{"id":239,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/sidebands\/"},"modified":"2026-05-23T22:39:33","modified_gmt":"2026-05-23T22:39:33","slug":"sidebands","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/vi\/glossary\/sidebands\/","title":{"rendered":"D\u1ea3i b\u00ean trong ph\u00e2n t\u00edch rung \u0111\u1ed9ng l\u00e0 g\u00ec?"},"content":{"rendered":"<h1>Hi\u1ec3u v\u1ec1 d\u1ea3i b\u00ean trong ph\u00e2n t\u00edch rung \u0111\u1ed9ng<\/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\/239?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\/239?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\/239?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\/239?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\/239?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\/239?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\/239?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\/239?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\/239?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\/239?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\/239?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\/239?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\/239?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\/239?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>D\u1ea3i b\u00ean<\/strong> l\u00e0 nh\u1eefng \u0111\u1ec9nh t\u1ea7n s\u1ed1 nh\u1ecf xu\u1ea5t hi\u1ec7n t\u1ea1i <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/fft\/\">Ph\u1ed5 FFT<\/a> \u1edf c\u00e1c kho\u1ea3ng c\u00e1ch b\u1eb1ng nhau \u1edf c\u1ea3 hai ph\u00eda c\u1ee7a m\u1ed9t \u0111\u1ec9nh trung t\u00e2m l\u1edbn h\u01a1n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <strong>t\u1ea7n s\u1ed1 s\u00f3ng mang<\/strong>. S\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a ch\u00fang l\u00e0 m\u1ed9t d\u1ea5u hi\u1ec7u ch\u1eafc ch\u1eafn c\u1ee7a <strong>\u0111i\u1ec1u ch\u1ebf<\/strong> \u2014 m\u1ed9t t\u00ecnh tr\u1ea1ng trong \u0111\u00f3 m\u1ed9t t\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c &#8220;in&#8221; l\u00ean t\u00edn hi\u1ec7u kh\u00e1c \u2014 v\u00e0 kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c sideband b\u1eb1ng t\u1ea7n s\u1ed1 c\u1ee7a t\u00edn hi\u1ec7u \u0111i\u1ec1u ch\u1ebf. B\u1edfi v\u00ec kho\u1ea3ng c\u00e1ch \u0111\u00f3 ch\u1ec9 tr\u1ef1c ti\u1ebfp t\u1ea1i th\u00e0nh ph\u1ea7n quay ch\u1ecbu tr\u00e1ch nhi\u1ec7m, c\u00e1c sideband n\u1eb1m trong s\u1ed1 nh\u1eefng m\u00f4 h\u00ecnh ch\u1ea9n \u0111o\u00e1n m\u1ea1nh m\u1ebd v\u00e0 ch\u1eafc ch\u1eafn nh\u1ea5t <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/vibration-analysis\/\">Ph\u00e2n t\u00edch rung \u0111\u1ed9ng<\/a>, \u0111\u1eb7c bi\u1ec7t l\u00e0 cho <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/gear-defects\/\">h\u1ed9p s\u1ed1<\/a> and <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/bearing-defects\/\">mang<\/a> ph\u00e1t hi\u1ec7n l\u1ed7i.<\/p>\n<h2>1. Sideband l\u00e0 g\u00ec: \u0110i\u1ec1u ch\u1ebf trong ph\u1ed5<\/h2>\n<p>\u0110i\u1ec1u ch\u1ebf l\u00e0 m\u1ed9t \u00fd t\u01b0\u1edfng quen thu\u1ed9c t\u1eeb radio, v\u00e0 c\u01a1 ch\u1ebf trong h\u1ed9p s\u1ed1 l\u00e0 gi\u1ed1ng nhau. M\u1ed9t t\u00f4ng cao c\u1ed1 \u0111\u1ecbnh (s\u00f3ng mang) c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 \u0111\u01b0\u1ee3c thay \u0111\u1ed5i b\u1edfi m\u1ed9t s\u1ef1 ki\u1ec7n l\u1eb7p l\u1ea1i ch\u1eadm h\u01a1n (c\u00f4ng c\u1ee5 \u0111i\u1ec1u ch\u1ebf); trong ph\u1ed5, s\u1ef1 thay \u0111\u1ed5i \u0111\u00f3 kh\u00f4ng l\u00e0m m\u1edd \u0111\u1ec9nh s\u00f3ng mang \u2014 n\u00f3 t\u00e1ch n\u0103ng l\u01b0\u1ee3ng th\u00e0nh c\u00e1c \u0111\u1ec9nh v\u1ec7 tinh \u0111\u1ed1i x\u1ee9ng. S\u00f3ng mang ch\u00ednh n\u00f3 th\u01b0\u1eddng l\u00e0 <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/forced-vibration\/\">rung c\u01b0\u1ee1ng b\u1ee9c<\/a> \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng, trong khi c\u00f4ng c\u1ee5 \u0111i\u1ec1u ch\u1ebf l\u00e0 nh\u1ecbp \u0111i\u1ec7u m\u1ed9t l\u1ea7n m\u1ed7i v\u00f2ng quay c\u1ee7a m\u1ed9t th\u00e0nh ph\u1ea7n b\u1ecb l\u1ed7i. Nh\u1eadn ra m\u00f4 h\u00ecnh n\u00e0y l\u00e0 \u0111i\u1ec1u ph\u00e2n bi\u1ec7t m\u1ed9t ch\u1ea9n \u0111o\u00e1n t\u1ef1 tin v\u1edbi m\u1ed9t \u0111o\u00e1n.<\/p>\n<h2>2. C\u00e1ch t\u1ea1o Sideband<\/h2>\n<p>Sideband \u0111\u01b0\u1ee3c t\u1ea1o khi t\u00edn hi\u1ec7u dao \u0111\u1ed9ng ch\u00ednh \u2014 s\u00f3ng mang \u2014 c\u00f3 bi\u00ean \u0111\u1ed9 c\u1ee7a n\u00f3 thay \u0111\u1ed5i theo th\u1eddi gian b\u1edfi t\u00edn hi\u1ec7u th\u1ee9 hai ch\u1eadm h\u01a1n: c\u00f4ng c\u1ee5 \u0111i\u1ec1u ch\u1ebf. V\u00ed d\u1ee5 kinh \u0111i\u1ec3n l\u00e0 m\u1ed9t chi\u1ebfc r\u0103ng b\u00e1nh xe b\u1ecb l\u1ed7i:<\/p>\n<ul>\n<li>The <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/gear-mesh-frequency\/\">T\u1ea7n s\u1ed1 \u0103n kh\u1edbp b\u00e1nh r\u0103ng (GMF)<\/a> l\u00e0 s\u00f3ng mang. \u0110\u00e2y l\u00e0 t\u1ea7n s\u1ed1 cao \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi s\u1ef1 kh\u1edbp n\u1ed1i b\u00ecnh th\u01b0\u1eddng c\u1ee7a c\u00e1c chi\u1ebfc r\u0103ng b\u00e1nh xe.<\/li>\n<li>M\u1ed9t chi\u1ebfc r\u0103ng b\u1ecb n\u1ee9t tr\u00ean b\u00e1nh r\u0103ng \u0111\u00f3 t\u1ea1o ra m\u1ed9t t\u00e1c \u0111\u1ed9ng m\u1ed7i v\u00f2ng quay. M\u1ed7i khi chi\u1ebfc r\u0103ng b\u1ecb l\u1ed7i \u0111\u00f3 \u0103n kh\u1edbp, t\u00e1c \u0111\u1ed9ng \u0111\u00f3 \u0111i\u1ec1u ch\u1ebf \u2014 thay \u0111\u1ed5i bi\u00ean \u0111\u1ed9 c\u1ee7a \u2014 t\u00edn hi\u1ec7u GMF.<\/li>\n<li>The <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/running-speed\/\">t\u1ed1c \u0111\u1ed9 quay<\/a> c\u1ee7a b\u00e1nh r\u0103ng \u0111\u00f3 do \u0111\u00f3 l\u00e0 t\u1ea7n s\u1ed1 \u0111i\u1ec1u ch\u1ebf.<\/li>\n<\/ul>\n<p>K\u1ebft qu\u1ea3 trong ph\u1ed5 FFT l\u00e0 m\u1ed9t \u0111\u1ec9nh l\u1edbn \u1edf t\u1ea7n s\u1ed1 GMF (t\u1ea7n s\u1ed1 mang) \u0111\u01b0\u1ee3c bao quanh b\u1edfi c\u00e1c \u0111\u1ec9nh sideband nh\u1ecf h\u01a1n c\u00e1ch nhau b\u1eb1ng t\u1ed1c \u0111\u1ed9 quay c\u1ee7a b\u00e1nh r\u0103ng. M\u00f4 h\u00ecnh n\u00e0y ch\u1ee9ng minh kh\u00f4ng ch\u1ec9 r\u1eb1ng l\u1ed7i t\u1ed3n t\u1ea1i m\u00e0 c\u00f2n n\u00f3 \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u00ean b\u00e1nh r\u0103ng c\u1ee5 th\u1ec3 \u0111\u00f3. M\u1ed1i quan h\u1ec7 \u0111\u01b0\u1ee3c ghi l\u1ea1i b\u1eb1ng m\u1ed9t c\u00f4ng th\u1ee9c \u0111\u01a1n gi\u1ea3n:<\/p>\n<blockquote><p><strong>T\u1ea7n s\u1ed1 d\u1ea3i b\u00ean = T\u1ea7n s\u1ed1 s\u00f3ng mang \u00b1 (n \u00d7 T\u1ea7n s\u1ed1 \u0111i\u1ec1u ch\u1ebf)<\/strong>, trong \u0111\u00f3 n = 1, 2, 3 \u2026<\/p><\/blockquote>\n<p>H\u1ecd c\u00e1c \u0111\u1ec9nh ph\u00eda tr\u00ean v\u00e0 d\u01b0\u1edbi t\u1ea7n s\u1ed1 mang do \u0111\u00f3 t\u1ea1o th\u00e0nh m\u1ed9t peine c\u00e1ch \u0111\u1ec1u, v\u00e0 vi\u1ec7c \u0111\u1ebfm kho\u1ea3ng c\u00e1ch t\u00ednh b\u1eb1ng hertz \u2014 sau \u0111\u00f3 chuy\u1ec3n \u0111\u1ed5i n\u00f3 sang rpm \u2014 cho ph\u00e9p nh\u00e0 ph\u00e2n t\u00edch bi\u1ebft ch\u00ednh x\u00e1c piston n\u00e0o \u0111ang ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng b\u00ecnh th\u01b0\u1eddng.<\/p>\n<h2>3. C\u00e1c \u1ee8ng D\u1ee5ng Ch\u00ednh trong Ch\u1ea9n \u0110o\u00e1n M\u00e1y M\u00f3c<\/h2>\n<h3>Ch\u1ea9n \u0111o\u00e1n H\u1ed9p s\u1ed1<\/h3>\n<p>\u0110\u00e2y l\u00e0 \u1ee9ng d\u1ee5ng ch\u00ednh c\u1ee7a ph\u00e2n t\u00edch d\u1ea3i t\u1ea7n b\u00ean.<\/p>\n<ul>\n<li><strong>D\u1ea3i b\u00ean xung quanh GMF:<\/strong> n\u1ebfu c\u00e1c sideband c\u00e1ch nhau t\u1ea1i t\u1ed1c \u0111\u1ed9 ch\u1ea1y c\u1ee7a m\u1ed9t b\u00e1nh r\u0103ng xu\u1ea5t hi\u1ec7n xung quanh GMF c\u1ee7a n\u00f3, ch\u00fang ch\u1ec9 ra m\u1ed9t l\u1ed7i tr\u00ean b\u00e1nh r\u0103ng \u0111\u00f3 \u2014 m\u1ed9t chi\u1ebfc r\u0103ng b\u1ecb n\u1ee9t, m\u1ed9t chi\u1ebfc r\u0103ng b\u1ecb m\u00f2n, ho\u1eb7c <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/eccentricity\/\">s\u1ef1 l\u1eadp d\u1ecb<\/a>.<\/li>\n<li><strong>C\u00e1c d\u1ea3i b\u00ean xung quanh s\u00f3ng h\u00e0i c\u1ee7a GMF:<\/strong> c\u00e1c l\u1ed7i nghi\u00eam tr\u1ecdng th\u01b0\u1eddng s\u1ebd t\u1ea1o ra c\u00e1c sideband xung quanh GMF 2\u00d7 v\u00e0 3\u00d7 c\u0169ng v\u1eady, v\u00ec v\u1eady m\u00f4 h\u00ecnh peine l\u1eb7p l\u1ea1i xung quanh m\u1ed7i <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/harmonics\/\">s\u00f3ng h\u00e0i<\/a>.<\/li>\n<li><strong>T\u1ea7n su\u1ea5t r\u0103ng s\u0103n:<\/strong> trong c\u00e1c b\u1ed9 b\u00e1nh r\u0103ng ph\u1ee9c t\u1ea1p, c\u00e1c sideband kh\u00f4ng ph\u1ea3i s\u1ed1 nguy\u00ean c\u1ee5 th\u1ec3 t\u1ea1i <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/hunting-tooth-frequency\/\">t\u1ea7n s\u1ed1 r\u0103ng cu\u1ed9c s\u0103n<\/a> c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c m\u1ed9t l\u1ed7i ch\u1ec9 x\u1ea3y ra khi hai chi\u1ebfc r\u0103ng c\u1ee5 th\u1ec3 tr\u00ean c\u00e1c b\u00e1nh r\u0103ng kh\u00e1c nhau \u0103n kh\u1edbp v\u1edbi nhau.<\/li>\n<\/ul>\n<h3>Ch\u1ea9n \u0111o\u00e1n v\u00f2ng bi l\u0103n<\/h3>\n<p>C\u00e1c sideband c\u0169ng r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 x\u00e1c nh\u1eadn <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/rolling-element-defects\/\">l\u1ed7i v\u00f2ng bi<\/a>, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi\u1ebfm khuy\u1ebft v\u00f2ng trong:<\/p>\n<ul>\n<li>M\u1ed9t khi\u1ebfm khuy\u1ebft tr\u00ean <strong>v\u00f2ng trong<\/strong> quay v\u1edbi piston, v\u00e0 khi n\u00f3 di chuy\u1ec3n v\u00e0o v\u00e0 ra kh\u1ecfi v\u00f9ng ch\u1ecbu t\u1ea3i c\u1ee7a v\u00f2ng bi, bi\u00ean \u0111\u1ed9 c\u1ee7a c\u00e1c t\u00e1c \u0111\u1ed9ng n\u00f3 t\u1ea1o ra t\u0103ng v\u00e0 gi\u1ea3m.<\/li>\n<li>\u0110i\u1ec1u n\u00e0y t\u1ea1o ra \u0111i\u1ec1u ch\u1ebf bi\u00ean \u0111\u1ed9 c\u1ee7a t\u1ea7n s\u1ed1 l\u1ed7i v\u00f2ng trong, <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/bpfi\/\">BPFI<\/a>.<\/li>\n<li>Ph\u1ed5 k\u1ebft qu\u1ea3 cho th\u1ea5y m\u1ed9t \u0111\u1ec9nh t\u1ea1i BPFI v\u1edbi <strong>c\u00e1c sideband c\u00e1ch nhau b\u1eb1ng 1\u00d7 t\u1ed1c \u0111\u1ed9 quay c\u1ee7a piston<\/strong>. Nh\u00ecn th\u1ea5y m\u00f4 h\u00ecnh n\u00e0y l\u00e0 m\u1ed9t ch\u1ec9 b\u00e1o c\u00f3 \u0111\u1ed9 tin c\u1eady r\u1ea5t cao v\u1ec1 m\u1ed9t khi\u1ebfm khuy\u1ebft v\u00f2ng trong \u2014 v\u00e0 \u0111\u00e2y l\u00e0 m\u1ed9t l\u00fd do <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/envelope-analysis\/\">ph\u00e2n t\u00edch \u0111\u01b0\u1eddng bao<\/a> r\u1ea5t hi\u1ec7u qu\u1ea3 trong vi\u1ec7c kh\u1eed \u0111i\u1ec1u ch\u1ebf nh\u1eefng t\u00edn hi\u1ec7u n\u00e0y.<\/li>\n<\/ul>\n<h3>Ch\u1ea9n \u0111o\u00e1n \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n<\/h3>\n<p>C\u00e1c v\u1ea5n \u0111\u1ec1 v\u1edbi thanh rotor trong \u0111\u1ed9ng c\u01a1 c\u1ea3m \u1ee9ng AC c\u00f3 th\u1ec3 khi\u1ebfn c\u00e1c d\u1ea3i bi\u00ean xu\u1ea5t hi\u1ec7n xung quanh \u0111\u1ec9nh t\u1ed1c \u0111\u1ed9 ch\u1ea1y 1x. C\u00e1c d\u1ea3i bi\u00ean n\u00e0y c\u00e1ch nhau t\u1ea1i <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/pole-pass-frequency\/\">t\u1ea7n s\u1ed1 v\u01b0\u1ee3t c\u1ef1c<\/a> \u2014 c\u00e1i <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/slip-frequency\/\">t\u1ea7n s\u1ed1 tr\u01b0\u1ee3t<\/a> c\u1ee7a \u0111\u1ed9ng c\u01a1 nh\u00e2n v\u1edbi s\u1ed1 c\u1ef1c c\u1ee7a \u0111\u1ed9ng c\u01a1 \u2014 v\u00e0 l\u00e0 m\u1ed9t d\u1ea5u hi\u1ec7u c\u1ed5 \u0111i\u1ec3n c\u1ee7a <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/broken-rotor-bars\/\">thanh r\u00f4to b\u1ecb h\u1ecfng<\/a>.<\/p>\n<h2>4. C\u00e2n nh\u1eafc khi ph\u00e2n t\u00edch<\/h2>\n<p>\u0110\u1ec3 s\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3 ph\u00e2n t\u00edch d\u1ea3i t\u1ea7n, d\u1eef li\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng cao l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft:<\/p>\n<ul>\n<li><strong>\u0110\u1ed9 ph\u00e2n gi\u1ea3i cao:<\/strong> m\u1ed9t FFT \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao (v\u00ed d\u1ee5 3200 ho\u1eb7c 6400 d\u00f2ng) l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 nh\u00ecn r\u00f5 c\u00e1c \u0111\u1ec9nh sideband v\u00e0 \u0111o ch\u00ednh x\u00e1c kho\u1ea3ng c\u00e1ch c\u1ee7a ch\u00fang. V\u1edbi \u0111\u1ed9 ph\u00e2n gi\u1ea3i th\u1ea5p, c\u00e1c sideband \u0111\u01b0\u1ee3c \"t\u1ea9m nhu\u1ed9m\" c\u00f9ng v\u1edbi \u0111\u1ec9nh t\u1ea7n s\u1ed1 mang. M\u1ed1i quan h\u1ec7 gi\u1eefa s\u1ed1 d\u00f2ng, span v\u00e0 \u0111\u1ed9 ph\u00e2n gi\u1ea3i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ki\u1ec3m tra b\u1eb1ng m\u1ed9t <a href=\"https:\/\/vibromera.eu\/vi\/calculators\/fft-resolution-calculator\/\">C\u00f4ng c\u1ee5 t\u00ednh \u0111\u1ed9 ph\u00e2n gi\u1ea3i FFT<\/a>.<\/li>\n<li><strong>Xu h\u01b0\u1edbng:<\/strong> s\u1ed1 l\u01b0\u1ee3ng v\u00e0 bi\u00ean \u0111\u1ed9 c\u1ee7a c\u00e1c d\u1ea3i ph\u1ee5 l\u00e0 m\u1ed9t ch\u1ec9 b\u00e1o t\u1ed1t v\u1ec1 m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng c\u1ee7a h\u1ecfng h\u00f3c. Khi h\u1ecfng h\u00f3c tr\u1edf n\u00ean t\u1ed3i t\u1ec7 h\u01a1n, s\u1ebd xu\u1ea5t hi\u1ec7n nhi\u1ec1u d\u1ea3i ph\u1ee5 h\u01a1n v\u00e0 bi\u00ean \u0111\u1ed9 c\u1ee7a ch\u00fang t\u0103ng l\u00ean, v\u00ec v\u1eady vi\u1ec7c ghi l\u1ea1i ch\u00fang theo th\u1eddi gian qua <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/trend-analysis\/\">ph\u00e2n t\u00edch xu h\u01b0\u1edbng<\/a> theo d\u00f5i s\u1ef1 xu\u1ed1ng c\u1ea5p.<\/li>\n<li><strong>Ph\u00f3ng to FFT:<\/strong> c\u00e1i <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/zoom-fft\/\">Ph\u00f3ng to FFT<\/a> ch\u1ee9c n\u0103ng tr\u00ean m\u1ed9t b\u1ed9 ph\u00e2n t\u00edch cho ph\u00e9p ng\u01b0\u1eddi ph\u00e2n t\u00edch ph\u00f3ng to m\u1ed9t d\u1ea3i t\u1ea7n s\u1ed1 h\u1eb9p \u1edf \u0111\u1ed9 ph\u00e2n gi\u1ea3i r\u1ea5t cao \u0111\u1ec3 x\u00e1c nh\u1eadn s\u1ef1 hi\u1ec7n di\u1ec7n v\u00e0 kho\u1ea3ng c\u00e1ch c\u1ee7a c\u00e1c d\u1ea3i ph\u1ee5.<\/li>\n<\/ul>\n<h2>5. \u0110\u1ecdc Kho\u1ea3ng C\u00e1ch: T\u1eeb M\u1eabu H\u00ecnh \u0110\u1ebfn Ch\u1ea9n \u0110o\u00e1n<\/h2>\n<p>S\u1ee9c m\u1ea1nh ch\u1ea9n \u0111o\u00e1n c\u1ee7a m\u1ed9t h\u1ecd d\u1ea3i ph\u1ee5 n\u1eb1m \u1edf s\u1ed1 h\u1ecdc c\u1ee7a n\u00f3. V\u00ec kho\u1ea3ng c\u00e1ch b\u1eb1ng t\u1ea7n s\u1ed1 \u0111i\u1ec1u ch\u1ebf, ng\u01b0\u1eddi ph\u00e2n t\u00edch c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c ng\u01b0\u1ee3c l\u1ea1i t\u1eeb l\u01b0\u1ee3c d\u1eadp \u0111\u1ec3 t\u00ecm nguy\u00ean nh\u00e2n: kho\u1ea3ng c\u00e1ch t\u1ea1i t\u1ed1c \u0111\u1ed9 puly 1\u00d7 li\u00ean quan \u0111\u1ebfn puly \u0111\u00f3; kho\u1ea3ng c\u00e1ch t\u1ea1i t\u1ea7n s\u1ed1 l\u1ed1i \u0111i c\u1ef1c li\u00ean quan \u0111\u1ebfn \u0111i\u1ec1u ki\u1ec7n \u0111i\u1ec7n c\u1ee7a \u0111\u1ed9ng c\u01a1; kho\u1ea3ng c\u00e1ch kh\u00f4ng nguy\u00ean li\u00ean quan \u0111\u1ebfn c\u1eb7p r\u0103ng c\u1ee5 th\u1ec3. \u0110o t\u1ea7n s\u1ed1 gh\u00e9p m\u1eb7t truy\u1ec1n t\u1ea3i v\u00e0 c\u1ea5u tr\u00fac d\u1ea3i ph\u1ee5 d\u1ef1 ki\u1ebfn c\u1ee7a n\u00f3 tr\u01b0\u1edbc \u2013 v\u00ed d\u1ee5 v\u1edbi m\u1ed9t chuy\u00ean d\u1ee5ng <a href=\"https:\/\/vibromera.eu\/vi\/calculators\/gear-mesh-frequency\/\">C\u00f4ng c\u1ee5 t\u00ednh t\u1ea7n s\u1ed1 \u0103n kh\u1edbp b\u00e1nh r\u0103ng<\/a> \u2014 cho ph\u00e9p ng\u01b0\u1eddi ph\u00e2n t\u00edch d\u1ef1 \u0111o\u00e1n ch\u00ednh x\u00e1c n\u01a1i t\u00ecm ki\u1ebfm tr\u01b0\u1edbc khi m\u1edf ph\u1ed5.<\/p>\n<p>Trong th\u1ef1c ti\u1ec5n, nh\u1eefng m\u1eabu h\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c b\u1eaft gi\u1eef b\u1eb1ng m\u1ed9t b\u1ed9 ph\u00e2n t\u00edch ph\u1ed5 c\u1ea7m tay \u0111\u01b0\u1ee3c mang t\u1eeb m\u00e1y n\u00e0y sang m\u00e1y kh\u00e1c. M\u1ed9t d\u1ee5ng c\u1ee5 nh\u01b0 <a href=\"https:\/\/vibromera.eu\/vi\/san-pham\/balanset-1\/\">Balanset-1A<\/a> \u0111o ph\u1ed5 rung \u0111\u1ed9ng tr\u00ean m\u1ed9t m\u00e1y \u0111ang ch\u1ea1y \u1edf \u0111\u1ed9 ph\u00e2n gi\u1ea3i \u0111\u1ee7 cao \u0111\u1ec3 ph\u00e2n gi\u1ea3i l\u01b0\u1ee3c d\u1eadp d\u1ea3i ph\u1ee5 xung quanh t\u1ea7n s\u1ed1 h\u1ecfng h\u00f3c m\u1eb7t truy\u1ec1n t\u1ea3i ho\u1eb7c v\u00f2ng bi, \u0111\u1ec3 m\u1ed9t k\u1ef9 s\u01b0 c\u00f3 th\u1ec3 x\u00e1c nh\u1eadn ch\u1ea9n \u0111o\u00e1n t\u1ea1i ch\u1ed7; v\u00e0 khi kh\u1ea3o s\u00e1t t\u01b0\u01a1ng t\u1ef1 cho th\u1ea5y r\u1eb1ng v\u1ea5n \u0111\u1ec1 ch\u1ee7 y\u1ebfu l\u00e0 \u0111\u01a1n gi\u1ea3n <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/unbalance\/\">m\u1ea5t c\u00e2n b\u1eb1ng<\/a> thay v\u00ec h\u1ecfng h\u00f3c r\u0103ng ho\u1eb7c \u0111\u01b0\u1eddng ch\u1ea1y, d\u1ee5ng c\u1ee5 chuy\u1ec3n tr\u1ef1c ti\u1ebfp sang <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/field-balancing\/\">c\u00e2n b\u1eb1ng t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng<\/a> \u0111\u1ec3 kh\u1eafc ph\u1ee5c.<\/p>\n<p>Khi m\u1ed9t ng\u01b0\u1eddi ph\u00e2n t\u00edch t\u00ecm th\u1ea5y m\u1ed9t m\u1eabu h\u00ecnh d\u1ea3i ph\u1ee5 r\u00f5 r\u00e0ng, \u0111\u1ed1i x\u1ee9ng \u1edf kho\u1ea3ng c\u00e1ch d\u1ef1 ki\u1ebfn, m\u1ee9c \u0111\u1ed9 tin c\u1eady c\u1ee7a <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/diagnosis\/\">ch\u1ea9n \u0111o\u00e1n<\/a> t\u0103ng t\u1eeb &#8220;c\u00f3 th\u1ec3 c\u00f3&#8221; l\u00ean &#8220;r\u1ea5t c\u00f3 kh\u1ea3 n\u0103ng&#8221; \u2014 \u0111\u00f3 ch\u00ednh l\u00e0 l\u00fd do t\u1ea1i sao c\u00e1c d\u1ea3i ph\u1ee5 \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t trong nh\u1eefng d\u1ea5u v\u00e2n tay \u0111\u00e1ng tin c\u1eady nh\u1ea5t trong th\u1ef1c ti\u1ec5n.<\/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>H\u01b0\u1edbng d\u1eabn v\u1ec1 d\u1ea3i bi\u00ean trong ph\u00e2n t\u00edch rung \u0111\u1ed9ng. T\u00ecm hi\u1ec3u c\u00e1ch t\u1ea1o ra c\u00e1c t\u1ea7n s\u1ed1 \u0111i\u1ec1u ch\u1ebf n\u00e0y v\u00e0 c\u00e1ch ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ea9n \u0111o\u00e1n l\u1ed7i b\u00e1nh r\u0103ng v\u00e0 \u1ed5 tr\u1ee5c v\u1edbi \u0111\u1ed9 tin c\u1eady cao.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-239","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/glossary\/239","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\/239\/revisions"}],"predecessor-version":[{"id":101312,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/glossary\/239\/revisions\/101312"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/media?parent=239"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/categories?post=239"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/tags?post=239"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}