{"id":114,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/envelope-spectrum\/"},"modified":"2026-05-23T22:36:25","modified_gmt":"2026-05-23T22:36:25","slug":"envelope-spectrum","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/vi\/glossary\/envelope-spectrum\/","title":{"rendered":"Ph\u1ed5 bao l\u00e0 g\u00ec? Ph\u00e2n t\u00edch t\u00edn hi\u1ec7u gi\u1ea3i \u0111i\u1ec1u ch\u1ebf"},"content":{"rendered":"<h1>Hi\u1ec3u r\u00f5 Ph\u1ed5 ph\u1ee7<\/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\/114?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\/114?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\/114?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\/114?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\/114?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\/114?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\/114?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\/114?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\/114?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\/114?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\/114?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\/114?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\/114?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\/114?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>The <strong>ph\u1ed5 bao<\/strong> l\u00e0 t\u1ea7n s\u1ed1 <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/spectrum\/\">ph\u1ed5<\/a> thu \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1ch t\u00ednh to\u00e1n <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/fft\/\">FFT<\/a> c\u1ee7a bao \u2014 t\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c kh\u1eed \u0111i\u1ec1u bi\u1ebfn bi\u00ean \u0111\u1ed9 \u2014 \u0111\u01b0\u1ee3c t\u1ea1o ra trong <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/envelope-analysis\/\">ph\u00e2n t\u00edch \u0111\u01b0\u1eddng bao<\/a>. N\u00f3 ti\u1ebft l\u1ed9 <em>t\u1ed1c \u0111\u1ed9 l\u1eb7p l\u1ea1i<\/em> c\u1ee7a c\u00e1c t\u00e1c \u0111\u1ed9ng v\u00e0 \u0111i\u1ec1u bi\u1ebfn \u0111\u01b0\u1ee3c ch\u00f4n v\u00f9i trong t\u1ea7n s\u1ed1 cao <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/vibration\/\">rung \u0111\u1ed9ng<\/a>, \u0111i\u1ec1u n\u00e0y l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh k\u1ef9 thu\u1eadt m\u1ea1nh m\u1ebd nh\u1ea5t cho vi\u1ec7c ph\u00e1t hi\u1ec7n <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/bearing-defects\/\">khi\u1ebfm khuy\u1ebft c\u1ee7a v\u00f2ng bi d\u1ea1ng con l\u0103n<\/a>. Trong khi ph\u1ed5 v\u1eadn t\u1ed1c ti\u00eau chu\u1ea9n cho th\u1ea5y t\u1ea7n s\u1ed1 s\u00f3ng mang \u2014 nh\u1eefng c\u1ed9ng h\u01b0\u1edfng c\u01a1 c\u1ea5u m\u00e0 c\u00e1c t\u00e1c \u0111\u1ed9ng ph\u00e1t ra \u2014 ph\u1ed5 bao bao l\u1ea1i cho th\u1ea5y t\u1ed1c \u0111\u1ed9 m\u00e0 nh\u1eefng t\u00e1c \u0111\u1ed9ng n\u00e0y x\u1ea3y ra, \u00e1nh x\u1ea1 tr\u1ef1c ti\u1ebfp v\u00e0o <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/bearing-fault-frequencies\/\">t\u1ea7n s\u1ed1 l\u1ed7i \u1ed5 tr\u1ee5c<\/a> BPFO, BPFI, BSF v\u00e0 FTF.<\/p>\n<p>N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, ph\u1ed5 bao bao l\u00e0 \u0111\u1ec3 ch\u1ea9n \u0111o\u00e1n v\u00f2m bi nh\u01b0 nh\u1eefng g\u00ec ph\u1ed5 th\u00f4ng th\u01b0\u1eddng l\u00e0 \u0111\u1ec3 <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/unbalance\/\">m\u1ea5t c\u00e2n b\u1eb1ng<\/a> and <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/misalignment\/\">s\u1ef1 kh\u00f4ng th\u1eb3ng h\u00e0ng<\/a>: c\u00f4ng c\u1ee5 ch\u00ednh cho ph\u00e9p ph\u00e1t hi\u1ec7n s\u1edbm c\u00e1c l\u1ed7i. N\u00f3 t\u00e1ch c\u00e1c t\u1ea7n s\u1ed1 ch\u1ea9n \u0111o\u00e1n s\u1ea1ch s\u1ebd ra kh\u1ecfi &#8220;nhi\u1ec5u&#8221; t\u1ea7n s\u1ed1 cao m\u00e0 ph\u1ed5 v\u1eadn t\u1ed1c kh\u00f4ng th\u1ec3 ph\u00e2n gi\u1ea3i.<\/p>\n<h2>1. C\u00e1ch Ph\u1ed5 Bao \u0110\u01b0\u1ee3c T\u1ea1o Ra<\/h2>\n<p>M\u1ed9t l\u1ed7i \u0111\u1ecbnh v\u1ecb &mdash; m\u1ed9t r\u01a1i tr\u00ean \u0111\u01b0\u1eddng ch\u1ea1y, m\u1ed9t s\u00e1t tr\u00ean con l\u0103n &mdash; va ch\u1ea1m m\u1ed9t ti\u1ebfp x\u00fac c\u1ee9ng m\u1ed9t l\u1ea7n cho m\u1ed7i l\u01b0\u1ee3t \u0111i v\u00e0 k\u00edch th\u00edch c\u00e1c c\u1ed9ng h\u01b0\u1edfng t\u1ef1 nhi\u00ean c\u1ee7a v\u00f2ng bi \u1edf kho\u1ea3ng v\u00e0i kHz. Nh\u1eefng c\u1ed9ng h\u01b0\u1edfng n\u00e0y l\u00e0 <em>h\u00e3ng v\u1eadn chuy\u1ec3n<\/em>; d\u00e3y t\u00e1c \u0111\u1ed9ng th\u01b0\u1eddng xuy\u00ean <em>\u0111i\u1ec1u ch\u1ebf<\/em> bi\u00ean \u0111\u1ed9 c\u1ee7a s\u00f3ng mang. Qu\u00e1 tr\u00ecnh bao t\u00e1ch b\u1ecf s\u00f3ng mang v\u00e0 gi\u1eef l\u1ea1i \u0111i\u1ec1u bi\u1ebfn:<\/p>\n<ol>\n<li><strong>B\u1ed9 l\u1ecdc th\u00f4ng d\u1ea3i:<\/strong> c\u00f4 l\u1eadp m\u1ed9t d\u00e3y t\u1ea7n s\u1ed1 cao gi\u00e0u n\u0103ng l\u01b0\u1ee3ng c\u1ed9ng h\u01b0\u1edfng (th\u01b0\u1eddng l\u00e0 1&ndash;10 kHz), lo\u1ea1i b\u1ecf \u0111\u1ed9 rung t\u1ea7n s\u1ed1 th\u1ea5p t\u1eeb m\u1ea5t c\u00e2n b\u1eb1ng v\u00e0 sai l\u1ec7ch. A <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/band-pass-filter\/\">b\u1ed9 l\u1ecdc th\u00f4ng d\u1ea3i<\/a> th\u1ef1c hi\u1ec7n c\u00f4ng vi\u1ec7c n\u00e0y.<\/li>\n<li><strong>Ph\u00e1t hi\u1ec7n bao (<a href=\"https:\/\/vibromera.eu\/vi\/glossary\/demodulation\/\">gi\u1ea3i \u0111i\u1ec1u ch\u1ebf<\/a>):<\/strong> ch\u1ec9nh l\u01b0u t\u00edn hi\u1ec7u l\u1ecdc v\u00e0 v\u1ebd \u0111\u01b0\u1eddng vi\u1ec1n c\u1ee7a bi\u00ean \u0111\u1ed9 c\u1ee7a n\u00f3 &mdash; bao.<\/li>\n<li><strong>B\u1ed9 l\u1ecdc th\u00f4ng th\u1ea5p:<\/strong> l\u00e0m m\u1ecbn bao \u0111\u1ec3 lo\u1ea1i b\u1ecf b\u1ea5t k\u1ef3 g\u1ee3n s\u00f3ng s\u00f3ng mang d\u01b0 th\u1eeba n\u00e0o.<\/li>\n<li><strong>FFT:<\/strong> bi\u1ebfn bao th\u00e0nh mi\u1ec1n t\u1ea7n s\u1ed1.<\/li>\n<li><strong>K\u1ebft qu\u1ea3:<\/strong> m\u1ed9t ph\u1ed5 bao c\u00f3 c\u00e1c \u0111\u1ec9nh n\u1eb1m \u1edf c\u00e1c t\u1ed1c \u0111\u1ed9 l\u1eb7p l\u1ea1i t\u00e1c \u0111\u1ed9ng.<\/li>\n<\/ol>\n<p>\u00dd t\u01b0\u1edfng ch\u00ednh l\u00e0 \u0111i\u1ec1u bi\u1ebfn c\u00e1c t\u1ea7n s\u1ed1 \u0111\u01b0\u1ee3c kh\u00f4i ph\u1ee5c b\u1edfi chu\u1ed7i n\u00e0y <em>l\u00e0<\/em> c\u00e1c t\u1ea7n s\u1ed1 l\u1ed7i v\u00f2ng bi. S\u00f3ng mang t\u1ea7n s\u1ed1 cao ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t s\u1ee9 gi\u1ea3, rung m\u1ed7i khi m\u1ed9t khi\u1ebfm khuy\u1ebft b\u1ecb va ch\u1ea1m.<\/p>\n<h2>2. \u0110\u1ecdc Ph\u1ed5 ph\u1ee7<\/h2>\n<h3>V\u00f2ng bi l\u00e0nh m\u1ea1nh<\/h3>\n<ul>\n<li>M\u1ee9c ph\u1ee7 t\u1ed5ng th\u1ec3 th\u1ea5p.<\/li>\n<li>M\u1ed9t d\u1ea5u v\u1ebft ph\u1eb3ng ho\u1eb7c c\u00f3 \u0111\u1ed9 d\u1ed1c nh\u1eb9 kh\u00f4ng c\u00f3 c\u00e1c \u0111\u1ec9nh ri\u00ean bi\u1ec7t.<\/li>\n<li>S\u00e0n nhi\u1ec5u \u1edf ho\u1eb7c d\u01b0\u1edbi \u0111\u1ed9 nh\u1ea1y c\u1ee7a thi\u1ebft b\u1ecb.<\/li>\n<\/ul>\n<h3>V\u00f2ng bi b\u1ecb h\u1ecfng<\/h3>\n<ul>\n<li><strong>\u0110\u1ec9nh ch\u00ednh:<\/strong> \u1edf m\u1ed9t t\u1ea7n s\u1ed1 l\u1ed7i v\u00f2ng bi &mdash; <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/bpfo\/\">BPFO<\/a>, <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/bpfi\/\">BPFI<\/a>, <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/bsf\/\">BSF<\/a> ho\u1eb7c <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/ftf\/\">FTF<\/a>.<\/li>\n<li><strong>S\u00f3ng h\u00e0i:<\/strong> 2\u00d7, 3\u00d7, 4\u00d7 c\u1ee7a t\u1ea7n s\u1ed1 l\u1ed7i xu\u1ea5t hi\u1ec7n v\u00e0 t\u0103ng l\u00ean khi khi\u1ebfm khuy\u1ebft tr\u1edf n\u00ean t\u1ed3i t\u1ec7 h\u01a1n.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/vi\/glossary\/sidebands\/\">D\u1ea3i b\u00ean<\/a>:<\/strong> c\u00e1ch nhau \u1edf l\u1ed3ng (FTF) ho\u1eb7c <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/running-speed\/\">t\u1ed1c \u0111\u1ed9 ch\u1ea1y<\/a> Kho\u1ea3ng (1\u00d7) xung quanh \u0111\u1ec9nh l\u1ed7i, ph\u1ea3n \u00e1nh \u0111i\u1ec1u bi\u1ebfn t\u1ea3i khi khi\u1ebfm khuy\u1ebft quay v\u00e0o v\u00e0 ra kh\u1ecfi v\u00f9ng t\u1ea3i.<\/li>\n<li><strong>S\u00e0n \u0111\u01b0\u1ee3c n\u00e2ng cao:<\/strong> s\u00e0n nhi\u1ec5u t\u1ed5ng th\u1ec3 t\u0103ng l\u00ean khi s\u1ef1 xu\u1ed1ng c\u1ea5p b\u1ec1 m\u1eb7t lan r\u1ed9ng.<\/li>\n<\/ul>\n<p>\u0110\u1ec9nh t\u01b0\u01a1ng \u1ee9ng cho b\u1ea1n bi\u1ebft <em>\u0111\u00f3 l\u00e0<\/em> ph\u1ea7n t\u1eed b\u1ecb h\u1ecfng: m\u1ed9t \u0111\u1ec9nh \u1edf BPFO ch\u1ec9 ra cu\u1ed9c \u0111ua ngo\u00e0i, BPFI ch\u1ec9 ra cu\u1ed9c \u0111ua b\u00ean trong, BSF ch\u1ec9 ra m\u1ed9t ph\u1ea7n t\u1eed l\u0103n, v\u00e0 FTF ch\u1ec9 ra l\u1ed3ng. V\u00ec BPFI v\u00e0 BSF quay qua v\u00f9ng t\u1ea3i, ch\u00fang b\u1ecb \u0111i\u1ec1u bi\u00ean \u0111\u1ed9 v\u00e0 do \u0111\u00f3 b\u1ecb bao quanh b\u1edfi c\u00e1c d\u1ea3i b\u00ean; m\u1ed9t khi\u1ebfm ph\u00e1t BPFO trong v\u00f9ng t\u1ea3i t\u0129nh th\u01b0\u1eddng kh\u00f4ng c\u00f3.<\/p>\n<h2>3. T\u1ea1i sao n\u00f3 v\u01b0\u1ee3t tr\u1ed9i so v\u1edbi Ph\u1ed5 ti\u00eau chu\u1ea9n<\/h2>\n<p>Ba t\u00ednh ch\u1ea5t l\u00e0m cho ph\u1ed5 bao g\u00f3i kh\u00f4ng th\u1ec3 thi\u1ebfu cho c\u00f4ng vi\u1ec7c v\u00f2ng bi:<\/p>\n<ul>\n<li><strong>Ph\u00e1t hi\u1ec7n s\u1edbm:<\/strong> n\u00f3 th\u01b0\u1eddng xuy\u00ean ph\u00e1t hi\u1ec7n thi\u1ec7t h\u1ea1i ban \u0111\u1ea7u nhi\u1ec1u th\u00e1ng \u2014 th\u01b0\u1eddng l\u00e0 6 \u0111\u1ebfn 18 \u2014 tr\u01b0\u1edbc khi m\u1ed9t l\u1ed7i tr\u1edf n\u00ean r\u00f5 r\u00e0ng trong ph\u1ed5 v\u1eadn t\u1ed1c, cung c\u1ea5p th\u1eddi gian d\u1eabn t\u1ed1i \u0111a cho c\u00e1c b\u1ed9 ph\u1eadn v\u00e0 l\u1eadp k\u1ebf ho\u1ea1ch. N\u00f3 nh\u1ea1y c\u1ea3m v\u1edbi c\u00e1c spall si\u00eau nh\u1ecf t\u1ea1o ra h\u1ea7u nh\u01b0 kh\u00f4ng c\u00f3 n\u0103ng l\u01b0\u1ee3ng tr\u00ean thang \u0111\u1ed9 v\u1eadn t\u1ed1c.<\/li>\n<li><strong>C\u00e1c ch\u1eef k\u00fd l\u1ed7i r\u00f5 r\u00e0ng:<\/strong> v\u00ec m\u1ea5t c\u00e2n b\u1eb1ng v\u00e0 sai l\u1ec7ch \u0111\u01b0\u1ee3c l\u1ecdc ra tr\u01b0\u1edbc khi demodulation, c\u00e1c t\u1ea7n s\u1ed1 l\u1ed7i v\u00e0 c\u00e1c d\u1ea3i b\u00ean c\u1ee7a ch\u00fang n\u1ed5i b\u1eadt so v\u1edbi n\u1ec1n s\u1ea1ch, d\u1ec5 \u0111\u1ecdc h\u01a1n nhi\u1ec1u so v\u1edbi ph\u1ed5 b\u0103ng th\u00f4ng \u0111\u00f4ng \u0111\u00fac.<\/li>\n<li><strong>N\u1eafm b\u1eaft s\u1ef1 ki\u1ec7n n\u0103ng l\u01b0\u1ee3ng th\u1ea5p:<\/strong> m\u1ed9t t\u00e1c \u0111\u1ed9ng nh\u1ecf x\u1ea3y ra mang n\u0103ng l\u01b0\u1ee3ng kh\u00f4ng \u0111\u00e1ng k\u1ec3 \u1edf t\u1ea7n s\u1ed1 th\u1ea5p nh\u01b0ng k\u00edch th\u00edch c\u00e1c c\u1ed9ng h\u01b0\u1edfng t\u1ea7n s\u1ed1 cao m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. X\u1eed l\u00fd ph\u1ee7 khu\u1ebfch \u0111\u1ea1i ch\u00ednh x\u00e1c nh\u1eefng t\u00edn hi\u1ec7u ch\u1ea9n \u0111o\u00e1n t\u1ea7n s\u1ed1 cao y\u1ebfu n\u00e0y.<\/li>\n<\/ul>\n<p>\u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao ph\u00e2n t\u00edch bao g\u00f3i ng\u1ed3i c\u1ea1nh <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/shock-pulse-method\/\">ph\u01b0\u01a1ng ph\u00e1p xung s\u1ed1c<\/a> and <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/spike-energy\/\">n\u0103ng l\u01b0\u1ee3ng xung<\/a> l\u00e0 m\u1ed9t g\u00f3c c\u1ee7a gi\u00e1m s\u00e1t t\u00ecnh tr\u1ea1ng v\u00f2ng bi, v\u00e0 t\u1ea1i sao <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/kurtosis\/\">\u0111\u1ed9 nh\u1ecdn<\/a> th\u01b0\u1eddng t\u0103ng l\u00ean t\u1eebng b\u01b0\u1edbc v\u1edbi m\u1ee9c bao g\u00f3i.<\/p>\n<h2>4. Quy Tr\u00ecnh Di\u1ec5n Gi\u1ea3i T\u1eebng B\u01b0\u1edbc<\/h2>\n<p>\u0110\u1ec3 bi\u1ebfn m\u1ed9t bi\u1ec3u \u0111\u1ed3 bao g\u00f3i th\u00e0nh ch\u1ea9n \u0111o\u00e1n:<\/p>\n<ol>\n<li><strong>T\u00ednh to\u00e1n c\u00e1c t\u1ea7n s\u1ed1 l\u1ed7i<\/strong> cho v\u00f2ng bi \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t \u2014 BPFO, BPFI, BSF v\u00e0 FTF \u2014 t\u1eeb h\u00ecnh h\u1ecdc c\u1ee7a n\u00f3 v\u00e0 t\u1ed1c \u0111\u1ed9 tr\u1ee5c. C\u1ee7a ch\u00fang t\u00f4i <a href=\"https:\/\/vibromera.eu\/vi\/calculators\/bearing-defect-frequencies\/\">M\u00e1y t\u00ednh t\u1ea7n su\u1ea5t l\u1ed7i \u1ed5 tr\u1ee5c<\/a> tr\u1ea3 l\u1ea1i c\u1ea3 b\u1ed1n trong v\u00e0i gi\u00e2y, v\u00e0 <a href=\"https:\/\/vibromera.eu\/vi\/calculators\/harmonic-frequency-calculator\/\">M\u00e1y t\u00ednh t\u1ea7n s\u1ed1 h\u00e0i<\/a> gi\u00fap \u00e1nh x\u1ea1 c\u00e1c b\u1ed9.<\/li>\n<li><strong>T\u00ecm ki\u1ebfm trong d\u1ea3i t\u1ea7n s\u1ed1<\/strong> cho c\u00e1c \u0111\u1ec9nh \u1edf nh\u1eefng t\u1ea7n s\u1ed1 \u0111\u00f3, cho ph\u00e9p kho\u1ea3ng \u00b15% \u0111\u1ec3 tr\u01b0\u1ee3t v\u00e0 dung sai t\u00ednh to\u00e1n.<\/li>\n<li><strong>X\u00e1c nh\u1eadn b\u1eb1ng c\u00e1c h\u1ecda \u00e2m<\/strong> \u2014 m\u1ed9t l\u1ed7i v\u00f2ng bi th\u1ef1c s\u1ef1 th\u1ec3 hi\u1ec7n m\u1ed9t chu\u1ed7i, kh\u00f4ng ph\u1ea3i m\u1ed9t \u0111\u1ec9nh \u0111\u01a1n l\u1ebb.<\/li>\n<li><strong>Ki\u1ec3m tra kho\u1ea3ng c\u00e1ch d\u1ea3i ph\u1ee5<\/strong> \u0111\u1ec3 x\u00e1c nh\u1eadn th\u00eam v\u1ec1 ngu\u1ed3n.<\/li>\n<li><strong>Ch\u1ea9n \u0111o\u00e1n v\u00e0 ph\u00e2n lo\u1ea1i<\/strong> khi\u1ebfm ph\u00e1t t\u1eeb ph\u1ea7n t\u1eed ph\u00f9 h\u1ee3p v\u00e0 bi\u00ean \u0111\u1ed9.<\/li>\n<\/ol>\n<p>M\u1ed9t thang \u0111\u1ed9 nghi\u00eam tr\u1ecdng kho\u1ea3ng, \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng g c\u1ee7a gia t\u1ed1c bao g\u00f3i, gi\u00fap \u01b0u ti\u00ean h\u00e0nh \u0111\u1ed9ng: m\u1ed9t <strong>m\u1edbi ph\u00e1t sinh<\/strong> khi\u1ebfm khuy\u1ebft (\u22480,5\u20131 g) th\u1ec3 hi\u1ec7n m\u1ed9t \u0111\u1ec9nh nh\u1ecf \u0111\u01a1n l\u1ebb \u2014 gi\u00e1m s\u00e1t h\u00e0ng th\u00e1ng; m\u1ed9t <strong>s\u1edbm<\/strong> khi\u1ebfm ph\u00e1t (\u22481\u20133 g) cho th\u1ea5y m\u1ed9t \u0111\u1ec9nh r\u00f5 r\u00e0ng v\u1edbi m\u1ed9t ho\u1eb7c hai h\u00e0i \u2014 gi\u00e1m s\u00e1t h\u00e0ng tu\u1ea7n v\u00e0 l\u1eadp k\u1ebf ho\u1ea1ch thay th\u1ebf trong v\u00f2ng v\u00e0i th\u00e1ng; m\u1ed9t <strong>trung b\u00ecnh<\/strong> khi\u1ebfm ph\u00e1t (\u22483\u201310 g) cho th\u1ea5y m\u1ed9t \u0111\u1ec9nh m\u1ea1nh, nhi\u1ec1u h\u00e0i v\u00e0 c\u00e1c d\u1ea3i b\u00ean \u2014 l\u1eadp k\u1ebf ho\u1ea1ch thay th\u1ebf trong v\u00f2ng v\u00e0i tu\u1ea7n; v\u00e0 m\u1ed9t <strong>n\u1eb7ng<\/strong> khi\u1ebfm ph\u00e1t (&gt;10 g) cho th\u1ea5y bi\u00ean \u0111\u1ed9 r\u1ea5t cao, nhi\u1ec1u h\u00e0i v\u00e0 m\u1ed9t s\u00e0n n\u00e2ng cao \u2014 thay th\u1ebf ngay l\u1eadp t\u1ee9c. C\u00e1c ng\u01b0\u1ee1ng ch\u00ednh x\u00e1c ph\u1ee5 thu\u1ed9c v\u00e0o k\u00edch th\u01b0\u1edbc v\u00e0 t\u1ed1c \u0111\u1ed9 v\u00f2ng bi, v\u00ec v\u1eady lu\u00f4n di\u1ec5n gi\u1ea3i ch\u00fang so v\u1edbi m\u1ed9t <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/baseline\/\">\u0111\u01b0\u1eddng c\u01a1 s\u1edf<\/a> v\u00e0 l\u1ecbch s\u1eed <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/trending\/\">xu h\u01b0\u1edbng<\/a> c\u1ee7a ri\u00eang b\u1ea1n.<\/p>\n<h2>5. \u1ee8ng D\u1ee5ng Ph\u1ed5 Bao Trong C\u00f4ng T\u00e1c Th\u1ef1c \u0110\u1ecba<\/h2>\n<p>Trong m\u1ed9t <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/condition-monitoring\/\">gi\u00e1m s\u00e1t t\u00ecnh tr\u1ea1ng<\/a> ch\u01b0\u01a1ng tr\u00ecnh, ph\u1ed5 bao ph\u1ea3i c\u00f3 trong m\u1ed7i tuy\u1ebfn ki\u1ec3m tra v\u00f2ng bi: theo d\u00f5i xu h\u01b0\u1edbng bi\u00ean \u0111\u1ed9 bao t\u1ea1i m\u1ed7i t\u1ea7n s\u1ed1 l\u1ed7i v\u00e0 b\u1ea1n s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c c\u1ea3nh b\u00e1o s\u1edbm h\u01a1n nhi\u1ec1u \u2014 v\u00e0 c\u1ee5 th\u1ec3 h\u01a1n nhi\u1ec1u \u2014 so v\u1edbi theo d\u00f5i \u0111\u1ed9 rung to\u00e0n ph\u1ed5 m\u1ed9t m\u00ecnh c\u00f3 th\u1ec3 cung c\u1ea5p. Trong kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1, n\u00f3 ch\u1ee9ng minh gi\u00e1 tr\u1ecb c\u1ee7a n\u00f3 khi m\u1ee9c \u0111\u1ed9 t\u1ed5ng th\u1ec3 cao nh\u01b0ng ph\u1ed5 ti\u00eau chu\u1ea9n kh\u00f4ng r\u00f5 r\u00e0ng, khi nghi ng\u1edd c\u00f3 v\u1ea5n \u0111\u1ec1 v\u1edbi v\u00f2ng bi, khi b\u1ea1n ph\u1ea3i x\u00e1c nh\u1eadn r\u1eb1ng vi\u1ec7c thay th\u1ebf th\u1ef1c s\u1ef1 l\u00e0 c\u1ea7n thi\u1ebft, ho\u1eb7c khi b\u1ea1n c\u1ea7n x\u00e1c \u0111\u1ecbnh <em>\u0111\u00f3 l\u00e0<\/em> v\u00f2ng bi trong m\u1ed9t chu\u1ed7i v\u00f2ng bi \u0111a chi\u1ec1u \u0111ang b\u1ecb h\u1ecfng. M\u1ed9t thi\u1ebft b\u1ecb hai k\u00eanh c\u00f3 t\u00ednh c\u00e1ch \u0111\u1ed9ng nh\u01b0 <a href=\"https:\/\/vibromera.eu\/vi\/san-pham\/balanset-1\/\">Balanset-1A<\/a> cho ph\u00e9p m\u1ed9t k\u1ef9 thu\u1eadt vi\u00ean n\u1eafm b\u1eaft \u0111\u1ed9 rung t\u1ea7n s\u1ed1 cao tr\u1ef1c ti\u1ebfp \u1edf m\u1ed7i v\u1ecf m\u00e1y b\u1eb1ng <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/accelerometer\/\">c\u1ea3m bi\u1ebfn gia t\u1ed1c<\/a>, do \u0111\u00f3 c\u00f9ng m\u1ed9t l\u1ea7n ki\u1ec3m tra th\u1ef1c \u0111\u1ecba \u0111\u1ec3 ki\u1ec3m tra <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/residual-unbalance\/\">m\u1ea5t c\u00e2n b\u1eb1ng c\u00f2n l\u1ea1i<\/a> sau m\u1ed9t c\u00f4ng vi\u1ec7c c\u00e2n b\u1eb1ng c\u0169ng c\u00f3 th\u1ec3 s\u00e0ng l\u1ecdc c\u00e1c v\u00f2ng bi \u0111\u1ec3 ph\u00e1t hi\u1ec7n t\u1ed5n th\u01b0\u01a1ng s\u01a1 khai.<\/p>\n<h2>6. Ph\u1ed5 Bao Quanh so v\u1edbi Ph\u00e2n T\u00edch Bao Quanh<\/h2>\n<p>Hai thu\u1eadt ng\u1eef n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng thay th\u1ebf cho nhau, nh\u01b0ng c\u1ea7n ph\u1ea3i gi\u1eef cho h\u1ec7 th\u1ed1ng ph\u00e2n c\u1ea5p r\u00f5 r\u00e0ng. <strong>Ph\u00e2n t\u00edch \u0111\u01b0\u1eddng bao<\/strong> l\u00e0 quy tr\u00ecnh ho\u00e0n ch\u1ec9nh \u2014 l\u1ecdc d\u1ea3i th\u00f4ng, gi\u1ea3i \u0111i\u1ec1u bi\u1ebfn v\u00e0 FFT. <strong>t\u00edn hi\u1ec7u bao quanh<\/strong> l\u00e0 d\u1ea1ng s\u00f3ng gi\u1ea3i \u0111i\u1ec1u bi\u1ebfn trong mi\u1ec1n th\u1eddi gian, m\u1ed9t s\u1ea3n ph\u1ea9m trung gian. <strong>ph\u1ed5 bao<\/strong> l\u00e0 bi\u1ec3u \u0111\u1ed3 t\u1ea7n s\u1ed1 cu\u1ed1i c\u00f9ng, s\u1ea3n ph\u1ea9m c\u00f3 th\u1ec3 cung c\u1ea5p m\u00e0 nh\u00e0 ph\u00e2n t\u00edch th\u1ef1c s\u1ef1 gi\u1ea3i th\u00edch. T\u00f3m l\u1ea1i, ph\u1ed5 bao l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a ph\u00e2n t\u00edch bao, v\u00e0 n\u00f3 l\u00e0 ti\u00eau chu\u1ea9n v\u00e0ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n l\u1ed7i v\u00f2ng bi: kh\u1ea3 n\u0103ng ph\u01a1i b\u00e0y c\u00e1c t\u1ea7n s\u1ed1 l\u1ed7i l\u00e2u tr\u01b0\u1edbc khi ch\u00fang xu\u1ea5t hi\u1ec7n trong ph\u1ed5 ti\u00eau chu\u1ea9n, k\u1ebft h\u1ee3p v\u1edbi c\u00e1c ch\u1eef k\u00fd r\u00f5 r\u00e0ng v\u00e0 d\u00e0nh ri\u00eang cho th\u00e0nh ph\u1ea7n, l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong b\u1ea5t k\u1ef3 b\u1ed9 c\u00f4ng c\u1ee5 b\u1ea3o tr\u00ec d\u1ef1 ph\u00f2ng n\u00e0o cho thi\u1ebft b\u1ecb quay.<\/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 ph\u1ed5 bao, FFT c\u1ee7a t\u00edn hi\u1ec7u bao t\u1eeb gi\u1ea3i \u0111i\u1ec1u ch\u1ebf, ph\u00e1t hi\u1ec7n t\u1ea7n s\u1ed1 l\u1ed7i \u1ed5 tr\u1ee5c b\u1eb1ng c\u00e1ch tr\u00edch xu\u1ea5t t\u1ed1c \u0111\u1ed9 l\u1eb7p l\u1ea1i va ch\u1ea1m t\u1eeb c\u1ed9ng h\u01b0\u1edfng t\u1ea7n s\u1ed1 cao.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-114","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/glossary\/114","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\/114\/revisions"}],"predecessor-version":[{"id":101282,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/glossary\/114\/revisions\/101282"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/media?parent=114"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/categories?post=114"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/tags?post=114"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}