{"id":44,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/band-pass-filter\/"},"modified":"2026-05-23T22:47:02","modified_gmt":"2026-05-23T22:47:02","slug":"band-pass-filter","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/tl\/glossary\/band-pass-filter\/","title":{"rendered":"Ano ang Band-Pass Filter? Pagpili ng Frequency Band"},"content":{"rendered":"<h1>Pag-unawa sa Band-Pass Filters<\/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\/tl\/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\/tl\/product\/balanset-1\/\" title=\"Portable balancer at Vibration analyzer 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=\"Balanset-1A full kit portable na balancer at vibration analyzer\" 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\/tl\/product-category\/devices\/\" rel=\"tag\">Devices<\/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\/tl\/product\/balanset-1\/\" title=\"Portable balancer at Vibration analyzer Balanset-1A\">Portable na balancer &#038; vibration analyzer na 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\">&euro;<\/span>1,975.00<\/span> + VAT (kung naaangkop)<\/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=\"\/tl\/wp-json\/wp\/v2\/glossary\/44?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=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" 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=\"\/tl\/wp-json\/wp\/v2\/glossary\/44?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=\"Add to cart: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/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\/tl\/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\/tl\/product\/vibration-sensor\/\" title=\"Sensor ng vibraci\u00f3n\">\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=\"Balanset-1A vibration sensor close-up\" 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\/tl\/product-category\/parts\/\" rel=\"tag\">Parts<\/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\/tl\/product\/vibration-sensor\/\" title=\"Sensor ng vibraci\u00f3n\">Sensor ng vibraci\u00f3n<\/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\">&euro;<\/span>90.00<\/span> + VAT (kung naaangkop)<\/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=\"\/tl\/wp-json\/wp\/v2\/glossary\/44?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=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" 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=\"\/tl\/wp-json\/wp\/v2\/glossary\/44?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=\"Add to cart: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/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\/tl\/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\/tl\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optical Sensor (Laser Tachometer)\">\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=\"Optical Sensor (Laser Tachometer)\" 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\/tl\/product-category\/parts\/\" rel=\"tag\">Parts<\/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\/tl\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optical Sensor (Laser Tachometer)\">Optical Sensor (Laser Tachometer)<\/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\">&euro;<\/span>124.00<\/span> + VAT (kung naaangkop)<\/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=\"\/tl\/wp-json\/wp\/v2\/glossary\/44?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=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" 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=\"\/tl\/wp-json\/wp\/v2\/glossary\/44?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=\"Add to cart: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/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\/tl\/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\/tl\/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=\"Vibromera rotor balancing kit: carrying case, multi-channel signal conditioner, handheld analyzer, magnetic base, mga vibration sensor, at mga coiled cable.\" 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\/tl\/product-category\/devices\/\" rel=\"tag\">Devices<\/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\/tl\/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\">&euro;<\/span>6,803.00<\/span> + VAT (kung naaangkop)<\/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=\"\/tl\/wp-json\/wp\/v2\/glossary\/44?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=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" 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=\"\/tl\/wp-json\/wp\/v2\/glossary\/44?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=\"Add to cart: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/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\/tl\/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\/tl\/product\/magnet-stand\/\" title=\"Magnetic Stand 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=\"Magnet base.\" 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\/tl\/product-category\/parts\/\" 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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>A <strong>band-pass filter<\/strong> (BPF) ay isang frequency-selective na elemento ng signal processing na nagpapahintulot sa <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/vibration\/\">vibration<\/a> mga bahagi sa loob ng isang napiling frequency band na makapasa habang pinipigilan ang lahat ng nasa ibaba at nasa itaas ng band na iyon. Ito ay, sa katotohanan, ang kombinasyon ng isang <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/high-pass-filter\/\">high-pass filter<\/a> (na humahadlang sa mababang frequency) at isang <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/low-pass-filter\/\">low-pass filter<\/a> (na humahadlang sa mataas na frequency), na bumubuo ng isang &#8220;window&#8221; na nagpapapasok lamang ng isang napiling gitnang hanay. Bawat band-pass filter ay inilarawan ng tatlong numero: ang sentro ng frequency nito, ang bandwidth nito, at ang order o katibayan nito. Sa gawaing vibration, ang BPF ay kailangang-kailangan para sa <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/envelope-analysis\/\">envelope analysis<\/a>, para sa nakatutok na diagnostics sa isang partikular na hanay, at para sa pagpapataas ng mahihinang signal mula sa ingay sa pamamagitan ng pagtanggi sa lahat ng nasa labas ng band ng interes. Ito ay isa sa mga pinaka-ginagamit na kasangkapan sa mas malawak na toolbox ng <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/signal-filtering\/\">pagsusulog ng signal<\/a>.<\/p>\n<h2>1. Mga Parameter ng Filter<\/h2>\n<h3>Sentro ng Frequency (f\u2080)<\/h3>\n<ul>\n<li>Ang gitna ng passband at ang punto ng pinakamataas na tugon ng filter.<\/li>\n<li>Pinili upang tumugma sa nilalaman ng frequency na pinag-iinteresahan \u2014 karaniwang isang kilalang resonance o fault frequency.<\/li>\n<\/ul>\n<h3>Bandwidth (BW)<\/h3>\n<ul>\n<li><strong>Definition:<\/strong> ang frequency span sa pagitan ng mga \u22123 dB na punto, f<sub>high<\/sub> \u2212 f<sub>low<\/sub>.<\/li>\n<li><strong>Makitid na band:<\/strong> BW &lt; 10% ng f\u2080 \u2014 lubos na selective.<\/li>\n<li><strong>Wide band:<\/strong> BW &gt; 50% ng f\u2080 \u2014 hindi gaanong selective.<\/li>\n<li><strong>Q factor:<\/strong> Q = f\u2080 \/ BW; a higher Q means a narrower, more selective filter.<\/li>\n<\/ul>\n<h3>Mga Katangian ng Filter<\/h3>\n<ul>\n<li><strong>Mas mababang cutoff (f<sub>low<\/sub>):<\/strong> kung saan ang mas mababang bahagi ay bumaba sa \u22123 dB.<\/li>\n<li><strong>Mas mataas na cutoff (f<sub>high<\/sub>):<\/strong> kung saan ang mas mataas na bahagi ay bumaba sa \u22123 dB.<\/li>\n<li><strong>Shape factor:<\/strong> ang ratio ng stopband sa passband na lapad \u2014 isang sukatan ng kung gaano katalas ang pagputol ng filter.<\/li>\n<\/ul>\n<h2>2. Mga Aplikasyon sa Vibration Analysis<\/h2>\n<h3>2.1 Envelope Analysis \u2014 ang Pangunahing Paggamit<\/h3>\n<p>Ang band-pass filter ay ang kritikal na unang hakbang sa pag-detect ng mga depekto ng rolling-element bearing:<\/p>\n<ul>\n<li><strong>Pagpili ng band:<\/strong> karaniwang 500 Hz\u201310 kHz o 1 kHz\u201320 kHz.<\/li>\n<li><strong>Purpose:<\/strong> ihiwalay ang mataas na frequency na istrukturang resonance na pinupukaw ng mga bearing impact.<\/li>\n<li><strong>Process:<\/strong> BPF \u2192 envelope detection (<a href=\"https:\/\/vibromera.eu\/tl\/glossary\/demodulation\/\">demodulation<\/a>) \u2192 <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/fft\/\">FFT<\/a> ng envelope.<\/li>\n<li><strong>Result:<\/strong> the <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/bearing-fault-frequencies\/\">bearing fault frequencies<\/a> malinaw na namumukod-tangi sa resultang <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/envelope-spectrum\/\">envelope spectrum<\/a>.<\/li>\n<\/ul>\n<h3>2.2 Resonance Band Analysis<\/h3>\n<p>Pag-filter nang malapit sa isang structural o bearing <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/resonance\/\">resonance<\/a> inihihiwalay ang enerhiya sa mode na iyon mula sa lahat ng iba pang frequency, na nagpapahintulot sa inyong suriin ang excitation at tugon sa isang partikular na resonance \u2014 isang makapangyarihang tulong sa pag-troubleshoot ng resonance.<\/p>\n<h3>2.3 Frequency-Range Isolation<\/h3>\n<p>Ang BPF ay maaaring magtuon sa isang napiling diagnostic na hanay \u2014 halimbawa, 10\u2013100 Hz para sa mababang frequency na gawain \u2014 na tinatanggal ang mababang frequency na drift at mataas na frequency na ingay upang linawin ang mga bahagi na pinag-iinteresahan ninyo.<\/p>\n<h3>2.4 Gear Mesh Isolation<\/h3>\n<p>Pag-sentro ng band sa <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/gear-mesh-frequency\/\">frequency ng gear mesh<\/a> pinapasa ang peak na iyon at ang mga sideband nito habang tinatanggihan ang iba pang gear stage at bearing frequency, na nagbibigay-daan sa nakatutok na gear analysis. Kung saan ang layunin ay sundan ang nagbabagong bilis kaysa sa isang nakapirming band, ang isang <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/tracking-filter\/\">tracking filter<\/a> gumaganap ng parehong paghihiwalay na nakareperensya sa shaft order.<\/p>\n<h2>3. Band-Pass Filter Design<\/h2>\n<h3>Cascaded Low-Pass at High-Pass<\/h3>\n<p>Ang pinaka-karaniwang pagpapatupad ay simpleng iniuugnay ang dalawang mas simpleng filter:<\/p>\n<ul>\n<li>Ang high-pass section ay pumigil sa lahat sa ibaba ng f<sub>low<\/sub>.<\/li>\n<li>Ang low-pass section ay pumigil sa lahat sa itaas ng f<sub>high<\/sub>.<\/li>\n<li>Sa serye, bumubuo sila ng band-pass, at ang bawat seksyon ay nag-aambag sa kabuuang selectivity.<\/li>\n<\/ul>\n<h3>Direct Band-Pass Design<\/h3>\n<p>Bilang alternatibo, ang filter ay ino-optimize bilang isang solong yugto sa halip na isang cascade. Mas kumplikado itong i-disenyo ngunit maaaring makamit ang mas magagandang katangian, at nakalaan ito para sa mga espesyalisadong aplikasyon. Ang isang malapit na kamag-anak ay ang <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/notch-filter\/\">notch filter<\/a>, na gumaganap ng kabaligtarang trabaho \u2014 tinatanggihan ang isang makitid na banda habang pinapasa ang lahat ng iba pa.<\/p>\n<h2>4. Praktikal na Mga Pagsasaalang-alang<\/h2>\n<h3>Kompromiso sa Bandwidth<\/h3>\n<p><strong>Makitid na bandwidth<\/strong> nagbibigay ng mas mahusay na selectivity at mas malakas na pagtanggi sa mga kalapit na frequency, ngunit maaari itong mapalampas ang pagbabago ng frequency at nangangailangan ng tumpak na pag-tune \u2014 pinakamainam kapag ang frequency ng interes ay kilala at matatag. <strong>Wide bandwidth<\/strong> kumukuha ng pagbabago ng frequency at mas hindi maselang i-tune, sa gastos ng mas mahinang pagtanggi sa mga kalapit na hindi gustong nilalaman \u2014 pinakamainam kapag gumagala ang frequency o mahalaga ang isang buong hanay.<\/p>\n<h3>Pagpili ng Band para sa Envelope Analysis<\/h3>\n<ul>\n<li><strong>Typical bands:<\/strong> 500\u20132,000 Hz, 1,000\u20135,000 Hz, at 5,000\u201320,000 Hz.<\/li>\n<li><strong>Selection:<\/strong> piliin ang band na may pinakamalakas na excitation ng bearing-resonance.<\/li>\n<li><strong>Verify:<\/strong> suriin ang raw acceleration <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/spectrum\/\">spectrum<\/a> upang mahanap muna ang resonance na iyon.<\/li>\n<li><strong>Optimise:<\/strong> i-adjust ang band upang mapakinabangan ang signal ng depekto ng bearing.<\/li>\n<\/ul>\n<h2>5. Mga Epekto ng Filter sa Signal<\/h2>\n<h3>Mga Epekto ng Time-Waveform<\/h3>\n<p>Isang band-pass-filtered <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/time-waveform\/\">time waveform<\/a> nagpapakita lamang ng nilalaman ng passband. Sa isang makitid na band, lilitaw ito bilang isang modulated carrier; ang mga mababang-frequency na pagbabago at mataas na-frequency na ingay ay wala na, na maaaring lubos na gawing simple ang interpretasyon.<\/p>\n<h3>Mga Epekto ng Spectrum<\/h3>\n<p>Sa spectrum, ang mga amplitude ng passband ay pinapanatili habang ang mga amplitude ng stopband ay pinuputol ng tipikal na 40\u201380 dB. Ang resulta ay isang mas malinis na display na nakatuon sa band ng interes, na may mas mababang noise floor saanman ang ingay ay nasa labas ng passband.<\/p>\n<h2>6. Digital kumpara sa Analog, at mga Band ayon sa Hanay ng Frequency<\/h2>\n<h3>Digital vs. Analog Filters<\/h3>\n<p><strong>Analog<\/strong> ang mga band-pass filter ay ipinapatupad sa hardware sa signal path, gumagana sa real time, may mga naayos na katangian kapag naitayo na, at ginagamit sa <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/aliasing\/\">anti-aliasing<\/a> at signal conditioning. <strong>Digital<\/strong> ang mga filter ay nagpoproseso ng signal sa software pagkatapos ng digitization, nag-aalok ng mga nare-regulate na parameter, at maaaring ilapat o alisin kahit pagkatapos makuha ang data \u2014 kaya naman nagbibigay ang mga modernong analyzer ng malawak na mga opsyon ng digital BPF.<\/p>\n<h3>Mga Karaniwang Banda ayon sa Range<\/h3>\n<ul>\n<li><strong>Mababang-frequency (10\u2013200 Hz):<\/strong> pagsusuri ng unbalance at misalignment, mababang-bilis na makinarya, at vibration ng pundasyon o istruktura.<\/li>\n<li><strong>Katamtamang-frequency (200\u20132,000 Hz):<\/strong> mga frequency ng gear mesh, mga frequency ng pagdaan ng blade at vane, at ang mas mababang mga frequency ng depekto ng bearing.<\/li>\n<li><strong>Mataas na-frequency (2\u201340 kHz):<\/strong> envelope analysis ng depekto ng bearing, mataas na-frequency na mga epekto, at excitation ng bearing-resonance.<\/li>\n<\/ul>\n<h2>7. Band-Pass Filtering sa Field<\/h2>\n<p>Sa pagsasagawa, ang band-pass filter ay bihirang gamitin nang mag-isa \u2014 ito ay isang yugto sa loob ng isang measurement chain na nag-sa-sample, nagwa-window, at nag-tra-transform din ng signal, kaya ang napiling band ay dapat nasa loob ng sampling bandwidth ng instrumento. Isang portable na dalawang-channel na analyzer tulad ng <a href=\"https:\/\/vibromera.eu\/tl\/product\/balanset-1\/\">Balanset-1A<\/a> sumusukat ng vibration sa halos 5 Hz hanggang 1 kHz at nire-resolve ang 1\u00d7 <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/phase\/\">amplitude at phase<\/a> na kailangan para sa on-site na balancing; ang band-pass at mga teknik ng envelope ay nagdadagdag sa workflow na iyon kapag kailangang kumpirmahin ng isang inhinyero kung ang isang mataas na-frequency na depekto ng bearing, sa halip na simpleng unbalance, ang tunay na pinagmulan ng problema. Kapag nagse-set up ng ganitong pagsusuri, ang <a href=\"https:\/\/vibromera.eu\/tl\/calculators\/fft-resolution-calculator\/\">FFT Resolution Calculator<\/a> tumutulong na itugma ang bilang ng linya at bandwidth sa band na nais suriin, upang ang mga fault line at sideband na magkalap\u00edt ay hindi mapagsamasama. Ang pag-master ng pagpili ng band-pass \u2014 higit sa lahat para sa envelope analysis at paghihiwalay ng frequency range \u2014 ay mahalaga upang makakuha ng malinaw na impormasyon ng diagnostic mula sa isang kumplikadong vibration signature.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/tl\/glossary\/\">\u2190 Bumalik sa Pangunahing Index<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Matuto tungkol sa mga band-pass filter sa vibration analysis, mga kasangkapan sa signal processing na nagpapasa ng mga frequency sa loob ng isang napiling banda habang hinaharangan ang lahat ng iba pa, mahalaga para sa envelope analysis.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-44","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/glossary\/44","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/glossary\/44\/revisions"}],"predecessor-version":[{"id":101372,"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/glossary\/44\/revisions\/101372"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/media?parent=44"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/categories?post=44"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/tags?post=44"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}