{"id":137,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/high-pass-filter\/"},"modified":"2026-07-03T10:04:05","modified_gmt":"2026-07-03T10:04:05","slug":"high-pass-filter","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/cs\/glossary\/high-pass-filter\/","title":{"rendered":"Co je to horn\u00ed propust? N\u00e1stroj pro v\u00fdb\u011br frekvence"},"content":{"rendered":"<h1>Pochopen\u00ed hornopropustn\u00fdch filtr\u016f<\/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\/cs\/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\/cs\/product\/balanset-1\/\" title=\"P\u0159enosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibrac\u00ed 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=\"Kompletn\u00ed sada p\u0159enosn\u00e9ho vyva\u017eova\u010de a analyz\u00e1toru vibrac\u00ed 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\/cs\/product-category\/devices\/\" rel=\"tag\">Za\u0159\u00edzen\u00ed<\/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\/cs\/product\/balanset-1\/\" title=\"P\u0159enosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibrac\u00ed Balanset-1A\">P\u0159enosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibrac\u00ed 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> + DPH (pokud se uplat\u0148uje)<\/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=\"\/cs\/wp-json\/wp\/v2\/glossary\/137?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=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" 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=\"\/cs\/wp-json\/wp\/v2\/glossary\/137?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=\"P\u0159idat do ko\u0161\u00edku: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/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\/cs\/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\/cs\/product\/vibration-sensor\/\" title=\"Sn\u00edma\u010d vibrac\u00ed\">\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=\"Sn\u00edma\u010d vibrac\u00ed Balanset-1A zbl\u00edzka\" 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\/cs\/product-category\/parts\/\" rel=\"tag\">D\u00edly<\/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\/cs\/product\/vibration-sensor\/\" title=\"Sn\u00edma\u010d vibrac\u00ed\">Sn\u00edma\u010d vibrac\u00ed<\/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> + DPH (pokud se uplat\u0148uje)<\/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=\"\/cs\/wp-json\/wp\/v2\/glossary\/137?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=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" 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=\"\/cs\/wp-json\/wp\/v2\/glossary\/137?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=\"P\u0159idat do ko\u0161\u00edku: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/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\/cs\/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\/cs\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optick\u00fd senzor (laserov\u00fd ot\u00e1\u010dkom\u011br)\">\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=\"Optick\u00fd senzor (laserov\u00fd ot\u00e1\u010dkom\u011br)\" 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\/cs\/product-category\/parts\/\" rel=\"tag\">D\u00edly<\/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\/cs\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optick\u00fd senzor (laserov\u00fd ot\u00e1\u010dkom\u011br)\">Optick\u00fd senzor (laserov\u00fd ot\u00e1\u010dkom\u011br)<\/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> + DPH (pokud se uplat\u0148uje)<\/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=\"\/cs\/wp-json\/wp\/v2\/glossary\/137?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=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" 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=\"\/cs\/wp-json\/wp\/v2\/glossary\/137?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=\"P\u0159idat do ko\u0161\u00edku: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/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\/cs\/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\/cs\/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=\"Sada pro vyva\u017eov\u00e1n\u00ed rotor\u016f Vibromera: p\u0159epravn\u00ed kuf\u0159\u00edk, v\u00edcekan\u00e1lov\u00fd zesilova\u010d sign\u00e1lu, ru\u010dn\u00ed analyz\u00e1tor, magnetick\u00e1 z\u00e1kladna, vibra\u010dn\u00ed senzory a spir\u00e1lov\u00e9 kabely.\" 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\/cs\/product-category\/devices\/\" rel=\"tag\">Za\u0159\u00edzen\u00ed<\/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\/cs\/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> + DPH (pokud se uplat\u0148uje)<\/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=\"\/cs\/wp-json\/wp\/v2\/glossary\/137?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=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" 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=\"\/cs\/wp-json\/wp\/v2\/glossary\/137?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=\"P\u0159idat do ko\u0161\u00edku: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/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\/cs\/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\/cs\/product\/magnet-stand\/\" title=\"Magnetick\u00fd stojan 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=\"Magnetick\u00e1 z\u00e1kladna.\" 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\/cs\/product-category\/parts\/\" rel=\"tag\">D\u00edly<\/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\/cs\/product\/magnet-stand\/\" title=\"Magnetick\u00fd stojan Insize-60 kgf\">Magnetick\u00fd stojan 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> + DPH (pokud se uplat\u0148uje)<\/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=\"\/cs\/wp-json\/wp\/v2\/glossary\/137?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=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" 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=\"\/cs\/wp-json\/wp\/v2\/glossary\/137?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=\"P\u0159idat do ko\u0161\u00edku: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/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\/cs\/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\/cs\/product\/reflective-tape\/\" title=\"Reflexn\u00ed p\u00e1ska\">\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=\"Reflexn\u00ed p\u00e1ska\" 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\/cs\/product-category\/parts\/\" rel=\"tag\">D\u00edly<\/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\/cs\/product\/reflective-tape\/\" title=\"Reflexn\u00ed p\u00e1ska\">Reflexn\u00ed p\u00e1ska<\/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> + DPH (pokud se uplat\u0148uje)<\/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=\"\/cs\/wp-json\/wp\/v2\/glossary\/137?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=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" 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=\"\/cs\/wp-json\/wp\/v2\/glossary\/137?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=\"P\u0159idat do ko\u0161\u00edku: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/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\/cs\/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\/cs\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamick\u00fd vyva\u017eova\u010d &quot;Balanset-1A&quot; 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=\"Obsah sady Balanset-1A s jednotkou rozhran\u00ed, senzory, ot\u00e1\u010dkom\u011brem a p\u0159\u00edslu\u0161enstv\u00edm\" 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\/cs\/product-category\/devices\/\" rel=\"tag\">Za\u0159\u00edzen\u00ed<\/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\/cs\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamick\u00fd vyva\u017eova\u010d &quot;Balanset-1A&quot; OEM\">Dynamick\u00fd vyva\u017eova\u010d \"Balanset-1A\" 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> + DPH (pokud se uplat\u0148uje)<\/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=\"\/cs\/wp-json\/wp\/v2\/glossary\/137?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=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" 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=\"\/cs\/wp-json\/wp\/v2\/glossary\/137?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=\"P\u0159idat do ko\u0161\u00edku: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/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>A <strong>horn\u00ed propust<\/strong> (HPF) je frekven\u010dn\u011b selektivn\u00ed prvek pro zpracov\u00e1n\u00ed sign\u00e1lu, kter\u00fd umo\u017e\u0148uje <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/vibration\/\">vibrace<\/a> sign\u00e1lov\u00e9 slo\u017eky nad stanovenou mezn\u00ed frekvenc\u00ed propou\u0161t\u011bt a z\u00e1rove\u0148 tlumit slo\u017eky pod touto mezn\u00ed frekvenc\u00ed. V <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/vibration-analysis\/\">anal\u00fdza vibrac\u00ed<\/a>, filtry horn\u00ed propusti odstra\u0148uj\u00ed n\u00edzkofrekven\u010dn\u00ed vibrace (z <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/unbalance\/\">nevyv\u00e1\u017eenost<\/a> a <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/misalignment\/\">nesouosost<\/a>), aby se analytik mohl soust\u0159edit na obsah s vysokou frekvenc\u00ed (z <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/bearing-defects\/\">vady lo\u017eisek<\/a>, <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/gear-mesh-frequency\/\">z\u00e1b\u011br ozuben\u00ed<\/a>, a elektrick\u00e9 zdroje) a odstra\u0148uj\u00ed DC offsety a n\u00edzkofrekven\u010dn\u00ed drift. Je to zrcadlov\u00fd prot\u011bj\u0161ek <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/low-pass-filter\/\">dolnopropustn\u00fd filtr<\/a>.<\/p>\n<p>Filtry horn\u00ed propusti jsou z\u00e1kladem pro <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/envelope-analysis\/\">obalov\u00e1 anal\u00fdza<\/a> a obecn\u011b <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/signal-filtering\/\">filtrov\u00e1n\u00ed sign\u00e1lu<\/a> (na rozd\u00edl od anti-aliasingu, co\u017e je doln\u00ed propust aplikovan\u00e1 p\u0159ed digitalizac\u00ed), kter\u00fd umo\u017e\u0148uje extrahovat diagnostick\u00e9 informace z vybran\u00e9ho frekven\u010dn\u00edho rozsahu a sou\u010dasn\u011b potla\u010dit ne\u017e\u00e1douc\u00ed n\u00edzkofrekven\u010dn\u00ed slo\u017eky, kter\u00e9 by jinak zakr\u00fdvaly nebo p\u0159ehlu\u0161ovaly sledovan\u00e9 sign\u00e1ly.<\/p>\n<h2>1. Vlastnosti filtru<\/h2>\n<p>Chov\u00e1n\u00ed ka\u017ed\u00e9ho filtru horn\u00ed propusti ur\u010duj\u00ed t\u0159i parametry: jeho mezn\u00ed frekvence, sklon a z\u00e1kladn\u00ed typ konstrukce.<\/p>\n<ul>\n<li><strong>Mezn\u00ed frekvence (f<sub>c<\/sub>):<\/strong> frekvence, p\u0159i kter\u00e9 odezva filtru klesne na \u22123 dB (70,7 % amplitudy v propustn\u00e9m p\u00e1smu). Pod f<sub>c<\/sub> frekvence se postupn\u011b tlum\u00ed; nad f<sub>c<\/sub> proch\u00e1zej\u00ed s minim\u00e1ln\u00edmi ztr\u00e1tami. Mezn\u00ed frekvence se vol\u00ed podle konkr\u00e9tn\u00edho pou\u017eit\u00ed a po\u017eadovan\u00e9ho frekven\u010dn\u00edho rozsahu.<\/li>\n<li><strong>Sklon filtru (rychlost poklesu):<\/strong> m\u00edra \u00fatlumu pod mezn\u00ed frekvenc\u00ed, vyj\u00e1d\u0159en\u00e1 v dB na okt\u00e1vu nebo dB na dek\u00e1du. A <strong>1st-order<\/strong> filtr m\u00e1 pokles 6 dB\/okt\u00e1vu (20 dB\/dek\u00e1du) \u2013 m\u00edrn\u00fd sklon; a <strong>2nd-order<\/strong> p\u0159i 12 dB\/okt\u00e1vu (40 dB\/dek\u00e1du) \u2014 st\u0159edn\u00ed; a <strong>4th-order<\/strong> p\u0159i 24 dB\/okt\u00e1vu (80 dB\/dek\u00e1du) \u2013 strm\u00fd. Vy\u0161\u0161\u00ed \u0159\u00e1dy zaji\u0161\u0165uj\u00ed ost\u0159ej\u0161\u00ed p\u0159echod a lep\u0161\u00ed potla\u010den\u00ed, jejich realizace je v\u0161ak slo\u017eit\u011bj\u0161\u00ed.<\/li>\n<\/ul>\n<p>The filter <strong>typ<\/strong> ur\u010duje kompromis mezi ostrost\u00ed a v\u011brnost\u00ed:<\/p>\n<ul>\n<li><strong>Butterworth:<\/strong> co nejrovnom\u011brn\u011bj\u0161\u00ed frekven\u010dn\u00ed charakteristika v propustn\u00e9m p\u00e1smu.<\/li>\n<li><strong>\u010ceby\u0161ev:<\/strong> ost\u0159ej\u0161\u00ed mezn\u00ed frekvence, av\u0161ak s kol\u00eds\u00e1n\u00edm v propustn\u00e9m p\u00e1smu.<\/li>\n<li><strong>Bessel:<\/strong> nejlep\u0161\u00ed chov\u00e1n\u00ed v \u010dasov\u00e9 oblasti, s minim\u00e1ln\u00edmi <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/phase\/\">f\u00e1ze<\/a> distortion.<\/li>\n<li><strong>Eliptick\u00fd:<\/strong> nejstrm\u011bj\u0161\u00ed p\u0159echod ze v\u0161ech, av\u0161ak s vln\u011bn\u00edm jak v propustn\u00e9m, tak v z\u00e1dr\u017en\u00e9m p\u00e1smu.<\/li>\n<\/ul>\n<h2>2. Aplikace v anal\u00fdze vibrac\u00ed<\/h2>\n<h3>Detekce z\u00e1vad lo\u017eisek<\/h3>\n<p>Jedn\u00e1 se o nejb\u011b\u017en\u011bj\u0161\u00ed zp\u016fsob pou\u017eit\u00ed. Odfiltrov\u00e1n\u00ed frekvenc\u00ed v rozmez\u00ed obvykle 500\u20132000 Hz odstran\u00ed n\u00edzkofrekven\u010dn\u00ed vibrace zp\u016fsoben\u00e9 nevyv\u00e1\u017eenost\u00ed a nesouosost\u00ed, p\u0159i\u010dem\u017e zachov\u00e1 vysokofrekven\u010dn\u00ed sign\u00e1ly n\u00e1raz\u016f vyvolan\u00e9 po\u0161kozen\u00edm lo\u017eiska. Jedn\u00e1 se o prvn\u00ed f\u00e1zi zpracov\u00e1n\u00ed v r\u00e1mci anal\u00fdzy ob\u00e1lky, kter\u00e1 n\u00e1sledn\u011b tyto n\u00e1razy demoduluje, aby odhalila <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/bearing-fault-frequencies\/\">frekvence poruch lo\u017eisek<\/a>.<\/p>\n<h3>Integrace na rychlost nebo posun<\/h3>\n<p>Kdy\u017e <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/integration\/\">integrace<\/a> <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/acceleration\/\">zrychlen\u00ed<\/a> na <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/velocity\/\">rychlost<\/a> nebo <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/displacement\/\">v\u00fdchylka<\/a>, HPF s nastavenou frekvenc\u00ed 2\u201310 Hz odstra\u0148uje stejnosm\u011brn\u00fd posun a velmi n\u00edzk\u00e9 frekvence, kter\u00e9 by jinak p\u0159i integraci vedly k velk\u00fdm chyb\u00e1m driftu. Tento krok je nezbytn\u00fd pro p\u0159esnou integraci v n\u00edzkofrekven\u010dn\u00edm p\u00e1smu.<\/p>\n<h3>Rezonance upevn\u011bn\u00ed sn\u00edma\u010de \u2014 \u00faloha omezen\u00ed p\u00e1sma<\/h3>\n<p>An <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/accelerometer\/\">akcelerometr<\/a> rezonance upevn\u011bn\u00ed \u2014 typicky 3\u201310 kHz pro magnetick\u00e9 uchycen\u00ed \u2014 m\u016f\u017ee zkreslit ode\u010dty. Proto\u017ee tento artefakt le\u017e\u00ed ve vysok\u00fdch frekvenc\u00edch, horn\u00ed propust jej neodstran\u00ed: potla\u010duje se omezen\u00edm horn\u00ed frekven\u010dn\u00ed hranice pomoc\u00ed doln\u00ed propusti (omezen\u00ed p\u00e1sma), nebo t\u00edm, \u017ee analytick\u00e9 p\u00e1smo z\u016fstane pod rezonanc\u00ed. V ob\u00e1lkov\u00e9 anal\u00fdze lze rezonan\u010dn\u00ed oblast dokonce z\u00e1m\u011brn\u011b pou\u017e\u00edt jako nosn\u00e9 p\u00e1smo demodulace. Spr\u00e1vn\u00e1 <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/mounting\/\">mont\u00e1\u017e sn\u00edma\u010de<\/a> Spr\u00e1vn\u00e1 praxe dopl\u0148uje filtrov\u00e1n\u00ed.<\/p>\n<h3>Odstran\u011bn\u00ed DC posunu<\/h3>\n<p>Filtr horn\u00ed propust s velmi n\u00edzkou mezn\u00ed frekvenc\u00ed (0,5\u20132 Hz) odstra\u0148uje stejnosm\u011brnou slo\u017eku sign\u00e1lu. To je nezbytn\u00e9 pro spr\u00e1vn\u00e9 zpracov\u00e1n\u00ed sign\u00e1lu, aby se zabr\u00e1nilo <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/fft\/\">Rychl\u00e1 Fourierova transformace (FFT)<\/a> chyby a odchylky v integraci.<\/p>\n<h2>3. Praktick\u00e9 proveden\u00ed<\/h2>\n<h3>Analogov\u00e9 versus digit\u00e1ln\u00ed filtry<\/h3>\n<p><strong>Analogov\u00e9 filtry horn\u00ed propust<\/strong> jsou hardwarov\u00e9 obvody uvnit\u0159 \u0159et\u011bzce \u00fapravy sign\u00e1lu. Pracuj\u00ed v re\u00e1ln\u00e9m \u010dase jako sou\u010d\u00e1st kondicionov\u00e1n\u00ed sign\u00e1lu sn\u00edma\u010de (anti-aliasingov\u00e1 f\u00e1ze, kter\u00e1 je doprov\u00e1z\u00ed, je doln\u00ed propust) a po n\u00e1vrhu maj\u00ed pevn\u00e9 charakteristiky. <strong>Digit\u00e1ln\u00ed filtry horn\u00ed propust<\/strong> jsou softwarov\u00e9 a pou\u017e\u00edvaj\u00ed se p\u0159i n\u00e1sledn\u00e9m zpracov\u00e1n\u00ed; jejich mezn\u00ed frekvence a \u0159\u00e1d jsou nastaviteln\u00e9 a lze je aplikovat nebo odstranit a\u017e po sb\u011bru dat. Modern\u00ed analyz\u00e1tory nab\u00edzej\u00ed \u0159adu mo\u017enost\u00ed digit\u00e1ln\u00edch filtr\u016f, tak\u017ee stejn\u00fd z\u00e1znam lze zkoumat n\u011bkolika zp\u016fsoby.<\/p>\n<h3>Volba mezn\u00ed frekvence<\/h3>\n<p>Pro <strong>anal\u00fdza lo\u017eisek<\/strong>, set f<sub>c<\/sub> v\u00fdrazn\u011b nad slo\u017ekami souvisej\u00edc\u00edmi s rotorem \u2014 typicky mezn\u00ed frekvence 500\u20131000 Hz. T\u00edm se odstran\u00ed 1\u00d7, 2\u00d7 a dal\u0161\u00ed n\u00edzkofrekven\u010dn\u00ed slo\u017eky stroje a propust\u00ed se vysokofrekven\u010dn\u00ed oblast konstruk\u010dn\u00ed rezonance buzen\u00e1 r\u00e1zy v lo\u017eisku. V\u0161imn\u011bte si, \u017ee samotn\u00e9 opakovac\u00ed frekvence poruch lo\u017eiska (typicky 50\u2013500 Hz) le\u017e\u00ed pod takovou mezn\u00ed frekvenc\u00ed: n\u00e1sledn\u011b se z\u00edsk\u00e1vaj\u00ed ve spektru ob\u00e1lky demodulac\u00ed vysokofrekven\u010dn\u00edho sign\u00e1lu, nikoli p\u0159\u00edm\u00fdm pr\u016fchodem filtrem. Pro <strong>integrace<\/strong>, set f<sub>c<\/sub> p\u0159i 2\u20135n\u00e1sobku nejni\u017e\u0161\u00ed sledovan\u00e9 frekvence: p\u0159\u00edli\u0161 n\u00edzk\u00e1 hodnota umo\u017e\u0148uje drift, p\u0159\u00edli\u0161 vysok\u00e1 zase potla\u010duje platn\u00e9 n\u00edzkofrekven\u010dn\u00ed slo\u017eky; pro b\u011b\u017enou integraci je typick\u00fd rozsah 2\u201310 Hz.<\/p>\n<h2>4. Vliv na m\u011b\u0159en\u00ed<\/h2>\n<p>Filtr horn\u00ed propust m\u011bn\u00ed sign\u00e1l t\u0159emi zp\u016fsoby, kter\u00e9 mus\u00ed analytik br\u00e1t v \u00favahu:<\/p>\n<ul>\n<li><strong>Vlivy amplitudy:<\/strong> frekvence pod mezn\u00ed hodnotou jsou potla\u010deny, velmi n\u00edzk\u00e9 frekvence jsou prakticky zcela odstran\u011bny a frekvence v\u00fdrazn\u011b nad mezn\u00ed hodnotou z\u016fst\u00e1vaj\u00ed nedot\u010deny; v p\u0159echodov\u00e9 oblasti doch\u00e1z\u00ed sp\u00ed\u0161e k postupn\u00e9mu \u00fatlumu ne\u017e k n\u00e1hl\u00e9mu zlomu.<\/li>\n<li><strong>Phase effects:<\/strong> v\u0161echny filtry zp\u016fsobuj\u00ed frekven\u010dn\u011b z\u00e1visl\u00e9 <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/phase\/\">f\u00e1ze<\/a> posun, kter\u00fd m\u016f\u017ee zm\u011bnit tvar sign\u00e1lu v \u010dasov\u00e9 oblasti. Besselovy filtry toto f\u00e1zov\u00e9 zkreslen\u00ed minimalizuj\u00ed, co\u017e je d\u016fle\u017eit\u00e9 p\u0159i interpretaci \u010dasov\u00e9ho pr\u016fb\u011bhu sign\u00e1lu.<\/li>\n<li><strong>Efekty vlnov\u00fdch pr\u016fb\u011bh\u016f:<\/strong> filtr odstra\u0148uje n\u00edzkofrekven\u010dn\u00ed v\u00fdkyvy z\u00e1kladn\u00ed linie a centruje <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/time-waveform\/\">\u010dasov\u00fd pr\u016fb\u011bh<\/a> kolem nuly, co\u017e m\u016f\u017ee zm\u011bnit jej\u00ed zd\u00e1nliv\u00fd charakter. P\u0159i interpretaci pr\u016fb\u011bhu sign\u00e1lu je proto d\u016fle\u017eit\u00e9 v\u011bd\u011bt, jak\u00e9 filtrov\u00e1n\u00ed bylo pou\u017eito.<\/li>\n<\/ul>\n<h2>5. Kombinace vysokop\u00e1smov\u00fdch filtr\u016f s jin\u00fdmi filtry<\/h2>\n<p>Filtry horn\u00ed propusti se m\u00e1lokdy pou\u017e\u00edvaj\u00ed samostatn\u011b. Spojen\u00edm filtru horn\u00ed propusti a filtru doln\u00ed propusti vznikne <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/band-pass-filter\/\">p\u00e1smov\u00e1 propust<\/a>: HPF potla\u010duje n\u00edzk\u00e9 frekvence, LPF potla\u010duje vysok\u00e9 frekvence a jejich kombinace propou\u0161t\u00ed pouze st\u0159edn\u00ed p\u00e1smo \u2013 co\u017e je p\u0159esn\u011b ta selektivita, kter\u00e1 je pot\u0159ebn\u00e1 k izolaci konkr\u00e9tn\u00edho frekven\u010dn\u00edho rozsahu. V pln\u00e9m <strong>v\u00edcestup\u0148ov\u00e9 zpracov\u00e1n\u00ed<\/strong> v \u0159et\u011bzci se p\u0159ed digitalizac\u00ed pou\u017eije anti-aliasing filtr (n\u00edzkop\u00e1smov\u00fd), vysokop\u00e1smov\u00fd filtr odstran\u00ed stejnosm\u011brnou slo\u017eku a p\u00e1smov\u00fd filtr uprav\u00ed sign\u00e1l pro anal\u00fdzu ob\u00e1lky; toto postupn\u00e9 filtrov\u00e1n\u00ed vytv\u00e1\u0159\u00ed komplexn\u00ed \u00fapravu sign\u00e1lu z jednoduch\u00fdch stup\u0148\u016f. Pokud je naopak t\u0159eba potla\u010dit jedinou \u00fazkou slo\u017eku, <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/notch-filter\/\">z\u00e1\u0159ezov\u00fd filtr<\/a> je dopl\u0148kov\u00fd n\u00e1stroj.<\/p>\n<h2>6. Vysokop\u00e1smov\u00e1 filtrace p\u0159i m\u011b\u0159en\u00ed v ter\u00e9nu<\/h2>\n<p>P\u0159i ka\u017edodenn\u00ed pr\u00e1ci v ter\u00e9nu je to pr\u00e1v\u011b spr\u00e1vn\u00e9 nastaven\u00ed vysokop\u00e1smov\u00e9ho filtru, d\u00edky kter\u00e9mu lze pod dominantn\u00edmi vibracemi rotoru odhalit i slab\u00e9 z\u00e1vady lo\u017eisek. P\u0159enosn\u00fd dvoukan\u00e1lov\u00fd analyz\u00e1tor, jako je nap\u0159\u00edklad <a href=\"https:\/\/vibromera.eu\/cs\/produkt\/balanset-1\/\">Balanset-1A<\/a> m\u011b\u0159\u00ed \u0161irokop\u00e1smov\u00fd sign\u00e1l pot\u0159ebn\u00fd jak pro vyv\u00e1\u017een\u00ed, tak pro diagnostiku, a pou\u017eit\u00ed vysokop\u00e1smov\u00e9ho filtru p\u0159ed anal\u00fdzou ob\u00e1lky umo\u017e\u0148uje technikovi odd\u011blit \u010dasn\u00e9 <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/bearing-defects\/\">vady lo\u017eisek<\/a> od v\u00fdrazn\u00e9 odezvy na 1\u00d7 nerovnov\u00e1hu na stejn\u00e9m za\u0159\u00edzen\u00ed. Porozum\u011bn\u00ed vlastnostem vysokop\u00e1smov\u00e9ho filtru \u2013 mezn\u00ed frekvenci, \u0159\u00e1du filtru a vliv\u016fm na amplitudu a f\u00e1zi \u2013 je proto nezbytn\u00e9 pro anal\u00fdzu stavu lo\u017eisek, spolehlivou integraci sign\u00e1lu a jak\u00fdkoli \u00fakol, kter\u00fd vy\u017eaduje frekven\u010dn\u011b selektivn\u00ed m\u011b\u0159en\u00ed.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/cs\/glossary\/\">\u2190 Zp\u011bt na hlavn\u00ed index<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Seznamte se s horn\u00edmi propusti v anal\u00fdze vibrac\u00ed, n\u00e1stroji pro zpracov\u00e1n\u00ed sign\u00e1lu, kter\u00e9 propou\u0161t\u011bj\u00ed frekvence nad mezn\u00ed hodnotou a z\u00e1rove\u0148 blokuj\u00ed n\u00edzk\u00e9 frekvence, co\u017e je nezbytn\u00e9 pro detekci vad lo\u017eisek.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-137","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/glossary\/137","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":2,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/glossary\/137\/revisions"}],"predecessor-version":[{"id":102174,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/glossary\/137\/revisions\/102174"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/media?parent=137"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/categories?post=137"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/tags?post=137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}