{"id":246,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/spectral-analysis\/"},"modified":"2026-05-23T22:15:26","modified_gmt":"2026-05-23T22:15:26","slug":"spectral-analysis","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/vi\/glossary\/spectral-analysis\/","title":{"rendered":"Ph\u00e2n t\u00edch quang ph\u1ed5 l\u00e0 g\u00ec? \u2013 Ch\u1ea9n \u0111o\u00e1n rung \u0111\u1ed9ng"},"content":{"rendered":"<h1>T\u00ecm hi\u1ec3u v\u1ec1 ph\u00e2n t\u00edch ph\u1ed5<\/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\/246?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\/246?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\/246?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\/246?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\/246?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\/246?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\/246?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\/246?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\/246?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\/246?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\/246?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\/246?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\/246?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\/246?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>Ph\u00e2n t\u00edch ph\u1ed5<\/strong> l\u00e0 qu\u00e1 tr\u00ecnh l\u1ea5y m\u1ed9t t\u00edn hi\u1ec7u ph\u1ee9c t\u1ea1p \u2014 ch\u1eb3ng h\u1ea1n nh\u01b0 m\u1ed9t <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/time-waveform\/\">d\u1ea1ng s\u00f3ng th\u1eddi gian<\/a> t\u1eeb m\u1ed9t c\u1ea3m bi\u1ebfn rung \u2014 v\u00e0 ph\u00e2n t\u00e1ch n\u00f3 th\u00e0nh c\u00e1c th\u00e0nh ph\u1ea7n t\u1ea7n s\u1ed1 ri\u00eang l\u1ebb c\u1ee7a n\u00f3. M\u1ee5c ti\u00eau c\u1ee7a n\u00f3 l\u00e0 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u t\u1eeb <em>mi\u1ec1n th\u1eddi gian<\/em> (bi\u00ean \u0111\u1ed9 theo th\u1eddi gian) v\u00e0o <em>mi\u1ec1n t\u1ea7n s\u1ed1<\/em> (bi\u00ean \u0111\u1ed9 theo t\u1ea7n s\u1ed1). K\u1ebft qu\u1ea3 l\u00e0 m\u1ed9t <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/spectrum\/\">ph\u1ed5<\/a> (d\u1ea1o h\u00e0m: c\u00e1c ph\u1ed5): bi\u1ec3u \u0111\u1ed3 th\u1ec3 hi\u1ec7n bi\u00ean \u0111\u1ed9 rung \u0111\u1ed9ng \u1edf m\u1ed7i t\u1ea7n s\u1ed1 c\u1ee5 th\u1ec3. Ph\u00e2n t\u00edch ph\u1ed5 l\u00e0 k\u1ef9 thu\u1eadt c\u01a1 b\u1ea3n v\u00e0 m\u1ea1nh m\u1ebd nh\u1ea5t trong <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/vibration-diagnostics\/\">ch\u1ea9n \u0111o\u00e1n rung \u0111\u1ed9ng<\/a>, v\u00ec n\u00f3 cho ph\u00e9p k\u1ef9 s\u01b0 x\u00e1c \u0111\u1ecbnh c\u00e1c ch\u1eef k\u00fd t\u1ea7n s\u1ed1 duy nh\u1ea5t li\u00ean k\u1ebft v\u1edbi c\u00e1c l\u1ed7i m\u00e1y kh\u00e1c nhau.<\/p>\n<h2>1. \u0110\u1ecbnh ngh\u0129a: Ph\u00e2n t\u00edch ph\u1ed5 l\u00e0 g\u00ec?<\/h2>\n<p>Rung \u0111\u1ed9ng c\u1ee7a m\u00e1y l\u00e0 t\u1ed5ng c\u1ee7a nhi\u1ec1u l\u1ef1c tu\u1ea7n ho\u00e0n di\u1ec5n ra \u0111\u1ed3ng th\u1eddi, v\u00e0 trong mi\u1ec1n th\u1eddi gian nh\u1eefng l\u1ef1c n\u00e0y t\u1ea1o th\u00e0nh m\u1ed9t d\u1ea5u v\u1ebft ph\u1ee9c t\u1ea1p kh\u00f3 gi\u1ea3i th\u00edch. Ph\u00e2n t\u00edch ph\u1ed5 l\u00e0m s\u00e1ng t\u1ecf d\u1ea5u v\u1ebft \u0111\u00f3. N\u1ec1n t\u1ea3ng to\u00e1n h\u1ecdc l\u00e0 nguy\u00ean l\u00fd Fourier: b\u1ea5t k\u1ef3 t\u00edn hi\u1ec7u tu\u1ea7n ho\u00e0n n\u00e0o, d\u00f9 ph\u1ee9c t\u1ea1p c\u1ee1 n\u00e0o, c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n l\u00e0 t\u1ed5ng c\u1ee7a c\u00e1c s\u00f3ng sin \u0111\u01a1n gi\u1ea3n, m\u1ed7i s\u00f3ng c\u00f3 t\u1ea7n s\u1ed1, bi\u00ean \u0111\u1ed9 v\u00e0 pha ri\u00eang. Ph\u00e2n t\u00edch ph\u1ed5 kh\u00f4i ph\u1ee5c danh s\u00e1ch c\u00e1c s\u00f3ng sin \u0111\u00f3 v\u00e0 hi\u1ec3n th\u1ecb d\u01b0\u1edbi d\u1ea1ng ph\u1ed5 \u2014 chuy\u1ec3n \u0111\u1ed5i &#8220;m\u1ed9t dao \u0111\u1ed9ng ph\u1ee9c t\u1ea1p theo th\u1eddi gian&#8221; th\u00e0nh &#8220;m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c \u0111\u1ec9nh g\u1ecdn g\u00e0ng \u1edf nh\u1eefng t\u1ea7n s\u1ed1 \u0111\u00e3 bi\u1ebft.&#8221; S\u1ef1 chuy\u1ec3n \u0111\u1ed5i \u0111\u00f3 l\u00e0 \u0111i\u1ec3m quan tr\u1ecdng, v\u00e0 m\u1ecdi th\u1ee9 kh\u00e1c \u0111\u1ec1u suy ra t\u1eeb n\u00f3.<\/p>\n<h2>2. Vai tr\u00f2 c\u1ee7a Bi\u1ebfn \u0111\u1ed5i Fourier Nhanh (FFT)<\/h2>\n<p>Ph\u00e2n t\u00edch ph\u1ed5 hi\u1ec7n \u0111\u1ea1i tr\u1edf n\u00ean kh\u1ea3 thi nh\u1edd m\u1ed9t thu\u1eadt to\u00e1n c\u1ef1c k\u1ef3 hi\u1ec7u qu\u1ea3 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/fft\/\">Bi\u1ebfn \u0111\u1ed5i Fourier nhanh (FFT)<\/a>. FFT l\u00e0 m\u1ed9t th\u1ee7 t\u1ee5c to\u00e1n h\u1ecdc \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh v\u00e0o m\u1ecdi <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/vibration-analyzer\/\">m\u00e1y ph\u00e2n t\u00edch rung \u0111\u1ed9ng<\/a>. N\u00f3 nh\u1eadn d\u1eef li\u1ec7u d\u1ea1ng s\u00f3ng th\u1eddi gian \u0111\u01b0\u1ee3c s\u1ed1 h\u00f3a l\u00e0m \u0111\u1ea7u v\u00e0o v\u00e0 t\u1ea1o ra ph\u1ed5 t\u1ea7n s\u1ed1 l\u00e0m \u0111\u1ea7u ra, th\u1ef1c hi\u1ec7n trong v\u00e0i mili gi\u00e2y m\u1ed9t t\u00ednh to\u00e1n m\u00e0 tr\u01b0\u1edbc \u0111\u00e2y s\u1ebd m\u1ea5t h\u00e0ng gi\u1edd th\u1ef1c hi\u1ec7n b\u1eb1ng tay.<\/p>\n<p>FFT cho ph\u00e9p m\u1ed9t t\u00edn hi\u1ec7u ph\u1ee9c t\u1ea1p, d\u01b0\u1eddng nh\u01b0 h\u1ed7n lo\u1ea1n \u2014 r\u1ea5t kh\u00f3 \u0111\u1ecdc trong mi\u1ec1n th\u1eddi gian \u2014 \u0111\u01b0\u1ee3c xem l\u00e0 m\u1ed9t chu\u1ed7i r\u00f5 r\u00e0ng c\u00e1c \u0111\u1ec9nh t\u1ea7n s\u1ed1 ri\u00eang bi\u1ec7t trong mi\u1ec1n t\u1ea7n s\u1ed1. \u0110\u1ec3 FFT h\u1ee3p l\u1ec7, t\u00edn hi\u1ec7u ph\u1ea3i \u0111\u01b0\u1ee3c l\u1ea5y m\u1eabu ch\u00ednh x\u00e1c tr\u01b0\u1edbc ti\u00ean v\u00e0 \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 kh\u1ecfi <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/aliasing\/\">ch\u1ed3ng ph\u1ed5<\/a>, \u0111\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao m\u1ed9t b\u1ed9 l\u1ecdc ch\u1ed1ng aliasing lu\u00f4n \u0111\u1ee9ng tr\u01b0\u1edbc ph\u00e9p bi\u1ebfn \u0111\u1ed5i.<\/p>\n<h2>3. S\u1ee9c m\u1ea1nh ch\u1ea9n \u0111o\u00e1n c\u1ee7a ph\u1ed5<\/h2>\n<p>Ph\u00e2n t\u00edch ph\u1ed5 c\u1ef1c k\u1ef3 hi\u1ec7u qu\u1ea3 v\u00ec c\u00e1c v\u1ea5n \u0111\u1ec1 c\u01a1 h\u1ecdc v\u00e0 \u0111i\u1ec7n kh\u00e1c nhau trong m\u00e1y m\u00f3c quay t\u1ea1o ra rung \u0111\u1ed9ng \u1edf nh\u1eefng t\u1ea7n s\u1ed1 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c, \u0111\u1eb7c tr\u01b0ng. B\u1eb1ng c\u00e1ch ki\u1ec3m tra ph\u1ed5, k\u1ef9 s\u01b0 c\u00f3 th\u1ec3 ch\u1ea9n \u0111o\u00e1n nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 c\u1ee7a v\u1ea5n \u0111\u1ec1 b\u1eb1ng c\u00e1ch so kh\u1edbp c\u00e1c t\u1ea7n s\u1ed1 c\u1ee7a c\u00e1c \u0111\u1ec9nh v\u1edbi m\u1eabu l\u1ed7i \u0111\u00e3 bi\u1ebft. C\u00e1c v\u00ed d\u1ee5 ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n<ul>\n<li>M\u1ed9t \u0111\u1ec9nh l\u1edbn \u1edf 1\u00d7 t\u1ed1c \u0111\u1ed9 <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/running-speed\/\">t\u1ed1c \u0111\u1ed9 v\u1eadn h\u00e0nh<\/a> th\u01b0\u1eddng ch\u1ec9 ra <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/unbalance\/\">m\u1ea5t c\u00e2n b\u1eb1ng<\/a> \u2014 t\u00edn hi\u1ec7u cho m\u1ed9t c\u00f4ng vi\u1ec7c c\u00e2n b\u1eb1ng.<\/li>\n<li>M\u1ed9t \u0111\u1ec9nh l\u1edbn \u1edf 2\u00d7 t\u1ed1c \u0111\u1ed9 ch\u1ea1y l\u00e0 d\u1ea5u hi\u1ec7u c\u1ed5 \u0111i\u1ec3n c\u1ee7a <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/misalignment\/\">s\u1ef1 kh\u00f4ng th\u1eb3ng h\u00e0ng<\/a>.<\/li>\n<li>M\u1ed9t h\u00e0ng c\u00e1c b\u1ed9i s\u1ed1 t\u1ed1c \u0111\u1ed9 ch\u1ea1y th\u01b0\u1eddng ch\u1ec9 ra s\u1ef1 l\u1ecfng l\u1ebbo c\u01a1 h\u1ecdc.<\/li>\n<li>M\u1ed9t lo\u1ea1t c\u00e1c \u0111\u1ec9nh \u1edf b\u1ed9i s\u1ed1 kh\u00f4ng nguy\u00ean c\u1ee7a t\u1ed1c \u0111\u1ed9 ch\u1ea1y c\u00f3 th\u1ec3 ch\u1ec9 ra <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/bearing-defects\/\">khuy\u1ebft t\u1eadt \u1ed5 tr\u1ee5c<\/a>, th\u01b0\u1eddng \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn t\u1ed1t nh\u1ea5t b\u1eb1ng <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/envelope-analysis\/\">ph\u00e2n t\u00edch \u0111\u01b0\u1eddng bao<\/a>.<\/li>\n<li>M\u1ed9t \u0111\u1ec9nh bi\u00ean \u0111\u1ed9 cao \u1edf t\u1ea7n s\u1ed1 kh\u1edbp b\u00e1nh r\u0103ng v\u1edbi <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/sidebands\/\">d\u1ea3i b\u00ean<\/a> ch\u1ec9 ra <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/gear-defects\/\">khuy\u1ebft t\u1eadt b\u00e1nh r\u0103ng<\/a>.<\/li>\n<li>M\u1ed9t \u0111\u1ec9nh \u1edf 2\u00d7 t\u1ea7n s\u1ed1 d\u00f2ng \u0111i\u1ec7n c\u00f3 th\u1ec3 ch\u1ec9 ra v\u1ea5n \u0111\u1ec1 stator c\u1ee7a \u0111\u1ed9ng c\u01a1.<\/li>\n<\/ul>\n<h2>4. C\u00e1c th\u00f4ng s\u1ed1 ch\u00ednh trong ph\u00e2n t\u00edch ph\u1ed5<\/h2>\n<p>\u0110\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c m\u1ed9t ph\u1ed5 h\u1eefu \u00edch, k\u1ef9 s\u01b0 ph\u1ea3i x\u00e1c \u0111\u1ecbnh m\u1ed9t s\u1ed1 tham s\u1ed1 ch\u00ednh. Sai l\u1ea7m \u1edf b\u1ea5t k\u1ef3 \u0111\u00e2u v\u00e0 ngay c\u1ea3 m\u1ed9t FFT ho\u00e0n h\u1ea3o c\u0169ng s\u1ebd g\u00e2y hi\u1ec3u l\u1ea7m cho b\u1ea1n:<\/p>\n<ul>\n<li><strong>Fmax (t\u1ea7n s\u1ed1 t\u1ed1i \u0111a):<\/strong> t\u1ea7n s\u1ed1 cao nh\u1ea5t \u0111\u01b0\u1ee3c bao g\u1ed3m trong ph\u1ed5. N\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1eb7t \u0111\u1ee7 cao \u0111\u1ec3 n\u1eafm b\u1eaft nh\u1eefng l\u1ed7i \u0111\u01b0\u1ee3c nghi ng\u1edd \u2014 cao \u0111\u1ed1i v\u1edbi c\u00e1c v\u1ea5n \u0111\u1ec1 b\u00e1nh r\u0103ng v\u00e0 v\u00f2ng bi, th\u1ea5p h\u01a1n \u0111\u1ed1i v\u1edbi m\u1ea5t c\u00e2n b\u1eb1ng t\u1ed1c \u0111\u1ed9 ch\u1eadm.<\/li>\n<li><strong>\u0110\u1ed9 ph\u00e2n gi\u1ea3i (d\u00f2ng ph\u00e2n gi\u1ea3i):<\/strong> \u0111i\u1ec1u n\u00e0y quy\u1ebft \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 chi ti\u1ebft. C\u00e0ng nhi\u1ec1u d\u00f2ng cung c\u1ea5p \u0111\u1ed9 ph\u00e2n gi\u1ea3i t\u1ea7n s\u1ed1 t\u1ed1t h\u01a1n, cho ph\u00e9p b\u1ed9 ph\u00e2n t\u00edch t\u00e1ch hai \u0111\u1ec9nh n\u1eb1m s\u00e1t nhau \u2014 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c sideband trong ph\u00e2n t\u00edch h\u1ed9p s\u1ed1. S\u1ef1 c\u00e2n b\u1eb1ng l\u00e0 th\u1eddi gian l\u1ea5y m\u1eabu d\u00e0i h\u01a1n, m\u1ed9t m\u1ed1i quan h\u1ec7 m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 kh\u00e1m ph\u00e1 v\u1edbi m\u1ed9t <a href=\"https:\/\/vibromera.eu\/vi\/calculators\/fft-resolution-calculator\/\">M\u00e1y t\u00ednh \u0111\u1ed9 ph\u00e2n gi\u1ea3i FFT<\/a>.<\/li>\n<li><strong>Trung b\u00ecnh:<\/strong> \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c ph\u1ed5 s\u1ea1ch, \u1ed5n \u0111\u1ecbnh, b\u1ed9 ph\u00e2n t\u00edch l\u1ea5y nhi\u1ec1u &#8220;\u1ea3nh ch\u1ee5p&#8221; v\u00e0 l\u1ea5y trung b\u00ecnh ch\u00fang, lo\u1ea1i b\u1ecf nhi\u1ec5u ng\u1eabu nhi\u00ean v\u00e0 ti\u1ebft l\u1ed9 rung \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh tr\u1ea1ng th\u00e1i th\u1ef1c s\u1ef1.<\/li>\n<li><strong>C\u1eeda s\u1ed5:<\/strong> m\u1ed9t h\u00e0m to\u00e1n h\u1ecdc nh\u01b0 c\u1eeda s\u1ed5 Hanning \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho m\u1ed7i kh\u1ed1i d\u1eef li\u1ec7u \u0111\u1ec3 ng\u0103n ch\u1eb7n <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/spectral-leakage\/\">r\u00f2 r\u1ec9 ph\u1ed5<\/a>, n\u1ebfu kh\u00f4ng s\u1ebd l\u00e0m m\u1edd v\u00e0 bi\u1ebfn d\u1ea1ng c\u00e1c bi\u00ean \u0111\u1ed9 v\u00e0 h\u00ecnh d\u1ea1ng c\u1ee7a c\u00e1c \u0111\u1ec9nh.<\/li>\n<\/ul>\n<h2>5. Ph\u00e2n T\u00edch Ph\u1ed5 T\u1ea1i Hi\u1ec7n Tr\u01b0\u1eddng<\/h2>\n<p>Ph\u00e2n t\u00edch ph\u1ed5 kh\u00f4ng gi\u1edbi h\u1ea1n trong ph\u00f2ng th\u00ed nghi\u1ec7m \u2014 n\u00f3 ch\u00ednh x\u00e1c l\u00e0 nh\u1eefng g\u00ec m\u1ed9t k\u1ef9 s\u01b0 b\u1ea3o tr\u00ec th\u1ef1c hi\u1ec7n t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng b\u1eb1ng m\u1ed9t c\u00f4ng c\u1ee5 di \u0111\u1ed9ng. B\u1ed9 ph\u00e2n t\u00edch hai k\u00eanh nh\u01b0 <a href=\"https:\/\/vibromera.eu\/vi\/san-pham\/balanset-1\/\">Balanset-1A<\/a> l\u1ea5y m\u1eabu t\u00edn hi\u1ec7u t\u1eeb m\u1ed9t <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/accelerometer\/\">c\u1ea3m bi\u1ebfn gia t\u1ed1c<\/a> tr\u00ean nh\u00e0 \u1ed5, ch\u1ea1y FFT, v\u00e0 tr\u00ecnh b\u00e0y ph\u1ed5 t\u1ea1i ch\u1ed7, \u0111\u1ec3 k\u1ef9 thu\u1eadt vi\u00ean c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh l\u1ed7i v\u00e0 h\u00e0nh \u0111\u1ed9ng tr\u01b0\u1edbc ca l\u00e0m vi\u1ec7c ti\u1ebfp theo. B\u1edfi v\u00ec c\u00f9ng m\u1ed9t c\u00f4ng c\u1ee5 c\u0169ng \u0111\u1ecdc tr\u1ee5c <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/phase\/\">pha<\/a> t\u1eeb m\u1ed9t <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/tachometer\/\">m\u00e1y \u0111o t\u1ed1c \u0111\u1ed9 quay<\/a>, m\u1ed9t ch\u1ea9n \u0111o\u00e1n v\u1ec1 m\u1ea5t c\u00e2n b\u1eb1ng 1\u00d7 c\u00f3 th\u1ec3 chuy\u1ec3n th\u1eb3ng v\u00e0o s\u1eeda ch\u1eefa c\u00e2n b\u1eb1ng m\u00e0 kh\u00f4ng c\u1ea7n thay \u0111\u1ed5i c\u00f4ng c\u1ee5 \u2014 ch\u1ea9n \u0111o\u00e1n v\u00e0 s\u1eeda ch\u1eefa trong m\u1ed9t quy tr\u00ecnh l\u00e0m vi\u1ec7c.<\/p>\n<h2>6. Ph\u00e2n T\u00edch Ph\u1ed5 so v\u1edbi D\u1ea1ng S\u00f3ng Th\u1eddi Gian<\/h2>\n<p>Ph\u1ed5 l\u00e0 m\u1ea1nh m\u1ebd, nh\u01b0ng n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 to\u00e0n b\u1ed9 b\u1ee9c tranh. L\u1ea5y trung b\u00ecnh v\u00e0 FFT c\u00f3 th\u1ec3 \u1ea9n c\u00e1c s\u1ef1 ki\u1ec7n qu\u00e1 \u0111\u1ed9 ng\u1eafn, s\u1eafc n\u00e9t \u2014 t\u00e1c \u0111\u1ed9ng c\u1ee7a m\u1ed9t r\u0103ng b\u00e1nh r\u0103ng n\u1ee9t ho\u1eb7c m\u1ed9t \u1ed5 bi bong tr\u00f3c \u2014 r\u00f5 r\u00e0ng trong d\u1ea1ng s\u00f3ng th\u1eddi gian th\u00f4. Do \u0111\u00f3, c\u00e1c nh\u00e0 ph\u00e2n t\u00edch c\u00f3 k\u1ef9 n\u0103ng coi hai ch\u1ebf \u0111\u1ed9 xem l\u00e0 \u0111\u1ed1i t\u00e1c: ph\u1ed5 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh <em>\u0111\u00f3 l\u00e0<\/em> t\u1ea7n s\u1ed1 mang n\u0103ng l\u01b0\u1ee3ng, d\u1ea1ng s\u00f3ng th\u1eddi gian \u0111\u1ec3 h\u1ecdc <em>L\u00e0m sao<\/em> n\u0103ng l\u01b0\u1ee3ng \u0111\u00f3 \u0111\u01b0\u1ee3c cung c\u1ea5p. V\u1ec1 b\u1ea3n ch\u1ea5t, ph\u00e2n t\u00edch ph\u1ed5 l\u00e0 c\u1ed1t l\u00f5i c\u1ee7a ch\u1ea9n \u0111o\u00e1n rung \u0111\u1ed9ng hi\u1ec7n \u0111\u1ea1i, cung c\u1ea5p ch\u1ebf \u0111\u1ed9 xem &#8220;X-ray&#8221; r\u00f5 r\u00e0ng c\u1ee7a c\u00e1c l\u1ef1c v\u00e0 chuy\u1ec3n \u0111\u1ed9ng x\u1ea3y ra b\u00ean trong m\u1ed9t m\u00e1y \u2014 v\u00e0 \u0111\u1ecdc c\u00f9ng v\u1edbi d\u1ea1ng s\u00f3ng v\u00e0 tham chi\u1ebfu \u0111\u01b0\u1eddng c\u01a1 s\u1edf \u00e2m thanh, n\u00f3 bi\u1ebfn rung \u0111\u1ed9ng th\u00f4 th\u00e0nh c\u00e1c quy\u1ebft \u0111\u1ecbnh t\u1ef1 tin.<\/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>Gi\u1edbi thi\u1ec7u v\u1ec1 Ph\u00e2n t\u00edch quang ph\u1ed5, qu\u00e1 tr\u00ecnh ph\u00e2n t\u00edch t\u00edn hi\u1ec7u rung \u0111\u1ed9ng ph\u1ee9c t\u1ea1p th\u00e0nh c\u00e1c t\u1ea7n s\u1ed1 th\u00e0nh ph\u1ea7n v\u00e0 vai tr\u00f2 trung t\u00e2m c\u1ee7a n\u00f3 trong ch\u1ea9n \u0111o\u00e1n l\u1ed7i m\u00e1y m\u00f3c.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-246","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/glossary\/246","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":1,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/glossary\/246\/revisions"}],"predecessor-version":[{"id":101205,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/glossary\/246\/revisions\/101205"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/media?parent=246"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/categories?post=246"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/tags?post=246"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}