi\u1ebft v\u1ec1 \u0111\u1ed9ng l\u1ef1c h\u1ecdc. Th\u01b0\u1eddng c\u1ea7n s\u1eed d\u1ee5ng c\u00e1c m\u00f4-\u0111un ph\u1ea7n m\u1ec1m chuy\u00ean d\u1ee5ng trong m\u00e1y ph\u00e2n t\u00edch rung \u0111\u1ed9ng \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p t\u00e1ch l\u1ef1c t\u0129nh\/l\u1ef1c k\u00e9p \u0111\u1ec3 t\u00ednh to\u00e1n kh\u1ed1i l\u01b0\u1ee3ng hi\u1ec7u ch\u1ec9nh ch\u00ednh x\u00e1c h\u01a1n.<\/p>\n\n <h2>Ph\u1ea7n 4: C\u00e1c tr\u01b0\u1eddng h\u1ee3p ph\u1ee9c t\u1ea1p v\u00e0 k\u1ef9 thu\u1eadt chuy\u00ean nghi\u1ec7p<\/h2>\n \n <p>Ngay c\u1ea3 khi tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t quy tr\u00ecnh, c\u00e1c chuy\u00ean gia v\u1eabn c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i nh\u1eefng t\u00ecnh hu\u1ed1ng m\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ti\u1ebfp c\u1eadn ti\u00eau chu\u1ea9n kh\u00f4ng mang l\u1ea1i k\u1ebft qu\u1ea3. Nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0y \u0111\u00f2i h\u1ecfi ph\u00e2n t\u00edch s\u00e2u h\u01a1n v\u00e0 \u00e1p d\u1ee5ng k\u1ef9 thu\u1eadt kh\u00f4ng chu\u1ea9n.<\/p>\n\n <h3>4.1. Nh\u1eefng l\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch tr\u00e1nh ch\u00fang<\/h3>\n \n <h4>Sai l\u1ea7m 1: Ch\u1ea9n \u0111o\u00e1n kh\u00f4ng ch\u00ednh x\u00e1c<\/h4>\n <p>Sai l\u1ea7m th\u01b0\u1eddng g\u1eb7p v\u00e0 t\u1ed1n k\u00e9m nh\u1ea5t l\u00e0 c\u1ed1 g\u1eafng c\u00e2n b\u1eb1ng \u0111\u1ed9 rung do sai l\u1ec7ch, l\u1ecfng l\u1ebbo v\u1ec1 m\u1eb7t c\u01a1 h\u1ecdc ho\u1eb7c c\u1ed9ng h\u01b0\u1edfng.<\/p>\n <p><strong>Gi\u1ea3i ph\u00e1p:<\/strong> Lu\u00f4n b\u1eaft \u0111\u1ea7u b\u1eb1ng ph\u00e2n t\u00edch rung \u0111\u1ed9ng \u0111\u1ea7y \u0111\u1ee7 (ph\u00e2n t\u00edch ph\u1ed5 v\u00e0 pha). N\u1ebfu ph\u1ed5 kh\u00f4ng cho th\u1ea5y r\u00f5 r\u00e0ng s\u1ef1 chi\u1ebfm \u01b0u th\u1ebf c\u1ee7a \u0111\u1ec9nh 1x nh\u01b0ng c\u00f3 c\u00e1c \u0111\u1ec9nh \u0111\u00e1ng k\u1ec3 \u1edf c\u00e1c t\u1ea7n s\u1ed1 kh\u00e1c, th\u00ec kh\u00f4ng th\u1ec3 b\u1eaft \u0111\u1ea7u c\u00e2n b\u1eb1ng cho \u0111\u1ebfn khi nguy\u00ean nh\u00e2n ch\u00ednh \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf.<\/p>\n \n <h4>Sai l\u1ea7m 2: B\u1ecf qua giai \u0111o\u1ea1n chu\u1ea9n b\u1ecb<\/h4>\n <p>B\u1ecf qua giai \u0111o\u1ea1n v\u1ec7 sinh c\u00e1nh qu\u1ea1t ho\u1eb7c ki\u1ec3m tra \u0111\u1ed9 si\u1ebft ch\u1eb7t k\u1ebft n\u1ed1i bu l\u00f4ng.<\/p>\n <p><strong>Gi\u1ea3i ph\u00e1p:<\/strong> Tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t "th\u1ee9 b\u1eadc can thi\u1ec7p" \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 trong ph\u1ea7n 3.1. V\u1ec7 sinh v\u00e0 si\u1ebft ch\u1eb7t kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ef1a ch\u1ecdn m\u00e0 l\u00e0 nh\u1eefng b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean b\u1eaft bu\u1ed9c.<\/p>\n \n <h4>Sai l\u1ea7m 3: Th\u00e1o b\u1ecf to\u00e0n b\u1ed9 t\u1ea1 c\u00e2n b\u1eb1ng c\u0169<\/h4>\n <p>H\u00e0nh \u0111\u1ed9ng n\u00e0y ph\u00e1 h\u1ee7y k\u1ebft qu\u1ea3 c\u00e2n b\u1eb1ng tr\u01b0\u1edbc \u0111\u00f3 (c\u00f3 th\u1ec3 l\u00e0 c\u1ee7a nh\u00e0 m\u00e1y) v\u00e0 th\u01b0\u1eddng l\u00e0m c\u00f4ng vi\u1ec7c tr\u1edf n\u00ean ph\u1ee9c t\u1ea1p h\u01a1n \u0111\u00e1ng k\u1ec3 v\u00ec s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng ban \u0111\u1ea7u c\u00f3 th\u1ec3 tr\u1edf n\u00ean r\u1ea5t l\u1edbn.<\/p>\n <p><strong>Gi\u1ea3i ph\u00e1p:<\/strong> Kh\u00f4ng bao gi\u1edd th\u00e1o b\u1ecf to\u00e0n b\u1ed9 tr\u1ecdng l\u01b0\u1ee3ng m\u00e0 kh\u00f4ng c\u00f3 l\u00fd do ch\u00ednh \u0111\u00e1ng. N\u1ebfu c\u00e1nh qu\u1ea1t \u0111\u00e3 t\u00edch t\u1ee5 nhi\u1ec1u tr\u1ecdng l\u01b0\u1ee3ng nh\u1ecf t\u1eeb c\u00e1c l\u1ea7n c\u00e2n b\u1eb1ng tr\u01b0\u1edbc, b\u1ea1n c\u00f3 th\u1ec3 th\u00e1o ch\u00fang ra, nh\u01b0ng sau \u0111\u00f3 k\u1ebft h\u1ee3p t\u1ed5ng vect\u01a1 c\u1ee7a ch\u00fang th\u00e0nh m\u1ed9t tr\u1ecdng l\u01b0\u1ee3ng t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u00e0 l\u1eafp \u0111\u1eb7t l\u1ea1i.<\/p>\n \n <h4>Sai l\u1ea7m 4: Kh\u00f4ng ki\u1ec3m tra kh\u1ea3 n\u0103ng l\u1eb7p l\u1ea1i c\u1ee7a d\u1eef li\u1ec7u<\/h4>\n <p>B\u1eaft \u0111\u1ea7u c\u00e2n b\u1eb1ng v\u1edbi bi\u00ean \u0111\u1ed9 v\u00e0 pha ban \u0111\u1ea7u kh\u00f4ng \u1ed5n \u0111\u1ecbnh.<\/p>\n <p><strong>Gi\u1ea3i ph\u00e1p:<\/strong> Tr\u01b0\u1edbc khi l\u1eafp \u0111\u1eb7t qu\u1ea3 c\u00e2n th\u1eed, h\u00e3y th\u1ef1c hi\u1ec7n 2-3 l\u1ea7n kh\u1edfi \u0111\u1ed9ng ki\u1ec3m tra. N\u1ebfu bi\u00ean \u0111\u1ed9 ho\u1eb7c pha "tr\u00f4i" t\u1eeb \u0111i\u1ec3m b\u1eaft \u0111\u1ea7u n\u00e0y sang \u0111i\u1ec3m b\u1eaft \u0111\u1ea7u kh\u00e1c, \u0111i\u1ec1u n\u00e0y cho th\u1ea5y c\u00f3 v\u1ea5n \u0111\u1ec1 ph\u1ee9c t\u1ea1p h\u01a1n (c\u1ed9ng h\u01b0\u1edfng, \u0111\u1ed9 cong nhi\u1ec7t, m\u1ea5t \u1ed5n \u0111\u1ecbnh kh\u00ed \u0111\u1ed9ng h\u1ecdc). Vi\u1ec7c c\u00e2n b\u1eb1ng trong nh\u1eefng \u0111i\u1ec1u ki\u1ec7n nh\u01b0 v\u1eady s\u1ebd kh\u00f4ng mang l\u1ea1i k\u1ebft qu\u1ea3 \u1ed5n \u0111\u1ecbnh.<\/p>\n\n <h3>4.2. C\u00e2n b\u1eb1ng g\u1ea7n c\u1ed9ng h\u01b0\u1edfng: Khi pha n\u1eb1m<\/h3>\n \n <p><strong>V\u1ea5n \u0111\u1ec1:<\/strong> Khi t\u1ed1c \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a qu\u1ea1t h\u00fat g\u1ea7n b\u1eb1ng m\u1ed9t trong c\u00e1c t\u1ea7n s\u1ed1 rung \u0111\u1ed9ng t\u1ef1 nhi\u00ean c\u1ee7a h\u1ec7 th\u1ed1ng (c\u1ed9ng h\u01b0\u1edfng), g\u00f3c pha tr\u1edf n\u00ean c\u1ef1c k\u1ef3 kh\u00f4ng \u1ed5n \u0111\u1ecbnh v\u00e0 r\u1ea5t nh\u1ea1y c\u1ea3m v\u1edbi nh\u1eefng bi\u1ebfn \u0111\u1ed9ng t\u1ed1c \u0111\u1ed9 nh\u1ecf nh\u1ea5t. \u0110i\u1ec1u n\u00e0y khi\u1ebfn c\u00e1c ph\u00e9p t\u00ednh vect\u01a1 ti\u00eau chu\u1ea9n d\u1ef1a tr\u00ean ph\u00e9p \u0111o pha tr\u1edf n\u00ean kh\u00f4ng ch\u00ednh x\u00e1c ho\u1eb7c ho\u00e0n to\u00e0n b\u1ea5t kh\u1ea3 thi.<\/p>\n \n <p><strong>Gi\u1ea3i ph\u00e1p: Ph\u01b0\u01a1ng ph\u00e1p b\u1ed1n l\u1ea7n ch\u1ea1y<\/strong><\/p>\n <p><strong>N\u01b0\u1edbc hoa:<\/strong> Ph\u01b0\u01a1ng ph\u00e1p c\u00e2n b\u1eb1ng \u0111\u1ed9c \u0111\u00e1o n\u00e0y kh\u00f4ng s\u1eed d\u1ee5ng ph\u00e9p \u0111o pha. T\u00ednh to\u00e1n tr\u1ecdng l\u01b0\u1ee3ng hi\u1ec7u ch\u1ec9nh \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n ho\u00e0n to\u00e0n d\u1ef1a tr\u00ean s\u1ef1 thay \u0111\u1ed5i bi\u00ean \u0111\u1ed9 rung.<\/p>\n \n <p><strong>Qu\u00e1 tr\u00ecnh:<\/strong> Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y y\u00eau c\u1ea7u b\u1ed1n l\u1ea7n ch\u1ea1y tu\u1ea7n t\u1ef1:<\/p>\n <ol>\n <li>\u0110o bi\u00ean \u0111\u1ed9 rung \u0111\u1ed9ng ban \u0111\u1ea7u<\/li>\n <li>\u0110o bi\u00ean \u0111\u1ed9 v\u1edbi tr\u1ecdng l\u01b0\u1ee3ng th\u1eed \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t \u1edf v\u1ecb tr\u00ed 0\u00b0 c\u00f3 \u0111i\u1ec1u ki\u1ec7n<\/li>\n <li>\u0110o bi\u00ean \u0111\u1ed9 v\u1edbi c\u00f9ng tr\u1ecdng l\u01b0\u1ee3ng di chuy\u1ec3n \u0111\u1ebfn 120\u00b0<\/li>\n <li>\u0110o bi\u00ean \u0111\u1ed9 v\u1edbi c\u00f9ng tr\u1ecdng l\u01b0\u1ee3ng di chuy\u1ec3n \u0111\u1ebfn 240\u00b0<\/li>\n <\/ol>\n \n <p>D\u1ef1a tr\u00ean b\u1ed1n gi\u00e1 tr\u1ecb bi\u00ean \u0111\u1ed9 thu \u0111\u01b0\u1ee3c, gi\u1ea3i ph\u00e1p \u0111\u1ed3 h\u1ecda (ph\u01b0\u01a1ng ph\u00e1p giao \u0111i\u1ec3m \u0111\u01b0\u1eddng tr\u00f2n) \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng ho\u1eb7c th\u1ef1c hi\u1ec7n t\u00ednh to\u00e1n to\u00e1n h\u1ecdc, cho ph\u00e9p x\u00e1c \u0111\u1ecbnh kh\u1ed1i l\u01b0\u1ee3ng c\u1ea7n thi\u1ebft v\u00e0 g\u00f3c l\u1eafp \u0111\u1eb7t c\u1ee7a qu\u1ea3 c\u00e2n hi\u1ec7u ch\u1ec9nh.<\/p>\n\n <h3>4.3. Khi v\u1ea5n \u0111\u1ec1 kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ef1 c\u00e2n b\u1eb1ng: L\u1ef1c k\u1ebft c\u1ea5u v\u00e0 l\u1ef1c kh\u00ed \u0111\u1ed9ng h\u1ecdc<\/h3>\n \n <h4>C\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 c\u1ea5u tr\u00fac:<\/h4>\n <p>N\u1ec1n m\u00f3ng y\u1ebfu ho\u1eb7c n\u1ee9t, gi\u00e1 \u0111\u1ee1 l\u1ecfng l\u1ebbo c\u00f3 th\u1ec3 c\u1ed9ng h\u01b0\u1edfng v\u1edbi t\u1ea7n s\u1ed1 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a qu\u1ea1t h\u00fat, l\u00e0m t\u0103ng \u0111\u1ed9 rung l\u00ean nhi\u1ec1u l\u1ea7n.<\/p>\n <p><strong>Ch\u1ea9n \u0111o\u00e1n:<\/strong> \u0110\u1ec3 x\u00e1c \u0111\u1ecbnh t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean c\u1ee7a c\u1ea5u tr\u00fac \u1edf tr\u1ea1ng th\u00e1i t\u1eaft, th\u1eed nghi\u1ec7m va \u0111\u1eadp (bump test) \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng. Th\u1eed nghi\u1ec7m n\u00e0y \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng b\u00faa v\u00e0 m\u00e1y \u0111o gia t\u1ed1c \u0111\u1eb7c bi\u1ec7t. N\u1ebfu m\u1ed9t trong c\u00e1c t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean t\u00ecm \u0111\u01b0\u1ee3c g\u1ea7n v\u1edbi t\u1ea7n s\u1ed1 quay ho\u1ea1t \u0111\u1ed9ng, th\u00ec v\u1ea5n \u0111\u1ec1 th\u1ef1c s\u1ef1 n\u1eb1m \u1edf c\u1ed9ng h\u01b0\u1edfng.<\/p>\n \n <h4>L\u1ef1c kh\u00ed \u0111\u1ed9ng h\u1ecdc:<\/h4>\n <p>S\u1ef1 nhi\u1ec5u lo\u1ea1n lu\u1ed3ng kh\u00f4ng kh\u00ed \u1edf \u0111\u1ea7u v\u00e0o (do ch\u01b0\u1edbng ng\u1ea1i v\u1eadt ho\u1eb7c van \u0111i\u1ec1u ti\u1ebft \u0111\u00f3ng qu\u00e1 m\u1ee9c, c\u00f2n g\u1ecdi l\u00e0 "qu\u1ea1t thi\u1ebfu kh\u00f4ng kh\u00ed") ho\u1eb7c \u0111\u1ea7u ra c\u00f3 th\u1ec3 g\u00e2y ra rung \u0111\u1ed9ng t\u1ea7n s\u1ed1 th\u1ea5p, th\u01b0\u1eddng kh\u00f4ng \u1ed5n \u0111\u1ecbnh, kh\u00f4ng li\u00ean quan \u0111\u1ebfn m\u1ea5t c\u00e2n b\u1eb1ng kh\u1ed1i l\u01b0\u1ee3ng.<\/p>\n <p><strong>Ch\u1ea9n \u0111o\u00e1n:<\/strong> Ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m v\u1edbi t\u1ea3i tr\u1ecdng kh\u00ed \u0111\u1ed9ng h\u1ecdc thay \u0111\u1ed5i \u1edf t\u1ed1c \u0111\u1ed9 quay kh\u00f4ng \u0111\u1ed5i (v\u00ed d\u1ee5, b\u1eb1ng c\u00e1ch m\u1edf\/\u0111\u00f3ng van \u0111i\u1ec1u ti\u1ebft d\u1ea7n d\u1ea7n). N\u1ebfu m\u1ee9c \u0111\u1ed9 rung \u0111\u1ed9ng thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3, b\u1ea3n ch\u1ea5t c\u1ee7a rung \u0111\u1ed9ng c\u00f3 th\u1ec3 l\u00e0 do kh\u00ed \u0111\u1ed9ng h\u1ecdc.<\/p>\n\n <h3>4.4. Ph\u00e2n t\u00edch v\u00ed d\u1ee5 th\u1ef1c t\u1ebf (Nghi\u00ean c\u1ee9u t\u00ecnh hu\u1ed1ng)<\/h3>\n \n <h4>V\u00ed d\u1ee5 1 (C\u1ed9ng h\u01b0\u1edfng):<\/h4>\n <p>Trong m\u1ed9t tr\u01b0\u1eddng h\u1ee3p \u0111\u01b0\u1ee3c ghi nh\u1eadn, vi\u1ec7c c\u00e2n b\u1eb1ng qu\u1ea1t cung c\u1ea5p b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p ti\u00eau chu\u1ea9n kh\u00f4ng mang l\u1ea1i k\u1ebft qu\u1ea3 do c\u00e1c ch\u1ec9 s\u1ed1 pha c\u1ef1c k\u1ef3 kh\u00f4ng \u1ed5n \u0111\u1ecbnh. Ph\u00e2n t\u00edch cho th\u1ea5y t\u1ed1c \u0111\u1ed9 v\u1eadn h\u00e0nh (29 Hz) r\u1ea5t g\u1ea7n v\u1edbi t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean c\u1ee7a c\u00e1nh qu\u1ea1t (28 Hz). \u00c1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p b\u1ed1n l\u1ea7n ch\u1ea1y, \u0111\u1ed9c l\u1eadp v\u1edbi pha, \u0111\u00e3 cho ph\u00e9p gi\u1ea3m rung \u0111\u1ed9ng th\u00e0nh c\u00f4ng xu\u1ed1ng m\u1ee9c ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c, cung c\u1ea5p gi\u1ea3i ph\u00e1p t\u1ea1m th\u1eddi cho \u0111\u1ebfn khi thay th\u1ebf qu\u1ea1t b\u1eb1ng lo\u1ea1i \u0111\u00e1ng tin c\u1eady h\u01a1n.<\/p>\n \n <h4>V\u00ed d\u1ee5 2 (Nhi\u1ec1u l\u1ed7i):<\/h4>\n <p>Ph\u00e2n t\u00edch \u0111\u1ed9 rung c\u1ee7a qu\u1ea1t h\u00fat t\u1ea1i nh\u00e0 m\u00e1y \u0111\u01b0\u1eddng cho th\u1ea5y nh\u1eefng v\u1ea5n \u0111\u1ec1 ph\u1ee9c t\u1ea1p. M\u1ed9t ph\u1ed5 qu\u1ea1t cho th\u1ea5y \u0111\u1ed9 l\u1ec7ch g\u00f3c (c\u00e1c \u0111\u1ec9nh 1x v\u00e0 2x cao theo h\u01b0\u1edbng tr\u1ee5c), trong khi m\u1ed9t ph\u1ed5 kh\u00e1c cho th\u1ea5y \u0111\u1ed9 l\u1ecfng l\u1ebbo c\u01a1 h\u1ecdc (c\u00e1c s\u00f3ng h\u00e0i \u0111\u1ec1u 1x, 2x, 3x). \u0110i\u1ec1u n\u00e0y cho th\u1ea5y t\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c lo\u1ea1i b\u1ecf khuy\u1ebft t\u1eadt tu\u1ea7n t\u1ef1: tr\u01b0\u1edbc ti\u00ean c\u1ea7n c\u0103n ch\u1ec9nh v\u00e0 si\u1ebft ch\u1eb7t, sau \u0111\u00f3, n\u1ebfu c\u1ea7n thi\u1ebft, m\u1edbi ti\u1ebfn h\u00e0nh c\u00e2n b\u1eb1ng.<\/p>\n\n <h2>M\u1ee5c 5: Ti\u00eau chu\u1ea9n, Dung sai v\u00e0 B\u1ea3o tr\u00ec Ph\u00f2ng ng\u1eeba<\/h2>\n \n <p>Giai \u0111o\u1ea1n cu\u1ed1i c\u00f9ng c\u1ee7a b\u1ea5t k\u1ef3 c\u00f4ng vi\u1ec7c k\u1ef9 thu\u1eadt n\u00e0o l\u00e0 \u0111\u00e1nh gi\u00e1 ch\u1ea5t l\u01b0\u1ee3ng theo c\u00e1c y\u00eau c\u1ea7u quy \u0111\u1ecbnh v\u00e0 ph\u00e1t tri\u1ec3n chi\u1ebfn l\u01b0\u1ee3c \u0111\u1ec3 duy tr\u00ec thi\u1ebft b\u1ecb \u1edf t\u00ecnh tr\u1ea1ng ph\u00f9 h\u1ee3p trong th\u1eddi gian d\u00e0i.<\/p>\n\n <h3>5.1. T\u1ed5ng quan v\u1ec1 c\u00e1c ti\u00eau chu\u1ea9n ch\u00ednh (ISO)<\/h3>\n \n <p>M\u1ed9t s\u1ed1 ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 ch\u1ea5t l\u01b0\u1ee3ng c\u00e2n b\u1eb1ng v\u00e0 t\u00ecnh tr\u1ea1ng rung c\u1ee7a qu\u1ea1t h\u00fat.<\/p>\n \n <h4>Ti\u00eau chu\u1ea9n ISO 14694:2003:<\/h4>\n <p>Ti\u00eau chu\u1ea9n ch\u00ednh cho qu\u1ea1t c\u00f4ng nghi\u1ec7p. Thi\u1ebft l\u1eadp c\u00e1c y\u00eau c\u1ea7u c\u00e2n b\u1eb1ng ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 m\u1ee9c \u0111\u1ed9 rung t\u1ed1i \u0111a cho ph\u00e9p t\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i \u1ee9ng d\u1ee5ng qu\u1ea1t (BV-1, BV-2, BV-3, v.v.), c\u00f4ng su\u1ea5t v\u00e0 lo\u1ea1i l\u1eafp \u0111\u1eb7t.<\/p>\n \n <h4>Ti\u00eau chu\u1ea9n ISO 1940-1:2003:<\/h4>\n <p>Ti\u00eau chu\u1ea9n n\u00e0y x\u00e1c \u0111\u1ecbnh c\u00e1c c\u1ea5p ch\u1ea5t l\u01b0\u1ee3ng c\u00e2n b\u1eb1ng (G) cho rotor c\u1ee9ng. C\u1ea5p ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1eb7c tr\u01b0ng cho \u0111\u1ed9 m\u1ea5t c\u00e2n b\u1eb1ng d\u01b0 cho ph\u00e9p. \u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft qu\u1ea1t h\u00fat c\u00f4ng nghi\u1ec7p, c\u00e1c c\u1ea5p sau \u0111\u00e2y \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng:<\/p>\n <ul>\n <li><strong>G6.3:<\/strong> Ch\u1ea5t l\u01b0\u1ee3ng c\u00f4ng nghi\u1ec7p ti\u00eau chu\u1ea9n, ph\u00f9 h\u1ee3p v\u1edbi h\u1ea7u h\u1ebft c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p n\u00f3i chung.<\/li>\n <li><strong>G2.5:<\/strong> Ch\u1ea5t l\u01b0\u1ee3ng n\u00e2ng cao, c\u1ea7n thi\u1ebft cho qu\u1ea1t h\u00fat t\u1ed1c \u0111\u1ed9 cao ho\u1eb7c qu\u1ea1t h\u00fat \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng, n\u01a1i c\u00f3 y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 rung nghi\u00eam ng\u1eb7t h\u01a1n.<\/li>\n <\/ul>\n \n <h4>Ti\u00eau chu\u1ea9n ISO 10816-3:2009:<\/h4>\n <p>\u0110i\u1ec1u ch\u1ec9nh vi\u1ec7c \u0111\u00e1nh gi\u00e1 t\u00ecnh tr\u1ea1ng rung \u0111\u1ed9ng c\u1ee7a m\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p d\u1ef1a tr\u00ean c\u00e1c ph\u00e9p \u0111o tr\u00ean c\u00e1c b\u1ed9 ph\u1eadn kh\u00f4ng quay (v\u00ed d\u1ee5: v\u1ecf \u1ed5 tr\u1ee5c). Ti\u00eau chu\u1ea9n gi\u1edbi thi\u1ec7u b\u1ed1n v\u00f9ng \u0111i\u1ec1u ki\u1ec7n:<\/p>\n <ul>\n <li><strong>Khu A:<\/strong> "T\u1ed1t" (thi\u1ebft b\u1ecb m\u1edbi)<\/li>\n <li><strong>Khu B:<\/strong> "\u0110\u1ea1t y\u00eau c\u1ea7u" (cho ph\u00e9p ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng gi\u1edbi h\u1ea1n)<\/li>\n <li><strong>Khu C:<\/strong> "C\u00f3 th\u1ec3 ch\u1ea5p nh\u1eadn trong th\u1eddi gian c\u00f3 h\u1ea1n" (c\u1ea7n x\u00e1c \u0111\u1ecbnh nguy\u00ean nh\u00e2n v\u00e0 lo\u1ea1i b\u1ecf)<\/li>\n <li><strong>Khu D:<\/strong> "Kh\u00f4ng th\u1ec3 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c" (rung \u0111\u1ed9ng c\u00f3 th\u1ec3 g\u00e2y h\u01b0 h\u1ecfng)<\/li>\n <\/ul>\n \n <h4>Ti\u00eau chu\u1ea9n ISO 14695:2003:<\/h4>\n <p>Ti\u00eau chu\u1ea9n n\u00e0y thi\u1ebft l\u1eadp c\u00e1c ph\u01b0\u01a1ng ph\u00e1p v\u00e0 \u0111i\u1ec1u ki\u1ec7n th\u1ed1ng nh\u1ea5t \u0111\u1ec3 \u0111o \u0111\u1ed9 rung c\u1ee7a qu\u1ea1t c\u00f4ng nghi\u1ec7p, c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng so s\u00e1nh v\u00e0 t\u00e1i t\u1ea1o c\u00e1c k\u1ebft qu\u1ea3 thu \u0111\u01b0\u1ee3c t\u1ea1i c\u00e1c th\u1eddi \u0111i\u1ec3m kh\u00e1c nhau v\u00e0 tr\u00ean c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c nhau.<\/p>\n\n <h3>5.2. Chi\u1ebfn l\u01b0\u1ee3c d\u00e0i h\u1ea1n: T\u00edch h\u1ee3p v\u00e0o Ch\u01b0\u01a1ng tr\u00ecnh B\u1ea3o tr\u00ec D\u1ef1 \u0111o\u00e1n<\/h3>\n \n <p><strong>C\u00e2n b\u1eb1ng kh\u00ed th\u1ea3i<\/strong> kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c coi l\u00e0 ho\u1ea1t \u0111\u1ed9ng s\u1eeda ch\u1eefa m\u1ed9t l\u1ea7n. \u0110\u00e2y l\u00e0 m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o tr\u00ec d\u1ef1 \u0111o\u00e1n hi\u1ec7n \u0111\u1ea1i.<\/p>\n \n <p>Vi\u1ec7c tri\u1ec3n khai gi\u00e1m s\u00e1t rung \u0111\u1ed9ng th\u01b0\u1eddng xuy\u00ean (v\u00ed d\u1ee5, th\u00f4ng qua thu th\u1eadp d\u1eef li\u1ec7u tuy\u1ebfn \u0111\u01b0\u1eddng b\u1eb1ng m\u00e1y ph\u00e2n t\u00edch di \u0111\u1ed9ng) cho ph\u00e9p theo d\u00f5i t\u00ecnh tr\u1ea1ng thi\u1ebft b\u1ecb theo th\u1eddi gian. Ph\u00e2n t\u00edch xu h\u01b0\u1edbng, \u0111\u1eb7c bi\u1ec7t l\u00e0 s\u1ef1 t\u0103ng d\u1ea7n bi\u00ean \u0111\u1ed9 rung \u0111\u1ed9ng \u1edf t\u1ea7n s\u1ed1 ch\u1ea1y 1x, l\u00e0 m\u1ed9t ch\u1ec9 b\u00e1o \u0111\u00e1ng tin c\u1eady v\u1ec1 s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng \u0111ang ph\u00e1t tri\u1ec3n.<\/p>\n \n <p>C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y cho ph\u00e9p:<\/p>\n <ul>\n <li>L\u00ean k\u1ebf ho\u1ea1ch c\u00e2n b\u1eb1ng tr\u01b0\u1edbc, tr\u01b0\u1edbc khi m\u1ee9c \u0111\u1ed9 rung \u0111\u1ed9ng \u0111\u1ea1t \u0111\u1ebfn gi\u00e1 tr\u1ecb quan tr\u1ecdng theo ti\u00eau chu\u1ea9n ISO 10816-3.<\/li>\n <li>Ng\u0103n ng\u1eeba h\u01b0 h\u1ecfng th\u1ee9 c\u1ea5p cho \u1ed5 tr\u1ee5c, kh\u1edbp n\u1ed1i v\u00e0 c\u1ea5u tr\u00fac h\u1ed7 tr\u1ee3 ch\u1eafc ch\u1eafn x\u1ea3y ra trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh k\u00e9o d\u00e0i v\u1edbi \u0111\u1ed9 rung qu\u00e1 m\u1ee9c.<\/li>\n <li>Lo\u1ea1i b\u1ecf th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng kh\u1ea9n c\u1ea5p kh\u00f4ng mong mu\u1ed1n b\u1eb1ng c\u00e1ch chuy\u1ec3n \u0111\u1ed5i c\u00f4ng vi\u1ec7c s\u1eeda ch\u1eefa sang danh m\u1ee5c ph\u00f2ng ng\u1eeba \u0111\u00e3 l\u00ean k\u1ebf ho\u1ea1ch.<\/li>\n <\/ul>\n \n <p>Vi\u1ec7c t\u1ea1o ra c\u01a1 s\u1edf d\u1eef li\u1ec7u \u0111i\u1ec7n t\u1eed v\u1ec1 t\u00ecnh tr\u1ea1ng rung c\u1ee7a thi\u1ebft b\u1ecb ch\u00ednh v\u00e0 ph\u00e2n t\u00edch xu h\u01b0\u1edbng th\u01b0\u1eddng xuy\u00ean s\u1ebd t\u1ea1o c\u01a1 s\u1edf cho vi\u1ec7c \u0111\u01b0a ra c\u00e1c quy\u1ebft \u0111\u1ecbnh b\u1ea3o tr\u00ec hi\u1ec7u qu\u1ea3 v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt v\u00e0 kinh t\u1ebf, t\u1eeb \u0111\u00f3 t\u0103ng \u0111\u1ed9 tin c\u1eady v\u00e0 hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t t\u1ed5ng th\u1ec3.<\/p>\n\n <div class=\"warning\">\n <strong>Ph\u1ea7n k\u1ebft lu\u1eadn:<\/strong> Chuy\u00ean nghi\u1ec7p <strong>c\u00e2n b\u1eb1ng kh\u00ed th\u1ea3i<\/strong> s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb hi\u1ec7n \u0111\u1ea1i nh\u01b0 <strong>Balanset-1A<\/strong> \u0111\u00f2i h\u1ecfi ph\u01b0\u01a1ng ph\u00e1p ti\u1ebfp c\u1eadn c\u00f3 h\u1ec7 th\u1ed1ng, k\u1ebft h\u1ee3p ki\u1ebfn th\u1ee9c l\u00fd thuy\u1ebft, k\u1ef9 n\u0103ng th\u1ef1c h\u00e0nh v\u00e0 quy tr\u00ecnh ch\u1ea9n \u0111o\u00e1n ph\u00f9 h\u1ee3p. Th\u00e0nh c\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ef1 chu\u1ea9n b\u1ecb k\u1ef9 l\u01b0\u1ee1ng, x\u00e1c \u0111\u1ecbnh \u0111\u00fang v\u1ea5n \u0111\u1ec1 v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n v\u00e0 quy tr\u00ecnh \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp.\n <\/div>\n <\/div>\n<\/body>\n<\/html><\/div><\/div><div id=\"panel-800-0-0-2\" class=\"so-panel widget widget_sow-slider\" data-index=\"2\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-slider so-widget-sow-slider-default-6d39609536fd-800\"\n\t\t\t\n\t\t>\t\t\t\t<div class=\"sow-slider-base\" style=\"display: none\" tabindex=\"0\">\n\t\t\t\t\t<ul\n\t\t\t\t\tclass=\"sow-slider-images\"\n\t\t\t\t\tdata-settings=\"{"pagination":true,"speed":800,"timeout":8000,"paused":false,"pause_on_hover":false,"swipe":true,"nav_always_show_desktop":"","nav_always_show_mobile":"","breakpoint":"780px","unmute":false,"anchor":null}\"\n\t\t\t\t\t\t\t\t\t\tdata-anchor-id=\"\"\n\t\t\t\t>\t\t<li class=\"sow-slider-image\" style=\"visibility: visible;\" >\n\t\t\t\t\t\t<div class=\"sow-slider-image-container\">\n\t\t\t\t<div class=\"sow-slider-image-wrapper\" style=\"max-width: 1280px\">\n\t\t\t\t\t\t\t\t\t\t<div class=\"sow-slider-image-foreground-wrapper\">\n\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"720\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2017\/12\/IMG_20170828_140407-e1558698106789.webp\" class=\"sow-slider-foreground-image\" alt=\"C\u00e2n b\u1eb1ng qu\u1ea1t h\u00fat.\" style=\"\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2017\/12\/IMG_20170828_140407-e1558698106789.webp 1280w, https:\/\/vibromera.eu\/wp-content\/uploads\/2017\/12\/IMG_20170828_140407-e1558698106789-600x338.webp 600w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<\/li>\n\t\t<\/ul>\t\t\t\t<ol class=\"sow-slider-pagination\">\n\t\t\t\t\t\t\t\t\t\t\t<li><a href=\"#\" data-goto=\"0\" aria-label=\"Hi\u1ec3n th\u1ecb slide 1\"><\/a><\/li>\n\t\t\t\t\t\t\t\t\t<\/ol>\n\n\t\t\t\t<div class=\"sow-slide-nav sow-slide-nav-next\">\n\t\t\t\t\t<a href=\"#\" data-goto=\"next\" aria-label=\"Slide ti\u1ebfp theo\" data-action=\"next\">\n\t\t\t\t\t\t<em class=\"sow-sld-icon-thin-right\"><\/em>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\n\t\t\t\t<div class=\"sow-slide-nav sow-slide-nav-prev\">\n\t\t\t\t\t<a href=\"#\" data-goto=\"previous\" aria-label=\"Slide tr\u01b0\u1edbc\" data-action=\"prev\">\n\t\t\t\t\t\t<em class=\"sow-sld-icon-thin-left\"><\/em>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div><\/div><\/div><div id=\"panel-800-0-0-3\" class=\"so-panel widget widget_sow-slider panel-last-child\" data-index=\"3\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-slider so-widget-sow-slider-default-6d39609536fd-800\"\n\t\t\t\n\t\t>\t\t\t\t<div class=\"sow-slider-base\" style=\"display: none\" tabindex=\"0\">\n\t\t\t\t\t<ul\n\t\t\t\t\tclass=\"sow-slider-images\"\n\t\t\t\t\tdata-settings=\"{"pagination":true,"speed":800,"timeout":8000,"paused":false,"pause_on_hover":false,"swipe":true,"nav_always_show_desktop":"","nav_always_show_mobile":"","breakpoint":"780px","unmute":false,"anchor":null}\"\n\t\t\t\t\t\t\t\t\t\tdata-anchor-id=\"\"\n\t\t\t\t>\t\t<li class=\"sow-slider-image\" style=\"visibility: visible;\" >\n\t\t\t\t\t\t<div class=\"sow-slider-image-container\">\n\t\t\t\t<div class=\"sow-slider-image-wrapper\" style=\"max-width: 1280px\">\n\t\t\t\t\t\t\t\t\t\t<div class=\"sow-slider-image-foreground-wrapper\">\n\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"720\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2017\/12\/IMG_20170828_140400-e1558698111849.webp\" class=\"sow-slider-foreground-image\" alt=\"Thi\u1ebft l\u1eadp c\u00e2n b\u1eb1ng r\u00f4to Vibromera v\u1edbi m\u00e1y t\u00ednh x\u00e1ch tay hi\u1ec3n th\u1ecb ph\u1ea7n m\u1ec1m 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class=\"sow-slide-nav sow-slide-nav-prev\">\n\t\t\t\t\t<a href=\"#\" data-goto=\"previous\" aria-label=\"Slide tr\u01b0\u1edbc\" data-action=\"prev\">\n\t\t\t\t\t\t<em class=\"sow-sld-icon-thin-left\"><\/em>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Industrial Exhaust Fan Balancing: Complete Guide from Theory to Practice Industrial Exhaust Fan Balancing: Complete Guide from Theory to Practice Section 1: Fundamental Principles of Imbalance – Understanding the “Why” Balancing rotating masses is one of the key operations in maintenance and repair of industrial equipment, particularly crucial for exhaust 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