{"id":197,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/pole-pass-frequency\/"},"modified":"2026-07-02T18:51:35","modified_gmt":"2026-07-02T18:51:35","slug":"pole-pass-frequency","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/vi\/glossary\/pole-pass-frequency\/","title":{"rendered":"T\u1ea7n s\u1ed1 c\u1ef1c t\u1eeb l\u00e0 g\u00ec? L\u1ef1c \u0111i\u1ec7n t\u1eeb c\u1ee7a \u0111\u1ed9ng c\u01a1"},"content":{"rendered":"<h1>Hi\u1ec3u v\u1ec1 t\u1ea7n su\u1ea5t v\u01b0\u1ee3t c\u1ef1c<\/h1>\n\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 &amp; 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 &amp; M\u00e1y ph\u00e2n t\u00edch rung \u0111\u1ed9ng Balanset-1A\">M\u00e1y c\u00e2n b\u1eb1ng di \u0111\u1ed9ng &amp; 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\/glossary\/197?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\/glossary\/197?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 &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; 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\/glossary\/197?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\/glossary\/197?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\/glossary\/197?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\/glossary\/197?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\/glossary\/197?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\/glossary\/197?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\/glossary\/197?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\/glossary\/197?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\/glossary\/197?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\/glossary\/197?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\/glossary\/197?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\/glossary\/197?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<p><strong>T\u1ea7n s\u1ed1 v\u01b0\u1ee3t c\u1ef1c<\/strong> (PPF) l\u00e0 t\u1ea7n s\u1ed1 th\u1ea5p <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/vibration\/\">rung \u0111\u1ed9ng<\/a> th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c t\u1ea1o ra trong \u0111\u1ed9ng c\u01a1 c\u1ea3m \u1ee9ng xoay chi\u1ec1u khi t\u1eeb tr\u01b0\u1eddng quay tr\u01b0\u1ee3t qua r\u00f4to. N\u00f3 \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng s\u1ed1 c\u1ef1c nh\u00e2n v\u1edbi <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/slip-frequency\/\">t\u1ea7n s\u1ed1 tr\u01b0\u1ee3t<\/a>: PPF = s\u1ed1 c\u1ef1c \u00d7 (t\u1ed1c \u0111\u1ed9 \u0111\u1ed3ng b\u1ed9 - t\u1ed1c \u0111\u1ed9 th\u1ef1c t\u1ebf) \/ 60. V\u00ec \u0111\u1ed9 tr\u01b0\u1ee3t nh\u1ecf n\u00ean PPF l\u00e0 t\u1ea7n s\u1ed1 r\u1ea5t th\u1ea5p \u2014 th\u01b0\u1eddng ch\u1ec9 v\u00e0i hertz \u2014 v\u00e0 n\u00f3 th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n kh\u00f4ng ph\u1ea3i d\u01b0\u1edbi d\u1ea1ng m\u1ed9t \u0111\u1ec9nh \u0111\u1ed9c l\u1eadp m\u00e0 d\u01b0\u1edbi d\u1ea1ng <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/sidebands\/\">d\u1ea3i b\u00ean<\/a> \u0111\u01b0\u1ee3c \u0111\u1eb7t c\u00e1ch nhau t\u1ea1i PPF xung quanh c\u00e1c th\u00e0nh ph\u1ea7n t\u1ed1c \u0111\u1ed9 ch\u1ea1y v\u00e0 t\u1ea7n s\u1ed1 \u0111\u01b0\u1eddng truy\u1ec1n. S\u1ef1 \u0111i\u1ec1u ch\u1ebf li\u00ean quan \u0111\u1ebfn tr\u01b0\u1ee3t \u0111\u00f3 \u0111\u01b0\u1ee3c khu\u1ebfch \u0111\u1ea1i r\u1ea5t nhi\u1ec1u khi \u0111\u1ed9ng c\u01a1 c\u00f3 <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/air-gap\/\">khe h\u1edf kh\u00f4ng kh\u00ed<\/a> l\u1ec7ch t\u00e2m, thanh r\u00f4to b\u1ecb g\u00e3y ho\u1eb7c v\u1ea5n \u0111\u1ec1 c\u0103n ch\u1ec9nh r\u00f4to v\u1edbi stato. V\u00ec \u0111i\u1ec1u n\u00e0y, PPF l\u00e0 m\u1ed9t trong nh\u1eefng c\u00f4ng c\u1ee5 h\u1eefu \u00edch nh\u1ea5t \u0111\u1ec3 t\u00e1ch <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/electrical-faults\/\">s\u1ef1 c\u1ed1 \u0111i\u1ec7n<\/a> t\u1eeb nh\u1eefng lo\u1ea1i c\u01a1 h\u1ecdc thu\u1ea7n t\u00fay.<\/p>\n<p>PPF c\u00f3 \u00fd ngh\u0129a ch\u1ea9n \u0111o\u00e1n v\u00ec t\u0103ng <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/sidebands\/\">d\u1ea3i b\u00ean<\/a> \u0111\u1eb7t c\u00e1ch nhau t\u1ea1i \u0111i\u1ec3m t\u1ea7n s\u1ed1 n\u00e0y m\u1ed9t c\u00e1ch vu\u00f4ng g\u00f3c t\u1ea1i m\u1ed9t v\u1ea5n \u0111\u1ec1 \u0111i\u1ec7n t\u1eeb - m\u1ed9t r\u00f4to l\u1ec7ch t\u00e2m, c\u00e1c thanh r\u00f4to b\u1ecb h\u1ecfng, khe h\u1edf kh\u00f4ng kh\u00ed kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u ho\u1eb7c t\u01b0\u01a1ng t\u00e1c \u0111\u1ed9ng c\u1ee7a r\u00f4to-stato - ch\u1ee9 kh\u00f4ng ph\u1ea3i \u1edf <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/unbalance\/\">m\u1ea5t c\u00e2n b\u1eb1ng<\/a> ho\u1eb7c <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/misalignment\/\">s\u1ef1 kh\u00f4ng th\u1eb3ng h\u00e0ng<\/a>. N\u1ebfu \u0111\u1ecdc \u0111\u00fang c\u00e1ch, n\u00f3 cho ph\u00eda ph\u00e2n t\u00edch vi\u00ean bi\u1ebft c\u00f3 n\u00ean m\u1edf \u0111\u1ed9ng c\u01a1 hay t\u00ecm ki\u1ebfm \u1edf c\u00e1c n\u01a1i kh\u00e1c tr\u00ean t\u00e0u.<\/p>\n<h2>1. T\u00ednh t\u1ea7n s\u1ed1 \u0111i qua c\u1ef1c (Pole Pass Frequency)<\/h2>\n<h3>C\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n<\/h3>\n<ul>\n<li><strong>PPF = P \u00d7 (N<sub>\u0111\u1ed3ng b\u1ed9 h\u00f3a<\/sub> \u2212 N) \/ 60<\/strong><\/li>\n<li>\u1ede \u0111\u00e2u <strong>P<\/strong> = s\u1ed1 c\u1ef1c,<\/li>\n<li><strong>N<sub>\u0111\u1ed3ng b\u1ed9 h\u00f3a<\/sub><\/strong> = t\u1ed1c \u0111\u1ed9 \u0111\u1ed3ng b\u1ed9 t\u00ednh b\u1eb1ng RPM (N<sub>\u0111\u1ed3ng b\u1ed9 h\u00f3a<\/sub> = 120 \u00d7 t\u1ea7n s\u1ed1 d\u00f2ng \/ P),<\/li>\n<li><strong>N<\/strong> = t\u1ed1c \u0111\u1ed9 rotor th\u1ef1c t\u1ebf t\u00ednh b\u1eb1ng RPM,<\/li>\n<li>v\u00e0 k\u1ebft qu\u1ea3 l\u00e0 Hz. Thu\u1eadt ng\u1eef (N<sub>\u0111\u1ed3ng b\u1ed9 h\u00f3a<\/sub> \u2212 N) \/ 60 l\u00e0 t\u1ea7n s\u1ed1 tr\u01b0\u1ee3t \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng Hz.<\/li>\n<\/ul>\n<p>L\u01b0u \u00fd r\u1eb1ng PPF \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng tr\u00ean <em>ch\u00eanh l\u1ec7ch<\/em> gi\u1eefa t\u1ed1c \u0111\u1ed9 \u0111\u1ed3ng b\u1ed9 v\u00e0 t\u1ed1c \u0111\u1ed9 th\u1ef1c t\u1ebf - <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/slip-frequency\/\">tr\u01b0\u1ee3t<\/a>. Khi kh\u00f4ng t\u1ea3i, \u0111\u1ed9ng c\u01a1 c\u1ea3m \u1ee9ng ch\u1ea1y g\u1ea7n nh\u01b0 \u1edf t\u1ed1c \u0111\u1ed9 \u0111\u1ed3ng b\u1ed9, do \u0111\u00f3 PPF ti\u1ebfn t\u1edbi 0; khi t\u1ea3i t\u0103ng l\u00ean, \u0111\u1ed9 tr\u01b0\u1ee3t v\u00e0 do \u0111\u00f3 PPF t\u0103ng theo, th\u01b0\u1eddng k\u1ebft th\u00fac trong kho\u1ea3ng 0,5\u20133.5 Hz \u1edf m\u1ee9c t\u1ea3i \u0111\u1ecbnh m\u1ee9c. \u0110\u1eebng nh\u1ea7m l\u1eabn PPF v\u1edbi th\u1ee9 t\u1ef1 c\u01a1 h\u1ecdc thu\u1ea7n t\u00fay P \u00d7 t\u1ed1c \u0111\u1ed9 ch\u1ea1y (\u0111\u1ed1i v\u1edbi \u0111\u1ed9ng c\u01a1 4 c\u1ef1c \u1edf 1750 RPM l\u00e0 kho\u1ea3ng 116.7 Hz) - \u0111\u00f3 l\u00e0 s\u1ef1 \u0111i\u1ec1u h\u00f2a c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng quay c\u1ee7a tr\u1ee5c, kh\u00f4ng ph\u1ea3i t\u1ea7n s\u1ed1 truy\u1ec1n c\u1ef1c. Khi b\u1ea1n c\u1ea7n chuy\u1ec3n \u0111\u1ed5i t\u1ed1c \u0111\u1ed9 ch\u1ea1y th\u00e0nh nh\u00f3m \u0111\u01a1n h\u00e0ng m\u1ed9t c\u00e1ch nhanh ch\u00f3ng, ch\u00fang t\u00f4i <a href=\"https:\/\/vibromera.eu\/vi\/calculators\/harmonic-frequency-calculator\/\">M\u00e1y t\u00ednh t\u1ea7n s\u1ed1 h\u00e0i<\/a> chuy\u1ec3n \u0111\u1ed5i RPM th\u00e0nh Hz tr\u00ean c\u00e1c b\u1eadc 1\u00d7\u201310\u00d7, v\u00e0 <a href=\"https:\/\/vibromera.eu\/vi\/calculators\/motor-electrical-frequencies\/\">M\u00e1y t\u00ednh t\u1ea7n su\u1ea5t l\u1ed7i \u0111i\u1ec7n \u0111\u1ed9ng c\u01a1<\/a> tr\u00ecnh b\u00e0y c\u00e1c t\u1ea7n s\u1ed1 \u0111i\u1ec7n t\u1eeb song song v\u1edbi nhau.<\/p>\n<h3>V\u00ed d\u1ee5 minh h\u1ecda<\/h3>\n<p><strong>\u0111\u1ed9ng c\u01a1 4 c\u1ef1c \u1edf 1750 RPM (ngu\u1ed3n 60 Hz):<\/strong><\/p>\n<ul>\n<li>T\u1ed1c \u0111\u1ed9 \u0111\u1ed3ng b\u1ed9 N<sub>\u0111\u1ed3ng b\u1ed9 h\u00f3a<\/sub> = 120 \u00d7 60 \/ 4 = 1800 RPM.<\/li>\n<li>T\u1ea7n s\u1ed1 tr\u01b0\u1ee3t = (1800 \u2212 1750) \/ 60 = 0,83 Hz.<\/li>\n<li><strong>PPF = 4 \u00d7 (1800 \u2212 1750) \/ 60 = 3,33 Hz<\/strong><\/li>\n<li>Trong s\u1ef1 rung \u0111\u1ed9ng <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/spectrum\/\">ph\u1ed5<\/a> n\u00f3 xu\u1ea5t hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng c\u00e1c d\u1ea3i bi\u00ean c\u00e1ch nhau \u00b13,33 Hz quanh \u0111\u1ec9nh t\u1ed1c \u0111\u1ed9 quay 1\u00d7 (29,2 Hz) v\u00e0 quanh t\u1ea7n s\u1ed1 l\u01b0\u1edbi \u0111i\u1ec7n 2\u00d7 (120 Hz) \u2014 m\u1ed9t m\u1eabu h\u00ecnh \u0111\u1eb7c tr\u01b0ng cho hi\u1ec7n t\u01b0\u1ee3ng l\u1ec7ch t\u00e2m v\u00e0 g\u00e3y thanh d\u1eabn rotor.<\/li>\n<\/ul>\n<p><strong>\u0111\u1ed9ng c\u01a1 6 c\u1ef1c \u1edf 970 RPM (ngu\u1ed3n 50 Hz):<\/strong><\/p>\n<ul>\n<li>T\u1ed1c \u0111\u1ed9 \u0111\u1ed3ng b\u1ed9 N<sub>\u0111\u1ed3ng b\u1ed9 h\u00f3a<\/sub> = 120 \u00d7 50 \/ 6 = 1000 RPM.<\/li>\n<li>T\u1ea7n s\u1ed1 tr\u01b0\u1ee3t = (1000 \u2212 970) \/ 60 = 0,5 Hz.<\/li>\n<li><strong>PPF = 6 \u00d7 (1000 \u2212 970) \/ 60 = 3,0 Hz<\/strong><\/li>\n<li>C\u00e1c d\u1ea3i bi\u00ean ch\u1ec9 c\u00e1ch nhau \u00b13,0 Hz quanh \u0111\u1ec9nh 1\u00d7 (16,2 Hz) ho\u1eb7c quanh t\u1ea7n s\u1ed1 l\u01b0\u1edbi \u0111i\u1ec7n 2\u00d7 (100 Hz) r\u1ea5t d\u1ec5 b\u1ecb b\u1ecf s\u00f3t.<\/li>\n<li>Gi\u1ea3i quy\u1ebft ch\u00fang \u0111\u00f2i h\u1ecfi s\u1ef1 c\u1ea9n th\u1eadn, \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/spectral-analysis\/\">ph\u00e2n t\u00edch ph\u1ed5<\/a>.<\/li>\n<\/ul>\n<h2>2. C\u01a1 ch\u1ebf v\u1eadt l\u00fd<\/h2>\n<h3>C\u00e1ch t\u1ea1o ra l\u1ef1c \u0111i\u1ec7n t\u1eeb<\/h3>\n<p>Chu\u1ed7i s\u1ef1 ki\u1ec7n t\u1ea1o ra PPF r\u1ea5t \u0111\u01a1n gi\u1ea3n:<\/p>\n<ol>\n<li>Cu\u1ed9n d\u00e2y stator t\u1ea1o ra m\u1ed9t t\u1eeb tr\u01b0\u1eddng quay \u1edf t\u1ed1c \u0111\u1ed9 \u0111\u1ed3ng b\u1ed9.<\/li>\n<li>Tr\u01b0\u1eddng t\u1eeb \u0111\u00f3 \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp th\u00e0nh c\u00e1c c\u1ef1c t\u1eeb theo m\u00f4 h\u00ecnh N\u2013S\u2013N\u2013S.<\/li>\n<li>R\u00f4to ch\u1ea1y ch\u1eadm h\u01a1n m\u1ed9t ch\u00fat do b\u1ecb tr\u01b0\u1ee3t, do \u0111\u00f3 c\u00e1c c\u1ef1c tr\u01b0\u1eddng li\u00ean t\u1ee5c tr\u00f4i qua r\u00f4to thay v\u00ec b\u1ecb kh\u00f3a v\u00e0o n\u00f3.<\/li>\n<li>M\u1ed7i khi m\u1ed9t c\u1ef1c t\u1eeb tr\u01b0\u1eddng tr\u01b0\u1ee3t qua m\u1ed9t \u0111i\u1ec3m nh\u1ea5t \u0111\u1ecbnh tr\u00ean r\u00f4to (m\u1ed9t thanh c\u00f3 \u0111i\u1ec7n tr\u1edf cao, m\u1ed9t m\u1eb7t l\u1ec7ch t\u00e2m c\u1ee7a khe h\u1edf kh\u00f4ng kh\u00ed), l\u1ef1c t\u1eeb t\u00e1c d\u1ee5ng l\u00ean \u0111i\u1ec3m \u0111\u00f3 s\u1ebd \u0111\u01b0\u1ee3c \u0111i\u1ec1u bi\u1ebfn.<\/li>\n<li>V\u1edbi <strong>P<\/strong> c\u1ef1c, ch\u1ed7 \u0111\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00f4ng qua <strong>P<\/strong> l\u1ea7n trong m\u1ed7i chu k\u1ef3 tr\u01b0\u1ee3t.<\/li>\n<li>Do \u0111\u00f3, t\u1ea7n s\u1ed1 c\u1ee7a qu\u00e1 tr\u00ecnh \u0111i\u1ec1u ch\u1ebf thu \u0111\u01b0\u1ee3c l\u00e0 P \u00d7 t\u1ea7n s\u1ed1 tr\u01b0\u1ee3t = PPF \u2014 nh\u1ecbp &#8220;nh\u1ecbp ch\u1eadm&#8221; \u0111\u01b0\u1ee3c ch\u1ed3ng l\u00ean tr\u00ean rung \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 ch\u1ea1y v\u00e0 t\u1ea7n s\u1ed1 \u0111\u01b0\u1eddng truy\u1ec1n.<\/li>\n<\/ol>\n<h3>Khe h\u1edf kh\u00f4ng kh\u00ed \u0111\u1ec1u \u0111\u1eb7n \u2014 m\u1ed9t motor kh\u1ecfe m\u1ea1nh<\/h3>\n<ul>\n<li>Rotor \u0111\u01b0\u1ee3c \u0111\u1ecbnh t\u00e2m trong l\u1ed7 stator.<\/li>\n<li>Khe h\u1edf kh\u00f4ng kh\u00ed \u0111\u1ec1u \u0111\u1eb7n xung quanh to\u00e0n b\u1ed9 chu vi.<\/li>\n<li>C\u00e1c l\u1ef1c t\u1eeb c\u00e2n b\u1eb1ng v\u00e0 tri\u1ec7t ti\u00eau l\u1eabn nhau.<\/li>\n<li>Do \u0111\u00f3, \u0111i\u1ec1u ch\u1ebf li\u00ean quan \u0111\u1ebfn PPF c\u00f3 bi\u00ean \u0111\u1ed9 r\u1ea5t th\u1ea5p.<\/li>\n<\/ul>\n<h3>Khe h\u1edf kh\u00f4ng kh\u00ed l\u1ec7ch t\u00e2m \u2014 m\u1ed9t motor b\u1ecb khi\u1ebfm khuy\u1ebft<\/h3>\n<ul>\n<li>Rotor ng\u1ed3i l\u1ec7ch t\u00e2m so v\u1edbi <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/bearing-wear\/\">m\u00f2n \u1ed5 tr\u1ee5c<\/a>, m\u1ed9t <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/bent-shaft\/\">tr\u1ee5c b\u1ecb cong<\/a>, ho\u1eb7c m\u1ed9t l\u1ed7i s\u1ea3n xu\u1ea5t.<\/li>\n<li>Khe h\u1edf kh\u00f4ng kh\u00ed nh\u1ecf h\u01a1n \u1edf m\u1ed9t ph\u00eda v\u00e0 l\u1edbn h\u01a1n \u1edf ph\u00eda \u0111\u1ed1i di\u1ec7n.<\/li>\n<li>C\u00e1c l\u1ef1c t\u1eeb tr\u1edf n\u00ean m\u1ea5t c\u00e2n b\u1eb1ng \u2014 m\u1ea1nh h\u01a1n t\u1ea1i n\u01a1i khe h\u1edf nh\u1ecf h\u01a1n.<\/li>\n<li>A l\u1ef1c h\u01b0\u1edbng t\u00e2m r\u00f2ng xu\u1ea5t hi\u1ec7n - <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/magnetic-pull\/\">l\u1ef1c k\u00e9o t\u1eeb kh\u00f4ng c\u00e2n b\u1eb1ng<\/a> \u2014 v\u00e0 n\u00f3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ebf \u1edf PPF khi c\u00e1c c\u1ef1c tr\u01b0\u1eddng tr\u01b0\u1ee3t qua ph\u00eda h\u1eb9p c\u1ee7a khe h\u1edf.<\/li>\n<li>C\u00e1c d\u1ea3i bi\u00ean c\u00e1ch nhau t\u1ea1i PPF ph\u00e1t tri\u1ec3n xung quanh c\u00e1c \u0111\u1ec9nh ph\u1ed5 ch\u00ednh v\u00e0 t\u0103ng d\u1ea7n theo m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng.<\/li>\n<\/ul>\n<h2>3. C\u00e1c D\u1ea3i Bi\u00ean v\u00e0 M\u00f4 H\u00ecnh Ch\u1ea9n \u0110o\u00e1n<\/h2>\n<h3>L\u1ec7ch t\u00e2m t\u0129nh<\/h3>\n<p>\u1ede \u0111\u00e2y t\u00e2m rotor b\u1ecb l\u1ec7ch nh\u01b0ng c\u1ed1 \u0111\u1ecbnh so v\u1edbi stator:<\/p>\n<ul>\n<li><strong>M\u1eabu:<\/strong> th\u00e0nh ph\u1ea7n t\u1ea7n s\u1ed1 l\u01b0\u1edbi \u0111i\u1ec7n 2\u00d7 t\u0103ng cao (100\/120 Hz); c\u00e1c d\u1ea3i bi\u00ean t\u1ea7n s\u1ed1 qua c\u1ef1c y\u1ebfu ho\u1eb7c kh\u00f4ng c\u00f3 v\u00ec \u0111\u1ed9 l\u1ec7ch kh\u00f4ng quay c\u00f9ng tr\u1ee5c.<\/li>\n<li><strong>G\u00e2y ra:<\/strong> m\u00f2n \u1ed5 tr\u1ee5c, bi\u1ebfn d\u1ea1ng khung ho\u1eb7c chu\u00f4ng cu\u1ed1i ho\u1eb7c l\u1ed7i gia c\u00f4ng trong l\u1ed7 stato.<\/li>\n<li><strong>Bi\u00ean \u0111\u1ed9:<\/strong> bi\u00ean \u0111\u1ed9 t\u1ea7n s\u1ed1 d\u00f2ng 2\u00d7 bi\u1ec3u th\u1ecb m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng c\u1ee7a \u0111\u1ed9 l\u1ec7ch t\u00e2m.<\/li>\n<\/ul>\n<h3>L\u1ec7ch t\u00e2m \u0111\u1ed9ng<\/h3>\n<p>\u1ede \u0111\u00e2y t\u00e2m rotor quay ho\u1eb7c xoay v\u00f2ng quanh t\u00e2m stator:<\/p>\n<ul>\n<li><strong>M\u1eabu:<\/strong> c\u00e1c \u0111\u1ec9nh t\u1ed1c \u0111\u1ed9 quay 1\u00d7 v\u00e0 t\u1ea7n s\u1ed1 l\u01b0\u1edbi \u0111i\u1ec7n 2\u00d7 v\u1edbi c\u00e1c d\u1ea3i bi\u00ean c\u00e1ch nhau m\u1ed9t kho\u1ea3ng b\u1eb1ng PPF (v\u00ed d\u1ee5 \u00b13,33 Hz trong v\u00ed d\u1ee5 \u0111\u1ed9ng c\u01a1 4 c\u1ef1c \u1edf tr\u00ean).<\/li>\n<li><strong>Nguy\u00ean nh\u00e2n:<\/strong> tr\u1ee5c, r\u00f4to b\u1ecb cong <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/rotor-eccentricity\/\">s\u1ef1 l\u1eadp d\u1ecb<\/a>, r\u00f4to t\u1edbi stato <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/rotor-rub\/\">c\u1ecd x\u00e1t<\/a> ho\u1eb7c \u1ed5 tr\u1ee5c <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/looseness\/\">s\u1ef1 l\u1ecfng l\u1ebbo<\/a>.<\/li>\n<li><strong>Nghi\u00eam tr\u1ecdng h\u01a1n:<\/strong> \u0111i\u1ec1u \u0111\u00f3 cho th\u1ea5y m\u1ed9t t\u01b0\u01a1ng t\u00e1c \u0111\u1ed9ng l\u1ef1c h\u1ecdc \u0111ang ho\u1ea1t \u0111\u1ed9ng ch\u1ee9 kh\u00f4ng ph\u1ea3i m\u1ed9t \u0111\u1ed9 l\u1ec7ch c\u1ed1 \u0111\u1ecbnh. C\u00f9ng m\u1ed9t h\u1ecd d\u1ea3i bi\u00ean pole-pass quanh 1\u00d7 v\u00e0 c\u00e1c h\u00e0i c\u1ee7a n\u00f3 ch\u00ednh l\u00e0 d\u1ea5u hi\u1ec7u \u0111\u1eb7c tr\u01b0ng c\u1ee7a hi\u1ec7n t\u01b0\u1ee3ng g\u00e3y thanh d\u1eabn rotor.<\/li>\n<\/ul>\n<h3>L\u1ec7ch t\u00e2m h\u1ed7n h\u1ee3p<\/h3>\n<ul>\n<li>S\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u00e1c t\u00e1c d\u1ee5ng t\u0129nh v\u00e0 \u0111\u1ed9ng.<\/li>\n<li>\u0110\u00e2y l\u00e0 tr\u1ea1ng th\u00e1i ph\u1ed5 bi\u1ebfn nh\u1ea5t \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong c\u00e1c \u0111\u1ed9ng c\u01a1 th\u1ef1c t\u1ebf.<\/li>\n<li>N\u00f3 t\u1ea1o ra c\u00e1c m\u1eabu d\u1ea3i b\u00ean ph\u1ee9c t\u1ea1p.<\/li>\n<li>C\u1ea7n ph\u1ea3i ph\u00e2n t\u00edch c\u1ea9n th\u1eadn \u0111\u1ec3 di\u1ec5n gi\u1ea3i n\u00f3 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.<\/li>\n<\/ul>\n<h2>4. Gi\u1ea3i th\u00edch ch\u1ea9n \u0111o\u00e1n<\/h2>\n<p>V\u00ec PPF ch\u1ec9 l\u00e0 v\u00e0i Hz, n\u00f3 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 th\u00f4ng qua c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a c\u00e1c d\u1ea3i bi\u00ean quanh \u0111\u1ec9nh t\u1ed1c \u0111\u1ed9 quay 1\u00d7 v\u00e0 t\u1ea7n s\u1ed1 l\u01b0\u1edbi \u0111i\u1ec7n 2\u00d7, \u0111\u01b0\u1ee3c \u0111\u1ecdc nh\u01b0 m\u1ed9t d\u1ea3i li\u00ean t\u1ee5c:<\/p>\n<h3>Th\u1ea5p - c\u00e1c d\u1ea3i bi\u00ean c\u1ef1c th\u1ea5p h\u1ea7u nh\u01b0 kh\u00f4ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c ph\u00eda tr\u00ean m\u1ee9c nhi\u1ec5u<\/h3>\n<ul>\n<li>M\u1ed9t tr\u1ea1ng th\u00e1i b\u00ecnh th\u01b0\u1eddng.<\/li>\n<li>Kho\u1ea3ng c\u00e1ch kh\u00ed \u0111\u1ed3ng nh\u1ea5t v\u00e0 \u0111\u1ed3ng t\u00e2m rotor-stator t\u1ed1t.<\/li>\n<li>Kh\u00f4ng c\u1ea7n h\u00e0nh \u0111\u1ed9ng \u0111i\u1ec1u ch\u1ec9nh.<\/li>\n<\/ul>\n<h3>Trung b\u00ecnh - c\u00e1c d\u1ea3i bi\u00ean c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y r\u00f5 r\u00e0ng nh\u01b0ng th\u1ea5p h\u01a1n nhi\u1ec1u so v\u1edbi \u0111\u1ec9nh s\u00f3ng mang<\/h3>\n<ul>\n<li>Khe h\u1edf kh\u00f4ng kh\u00ed kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u m\u1ed9t ch\u00fat ho\u1eb7c m\u1ea1ch r\u00f4to b\u1ecb suy gi\u1ea3m s\u1edbm.<\/li>\n<li>Theo d\u00f5i xu h\u01b0\u1edbng v\u00e0 ki\u1ec3m tra t\u00ecnh tr\u1ea1ng c\u1ee7a v\u00f2ng bi.<\/li>\n<li>X\u00e1c minh v\u1ecb tr\u00ed rotor n\u1ebfu n\u00f3 d\u1ec5 ti\u1ebfp c\u1eadn.<\/li>\n<li>Ch\u01b0a ph\u1ea3i nguy hi\u1ec3m tr\u1ef1c ti\u1ebfp, nh\u01b0ng c\u1ea7n \u0111\u01b0\u1ee3c ch\u00fa \u00fd.<\/li>\n<\/ul>\n<h3>Cao - c\u00e1c d\u1ea3i bi\u00ean ti\u1ebfp c\u1eadn bi\u00ean \u0111\u1ed9 c\u1ef1c \u0111\u1ea1i c\u1ee7a s\u00f3ng mang<\/h3>\n<ul>\n<li>\u0110\u1ed9 l\u1ec7ch t\u00e2m \u0111\u00e1ng k\u1ec3, thanh r\u00f4to b\u1ecb h\u1ecfng ho\u1eb7c c\u00f3 v\u1ea5n \u0111\u1ec1 v\u1ec1 khe h\u1edf kh\u00f4ng kh\u00ed.<\/li>\n<li>A ph\u00e1t \u00e2m t\u1ea7n s\u1ed1 th\u1ea5p &#8220;nh\u1ecbp&#8221; c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea3m nh\u1eadn ho\u1eb7c nghe th\u1ea5y t\u1ea1i PPF.<\/li>\n<li>Nguy c\u01a1 ti\u1ebfp x\u00fac rotor-stator.<\/li>\n<li>C\u00e1c l\u1ef1c \u0111i\u1ec7n t\u1eeb t\u0103ng l\u00ean t\u0103ng t\u1ed1c \u0111\u1ed9 h\u01b0 h\u1ecfng.<\/li>\n<li>L\u00ean k\u1ebf ho\u1ea1ch s\u1eeda ch\u1eefa ho\u1eb7c thay th\u1ebf.<\/li>\n<\/ul>\n<p>Trong th\u1ef1c t\u1ebf, nh\u00e0 ph\u00e2n t\u00edch hi\u1ebfm khi \u0111\u00e1nh gi\u00e1 PPF m\u1ed9t m\u00ecnh. M\u1ed9t b\u1ed9 ph\u00e2n t\u00edch hai k\u00eanh di \u0111\u1ed9ng nh\u01b0 <a href=\"https:\/\/vibromera.eu\/vi\/san-pham\/balanset-1\/\">Balanset-1A<\/a>, \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u1ea1i c\u00e1c g\u1ed1i \u0111\u1ee1 \u1ed5 tr\u1ee5c, thu nh\u1eadn ph\u1ed5 v\u00e0 ph\u00e2n gi\u1ea3i c\u00e1c d\u1ea3i bi\u00ean pole-pass quanh c\u00e1c \u0111\u1ec9nh 1\u00d7 v\u00e0 t\u1ea7n s\u1ed1 l\u01b0\u1edbi \u0111i\u1ec7n \u2014 v\u00e0, quan tr\u1ecdng kh\u00f4ng k\u00e9m, x\u00e1c nh\u1eadn th\u00e0nh ph\u1ea7n chi\u1ebfm \u01b0u th\u1ebf l\u00e0 \u0111i\u1ec7n t\u1eeb hay ch\u1ec9 l\u00e0 \u0111\u1ec9nh 1\u00d7 \u0111\u01a1n gi\u1ea3n c\u1ee7a m\u1ed9t l\u1ed7i c\u01a1 kh\u00ed. S\u1ef1 ph\u00e2n bi\u1ec7t \u0111\u00f3 quy\u1ebft \u0111\u1ecbnh m\u1ecdi b\u01b0\u1edbc ti\u1ebfp theo: m\u1ed9t d\u1ea5u hi\u1ec7u \u0111i\u1ec7n t\u1eeb s\u1ebd \u0111\u01b0a b\u1ea1n v\u00e0o b\u00ean trong \u0111\u1ed9ng c\u01a1, c\u00f2n m\u1ed9t \u0111\u1ec9nh 1\u00d7 s\u1ea1ch bi\u1ebfn m\u1ea5t ngay khi c\u1eaft \u0111i\u1ec7n th\u00ec ch\u1ec9 ra <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/unbalance\/\">m\u1ea5t c\u00e2n b\u1eb1ng<\/a> b\u1ea1n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh b\u1eb1ng c\u00e1ch <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/field-balancing\/\">c\u00e2n b\u1eb1ng t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng<\/a> rotor t\u1ea1i ch\u1ed7.<\/p>\n<h2>5. M\u1ed1i quan h\u1ec7 v\u1edbi c\u00e1c t\u1ea7n s\u1ed1 \u0111\u1ed9ng c\u01a1 kh\u00e1c<\/h2>\n<p>PPF l\u00e0 m\u1ed9t \u00e2m trong ph\u1ed5 \u0111\u1ed9ng c\u01a1 \u0111\u00f4ng \u0111\u00fac, v\u00e0 nh\u1eadn ra n\u00f3 n\u1eb1m \u1edf v\u1ecb tr\u00ed t\u01b0\u01a1ng \u0111\u1ed1i v\u1edbi c\u00e1c h\u00e0ng x\u00f3m c\u1ee7a n\u00f3 l\u00e0 n\u1eeda cu\u1ed9c chi\u1ebfn. M\u1ed9t th\u1ee9 b\u1eadc \u0111i\u1ec3n h\u00ecnh cho m\u1ed9t \u0111\u1ed9ng c\u01a1 4-c\u1ef1c, 1750 RPM tr\u00ean ngu\u1ed3n 60 Hz l\u00e0:<\/p>\n<ul>\n<li><strong>T\u1ea7n s\u1ed1 tr\u01b0\u1ee3t:<\/strong> (1800 \u2212 1750) \/ 60 \u2248 0.83 Hz.<\/li>\n<li><strong>PPF:<\/strong> P \u00d7 t\u1ea7n s\u1ed1 tr\u01b0\u1ee3t - kho\u1ea3ng 3.3 Hz \u1edf \u0111\u00e2y, \u00e2m th\u1ea5p nh\u1ea5t trong h\u1ecd.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/vi\/glossary\/running-speed\/\">T\u1ed1c \u0111\u1ed9 quay<\/a> (1\u00d7):<\/strong> kho\u1ea3ng 29,2 Hz.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/vi\/glossary\/electrical-frequency\/\">T\u1ea7n s\u1ed1 \u0111\u01b0\u1eddng d\u00e2y<\/a>:<\/strong> 60 Hz (ho\u1eb7c 50 Hz \u1edf Ch\u00e2u \u00c2u).<\/li>\n<li><strong>Th\u1ee9 t\u1ef1 c\u01a1 kh\u00ed r\u00f4to P \u00d7 t\u1ed1c \u0111\u1ed9 ch\u1ea1y:<\/strong> v\u1ec1 117 Hz \u2014 th\u01b0\u1eddng b\u1ecb nh\u1ea7m l\u1eabn v\u1edbi PPF, nh\u01b0ng n\u00f3 l\u00e0 m\u1ed9t s\u00f3ng h\u00e0i t\u1ed1c \u0111\u1ed9 tr\u1ee5c.<\/li>\n<li><strong>2\u00d7 t\u1ea7n s\u1ed1 l\u01b0\u1edbi:<\/strong> 120 Hz (ho\u1eb7c 100 Hz) \u2014 th\u00e0nh ph\u1ea7n \u0111i\u1ec7n t\u1eeb quan tr\u1ecdng cho \u0111\u1ed9 l\u1ec7ch t\u00e2m.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/vi\/glossary\/motor-bar-pass-frequency\/\">T\u1ea7n s\u1ed1 r\u00e3i que rotor<\/a>:<\/strong> s\u1ed1 thanh r\u00f4to \u00d7 t\u1ed1c \u0111\u1ed9 ch\u1ea1y, t\u0103ng d\u1ea7n trong ph\u1ea1m vi kilohertz.<\/li>\n<\/ul>\n<p>Kho\u1ea3ng c\u00e1ch g\u1ea7n c\u1ee7a t\u1ea7n s\u1ed1 d\u00f2ng 2\u00d7 (120 Hz) v\u00e0 t\u1ea7n s\u1ed1 g\u1ea7n \u0111\u00f3 <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/harmonics\/\">s\u00f3ng h\u00e0i<\/a> v\u1ec1 t\u1ed1c \u0111\u1ed9 ch\u1ea1y (b\u1eadc th\u1ee9 4 n\u1eb1m \u1edf kho\u1ea3ng 117 Hz \u1edf \u0111\u00e2y) ch\u00ednh x\u00e1c l\u00e0 l\u00fd do t\u1ea1i sao c\u00e1c l\u1ed7i \u0111i\u1ec7n t\u1eeb r\u1ea5t d\u1ec5 b\u1ecb nh\u1ea7m l\u1eabn v\u1edbi c\u00e1c l\u1ed7i c\u01a1 h\u1ecdc - v\u00e0 t\u1ea1i sao c\u1ea5u tr\u00fac d\u1ea3i bi\u00ean truy\u1ec1n c\u1ef1c t\u1ed1t, ch\u1ee9 kh\u00f4ng ph\u1ea3i ri\u00eang bi\u00ean \u0111\u1ed9, l\u1ea1i l\u00e0 manh m\u1ed1i quy\u1ebft \u0111\u1ecbnh. Trong tr\u01b0\u1eddng h\u1ee3p h\u00ecnh \u1ea3nh v\u1eabn c\u00f2n m\u01a1 h\u1ed3, vi\u1ec7c t\u1eaft ngu\u1ed3n cung c\u1ea5p l\u00e0 th\u1eed nghi\u1ec7m cu\u1ed1i c\u00f9ng: m\u1ed9t th\u00e0nh ph\u1ea7n \u0111i\u1ec7n t\u1eeb bi\u1ebfn m\u1ea5t ngay l\u1eadp t\u1ee9c c\u00f9ng v\u1edbi tr\u01b0\u1eddng, trong khi th\u00e0nh ph\u1ea7n c\u01a1 h\u1ecdc ch\u1ec9 ph\u00e2n h\u1ee7y khi r\u00f4to ch\u1ea1y ch\u1eadm l\u1ea1i.<\/p>\n<h2>6. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ch\u1ec9nh s\u1eeda<\/h2>\n<h3>\u0110\u1ec3 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 l\u1ec7ch t\u00e2m c\u01a1 h\u1ecdc<\/h3>\n<ul>\n<li>Thay th\u1ebf v\u00f2ng bi b\u1ecb m\u00f2n \u0111\u1ec3 kh\u00f4i ph\u1ee5c l\u1ea1i v\u1ecb tr\u00ed t\u00e2m r\u00f4to th\u00edch h\u1ee3p<\/li>\n<li>S\u1eeda ch\u1eefa tr\u1ee5c cong ho\u1eb7c thay th\u1ebf rotor.<\/li>\n<li>L\u1eafp \u0111\u1eb7t l\u1ea1i rotor n\u1ebfu l\u1ed7i l\u00e0 sai s\u00f3t khi l\u1eafp r\u00e1p.<\/li>\n<li>X\u00e1c minh c\u0103n ch\u1ec9nh \u0111\u1ea7u cu\u1ed1i v\u00e0 \u0111\u1ed9 ch\u1eb7t c\u1ee7a bu l\u00f4ng.<\/li>\n<\/ul>\n<h3>\u0110\u1ed1i v\u1edbi \u0111\u1ed9 l\u1ec7ch t\u00e2m do s\u1ea3n xu\u1ea5t<\/h3>\n<ul>\n<li>C\u00e1c tr\u01b0\u1eddng h\u1ee3p nghi\u00eam tr\u1ecdng c\u00f3 th\u1ec3 y\u00eau c\u1ea7u ti\u1ec7n l\u1ed7 rotor ho\u1eb7c stator.<\/li>\n<li>Thay th\u1ebf \u0111\u1ed9ng c\u01a1 n\u1ebfu c\u00f3 c\u0103n c\u1ee9 kinh t\u1ebf.<\/li>\n<li>Ch\u1ea5p nh\u1eadn t\u00ecnh tr\u1ea1ng n\u1ebfu \u0111\u1ed9 rung trong gi\u1edbi h\u1ea1n ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c.<\/li>\n<li>Ghi l\u1ea1i n\u00f3 l\u00e0m c\u01a1 s\u1edf \u0111\u1ec3 so s\u00e1nh trong t\u01b0\u01a1ng lai.<\/li>\n<\/ul>\n<h3>\u0110\u1ec3 kh\u1eafc ph\u1ee5c v\u1ea5n \u0111\u1ec1 kho\u1ea3ng h\u1edf kh\u00ed<\/h3>\n<ul>\n<li>Ki\u1ec3m tra t\u00ecnh tr\u1ea1ng c\u1ee7a v\u00f2ng bi v\u00e0 thay th\u1ebf n\u1ebfu m\u00f2n.<\/li>\n<li>X\u00e1c minh v\u1ecb tr\u00ed tr\u1ee5c c\u1ee7a rotor.<\/li>\n<li>Ki\u1ec3m tra bi\u1ebfn d\u1ea1ng khung ho\u1eb7c c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 \u0111\u1ea7u cu\u1ed1i.<\/li>\n<li>\u0110o kho\u1ea3ng c\u00e1ch kh\u00f4ng kh\u00ed th\u1ef1c t\u1ebf n\u01a1i c\u00f3 th\u1ec3 ti\u1ebfp c\u1eadn \u0111\u01b0\u1ee3c.<\/li>\n<\/ul>\n<p>T\u00f3m l\u1ea1i, t\u1ea7n s\u1ed1 truy\u1ec1n c\u1ef1c l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n t\u1ea7n s\u1ed1 th\u1ea5p d\u00e0nh ri\u00eang cho \u0111\u1ed9ng c\u01a1, li\u00ean quan \u0111\u1ebfn tr\u01b0\u1ee3t, m\u1edf ra m\u1ed9t c\u1eeda s\u1ed5 v\u1ec1 t\u01b0\u01a1ng t\u00e1c \u0111i\u1ec7n t\u1eeb r\u00f4to-stato v\u00e0 t\u00ednh \u0111\u1ed3ng nh\u1ea5t c\u1ee7a khe h\u1edf kh\u00f4ng kh\u00ed. Vi\u1ec7c n\u1eafm v\u1eefng c\u00e1ch t\u00ednh to\u00e1n, nh\u1eadn d\u1ea1ng c\u00e1c d\u1ea5u hi\u1ec7u d\u1ea3i bi\u00ean v\u00e0 \u0111\u1ecdc xu h\u01b0\u1edbng bi\u00ean \u0111\u1ed9 c\u1ee7a ch\u00fang cho ph\u00e9p k\u1ef9 s\u01b0 ch\u1ea9n \u0111o\u00e1n c\u00e1c l\u1ed7i \u0111i\u1ec7n t\u1eeb m\u1ed9t c\u00e1ch t\u1ef1 tin \u2014 v\u00e0 h\u01b0\u1edbng n\u1ed7 l\u1ef1c b\u1ea3o tr\u00ec \u0111\u1ebfn \u0111\u00fang n\u01a1i thay v\u00ec ch\u1ea1y theo nguy\u00ean nh\u00e2n c\u01a1 h\u1ecdc kh\u00f4ng bao gi\u1edd c\u00f3.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/vi\/glossary\/\">\u2190 Quay l\u1ea1i M\u1ee5c l\u1ee5c ch\u00ednh<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u v\u1ec1 t\u1ea7n s\u1ed1 v\u01b0\u1ee3t c\u1ef1c (PPF), t\u1ea7n s\u1ed1 rung \u0111\u1ed9ng t\u1ea1o ra b\u1edfi s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa r\u00f4to v\u00e0 c\u1ef1c stato, ch\u1ea9n \u0111o\u00e1n \u0111\u1ed9 l\u1ec7ch t\u00e2m khe h\u1edf kh\u00f4ng kh\u00ed v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 \u0111i\u1ec7n t\u1eeb trong \u0111\u1ed9ng c\u01a1.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-197","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/glossary\/197","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":2,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/glossary\/197\/revisions"}],"predecessor-version":[{"id":102086,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/glossary\/197\/revisions\/102086"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/media?parent=197"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/categories?post=197"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/tags?post=197"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}