{"id":158,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/low-pass-filter\/"},"modified":"2026-05-23T22:43:47","modified_gmt":"2026-05-23T22:43:47","slug":"low-pass-filter","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/fi\/glossary\/low-pass-filter\/","title":{"rendered":"Mik\u00e4 on alip\u00e4\u00e4st\u00f6suodin? Reunanpehmennys ja tasoitus"},"content":{"rendered":"<h1>Alip\u00e4\u00e4st\u00f6suodattimien ymm\u00e4rt\u00e4minen<\/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\/fi\/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\/fi\/product\/balanset-1\/\" title=\"Kannettava tasapainotin ja t\u00e4rin\u00e4analysaattori 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 kannettava tasapainotin ja v\u00e4r\u00e4htelyanalysaattori, t\u00e4ydellinen sarja\" 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\/fi\/product-category\/devices\/\" rel=\"tag\">Laitteet<\/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\/fi\/product\/balanset-1\/\" title=\"Kannettava tasapainotin ja t\u00e4rin\u00e4analysaattori Balanset-1A\">Kannettava tasapainotin &#038; t\u00e4rin\u00e4analysaattori 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> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/158?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/158?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/product\/vibration-sensor\/\" title=\"T\u00e4rin\u00e4anturi\">\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:n t\u00e4rin\u00e4anturin l\u00e4hikuva\" 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\/fi\/product-category\/parts\/\" rel=\"tag\">Osat<\/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\/fi\/product\/vibration-sensor\/\" title=\"T\u00e4rin\u00e4anturi\">T\u00e4rin\u00e4anturi<\/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> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/158?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/158?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optinen anturi (lasertakometri)\">\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=\"Optinen anturi (lasertakometri)\" 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\/fi\/product-category\/parts\/\" rel=\"tag\">Osat<\/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\/fi\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optinen anturi (lasertakometri)\">Optinen anturi (lasertakometri)<\/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> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/158?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/158?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/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-roottorin tasapainotussarja: kantolaukku, monikanavainen signaalimuunnin, k\u00e4dess\u00e4 pidett\u00e4v\u00e4 analysaattori, magneettijalusta, t\u00e4rin\u00e4anturit ja kierretyt kaapelit.\" 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\/fi\/product-category\/devices\/\" rel=\"tag\">Laitteet<\/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\/fi\/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> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/158?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/158?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/product\/magnet-stand\/\" title=\"Magneettinen jalusta 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=\"Magneettipohja.\" 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\/fi\/product-category\/parts\/\" rel=\"tag\">Osat<\/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\/fi\/product\/magnet-stand\/\" title=\"Magneettinen jalusta Insize-60-kgf\">Magneettinen jalusta 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\">&euro;<\/span>46.00<\/span> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/158?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/158?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/product\/reflective-tape\/\" title=\"Heijastava nauha\">\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=\"Heijastava nauha\" 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\/fi\/product-category\/parts\/\" rel=\"tag\">Osat<\/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\/fi\/product\/reflective-tape\/\" title=\"Heijastava nauha\">Heijastava nauha<\/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>10.00<\/span> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/158?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/158?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynaaminen tasapainotin &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=\"Balanset-1A-pakkauksen sis\u00e4lt\u00f6, jossa on liit\u00e4nt\u00e4yksikk\u00f6, anturit, kierroslukumittari ja lis\u00e4varusteet\" 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\/fi\/product-category\/devices\/\" rel=\"tag\">Laitteet<\/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\/fi\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynaaminen tasapainotin &quot;Balanset-1A&quot; OEM\">Dynaaminen tasapainotin \"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\">&euro;<\/span>1,735.00<\/span> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/158?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/158?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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>alip\u00e4\u00e4st\u00f6suodatin<\/strong> (LPF) on taajuusselektiivinen signaalink\u00e4sittelyelementti, jonka avulla <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/vibration\/\">t\u00e4rin\u00e4<\/a> valitun rajataajuuden alapuolella olevat komponentit p\u00e4\u00e4sev\u00e4t l\u00e4pi, kun taas sen yl\u00e4puolella olevat komponentit vaimenevat. <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/vibration-analysis\/\">v\u00e4r\u00e4htelyanalyysi<\/a> se suorittaa kolme teht\u00e4v\u00e4\u00e4, joita analysaattori ei voi tehd\u00e4 ilman: anti-aliasing (est\u00e4\u00e4 v\u00e4\u00e4rien taajuuksien esiintymisen digitaalisissa tiedoissa), kohinanvaimennus sek\u00e4 matalataajuusalueen erottelu tarkempaa tutkimusta varten. Se on peilikuva <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/high-pass-filter\/\">ylip\u00e4\u00e4st\u00f6suodatin<\/a>, ja n\u00e4m\u00e4 kaksi ovat kaikkien muiden peruselementtej\u00e4 <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/signal-filtering\/\">signaalin suodatus<\/a> j\u00e4rjestelm\u00e4.<\/p>\n<p>Alip\u00e4\u00e4st\u00f6suodattimet ovat luultavasti t\u00e4rin\u00e4mittauksessa yleisimmin k\u00e4ytettyj\u00e4 suodattimia. Jokaisessa digitointij\u00e4rjestelm\u00e4ss\u00e4 on muuntimen edess\u00e4 pakollinen aliasing-suodatin, ja samaa toimintoa hy\u00f6dynnet\u00e4\u00e4n analyysity\u00f6kaluna datan tasoittamiseen, korkeataajuisten h\u00e4iri\u00f6iden poistamiseen ja matalataajuisten ilmi\u00f6iden erottamiseen. Siksi on olennaisen t\u00e4rke\u00e4\u00e4 ymm\u00e4rt\u00e4\u00e4, miten ne muokkaavat signaalia, jotta tuloksiin voi luottaa <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/spectrum\/\">spektri<\/a> luit.<\/p>\n<h2>1. Suodattimen ominaisuudet<\/h2>\n<h3>Raja-taajuus (f<sub>c<\/sub>)<\/h3>\n<ul>\n<li><strong>M\u00e4\u00e4ritelm\u00e4:<\/strong> taajuus, jolla suodattimen vaste on laskenut arvoon &minus;3 dB, eli 70,7 % l\u00e4p\u00e4isyalueen amplitudista.<\/li>\n<li><strong>Alla f<sub>c<\/sub> (l\u00e4p\u00e4isykaista):<\/strong> taajuudet kulkevat l\u00e4pi vain v\u00e4h\u00e4isell\u00e4 vaimennuksella.<\/li>\n<li><strong>Yli f<sub>c<\/sub> (pys\u00e4ytyskaista):<\/strong> taajuudet vaimenevat asteittain.<\/li>\n<li><strong>Siirtym\u00e4kaistale:<\/strong> f:n ymp\u00e4rill\u00e4 oleva alue<sub>c<\/sub> jossa vaimennus kasvaa tasaisesti.<\/li>\n<\/ul>\n<h3>Suodatinkertaluku ja vaimennusjyrkkyys<\/h3>\n<p>Suodattimen kertaluku m\u00e4\u00e4ritt\u00e4\u00e4, kuinka jyrk\u00e4sti se siirtyy l\u00e4p\u00e4isykaistalta estokaistalle:<\/p>\n<ul>\n<li><strong>1. kertaluku:<\/strong> 6 dB\/oktaavi (20 dB\/dekadi) \u2014 asteittainen vaimennus.<\/li>\n<li><strong>2. kertaluku:<\/strong> 12 dB\/oktaavi (40 dB\/dekadi) \u2014 kohtalainen.<\/li>\n<li><strong>4. kertaluku:<\/strong> 24 dB\/oktaavi (80 dB\/dekadi) \u2014 jyrkk\u00e4.<\/li>\n<li><strong>8. kertaluku:<\/strong> 48 dB\/oktaavi (160 dB\/dekadi) \u2014 eritt\u00e4in jyrkk\u00e4.<\/li>\n<li><strong>Korkeampi kertaluku:<\/strong> ter\u00e4v\u00e4mpi siirtym\u00e4 ja parempi pys\u00e4ytyskaistan vaimennus, mutta vaiheensiirto on suurempi ja transienttivaste hitaampi.<\/li>\n<\/ul>\n<h3>Suodatinvastaustyypit<\/h3>\n<p>Sama rajak\u00e4yr\u00e4 ja j\u00e4rjestys voidaan toteuttaa erilaisilla matemaattisilla muodoilla, joista kukin vaikuttaa tasaisuuteen, ter\u00e4vyyteen ja vaihek\u00e4ytt\u00e4ytymiseen:<\/p>\n<ul>\n<li><strong>Butterworth:<\/strong> mahdollisimman tasainen l\u00e4p\u00e4isykaista ilman aaltoilua.<\/li>\n<li><strong>T\u0161eby\u0161ev:<\/strong> ter\u00e4v\u00e4mpi rajataajuus, jolloin aaltoilu sallitaan l\u00e4p\u00e4isykaistalla.<\/li>\n<li><strong>Bessel:<\/strong> lineaarinen vaihe, mik\u00e4 tarkoittaa aaltomuodon minimaalista v\u00e4\u00e4ristymist\u00e4 \u2014 oikea valinta, kun aaltomuodon <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/time-waveform\/\">aika-aaltomuoto<\/a> on merkityst\u00e4.<\/li>\n<li><strong>Elliptinen:<\/strong> mahdollisimman jyrkk\u00e4 siirtym\u00e4, jossa on aaltoilua sek\u00e4 l\u00e4p\u00e4isy- ett\u00e4 estokaistalla.<\/li>\n<\/ul>\n<h2>2. T\u00e4rkeimm\u00e4t k\u00e4ytt\u00f6kohteet<\/h2>\n<h3>Anti-aliasing (t\u00e4rkein)<\/h3>\n<p>T\u00e4m\u00e4 on toiminto, jota mik\u00e4\u00e4n digitointilaite ei voi j\u00e4tt\u00e4\u00e4 pois. Ilman sit\u00e4 Nyquistin rajan ylitt\u00e4v\u00e4t taajuudet taittuvat takaisin ja n\u00e4kyv\u00e4t v\u00e4\u00e4rin\u00e4 piikkein\u00e4 \u2014 ilmi\u00f6, jota kutsutaan <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/aliasing\/\">aliasointi<\/a>.<\/p>\n<ul>\n<li><strong>Tarkoitus:<\/strong> est\u00e4\u00e4 taajuudet, jotka ylitt\u00e4v\u00e4t Nyquistin taajuuden (puolet n\u00e4ytetaajuudesta).<\/li>\n<li><strong>Vaatimus:<\/strong> sen on toimittava <em>ennen<\/em> analogisesta digitaaliseen muunnos \u2014 ohjelmisto ei pysty poistamaan alias-ilmi\u00f6t\u00e4 j\u00e4lkik\u00e4teen.<\/li>\n<li><strong>Tyypillinen rajataajuus:<\/strong> 0,4&ndash;0,8 &times; (n\u00e4ytetaajuus \/ 2).<\/li>\n<li><strong>Jyrkkyys:<\/strong> Tyypillisesti 8. asteen tai korkeampi hyv\u00e4 aliasing-vaimennus<\/li>\n<li><strong>Laiminly\u00f6nnin seuraukset:<\/strong> Riitt\u00e4m\u00e4t\u00f6n anti-aliasing aiheuttaa v\u00e4\u00e4ri\u00e4 spektripiikkej\u00e4, jotka muistuttavat todellisia vikoja.<\/li>\n<\/ul>\n<h3>Melunvaimennus<\/h3>\n<ul>\n<li>Poistaa korkeataajuisen s\u00e4hk\u00f6h\u00e4iri\u00f6n.<\/li>\n<li>Suodattaa anturikaapelin aiheuttaman kohinan.<\/li>\n<li>Tasoittaa tiedot <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/trending\/\">trendin seuranta<\/a>.<\/li>\n<li>Parantaa kiinnostavien matalataajuisten komponenttien signaali-kohinasuhdetta.<\/li>\n<\/ul>\n<h3>Taajuusalueen rajoitus<\/h3>\n<ul>\n<li>Keskitt\u00e4\u00e4 analyysin haluttuun taajuusalueeseen.<\/li>\n<li>Esimerkki: 0&ndash;100 Hz:n taajuusalueen analyysi hitaasti k\u00e4yvien koneiden osalta.<\/li>\n<li>Poistaa tarpeettomat korkeataajuiset komponentit.<\/li>\n<li>V\u00e4hent\u00e4\u00e4 tietojenk\u00e4sittely- ja tallennusvaatimuksia.<\/li>\n<\/ul>\n<h3>Integroinnin valmistelu<\/h3>\n<ul>\n<li>Sovellettu ennen <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/integration\/\">integrointi<\/a> <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/acceleration\/\">kiihtyvyys<\/a> ett\u00e4 <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/velocity\/\">nopeus<\/a>.<\/li>\n<li>Poistaa eritt\u00e4in korkeat taajuudet \u2013 kohinan, jota integraatio muuten vahvistaisi.<\/li>\n<li>Tyypillinen rajataajuus: 1000&ndash;5000 Hz k\u00e4ytt\u00f6tarkoituksesta riippuen.<\/li>\n<li>Est\u00e4\u00e4 kohinan vahvistumisen, joka on hallitsemattoman integroinnin ongelmana.<\/li>\n<\/ul>\n<h2>3. Rajataajuuden valinta<\/h2>\n<h3>Antialiasoinnin sovellukset<\/h3>\n<ul>\n<li><strong>S\u00e4\u00e4nt\u00f6:<\/strong> f<sub>c<\/sub> = 0,4 &times; n\u00e4ytetaajuus (varovainen) \u2013 0,8 &times; n\u00e4ytetaajuus (aggressiivinen).<\/li>\n<li><strong>Esimerkki:<\/strong> 10 kHz:n n\u00e4ytetaajuudella saadaan f<sub>c<\/sub> = 4000 Hz.<\/li>\n<li><strong>Kriteeri:<\/strong> estokaistan vaimennus yli 60 dB Nyquistin taajuudella.<\/li>\n<\/ul>\n<h3>Analyyttiset sovellukset<\/h3>\n<ul>\n<li>Aseta f<sub>c<\/sub> juuri sen kiinnostavan taajuuden yl\u00e4puolella.<\/li>\n<li>Matalataajuusanalyysiss\u00e4 (0&ndash;200 Hz): f<sub>c<\/sub> = 200&ndash;300 Hz.<\/li>\n<li>Sill\u00e4 <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/unbalance\/\">ep\u00e4tasapaino<\/a> vain (1&times;-komponentti): f<sub>c<\/sub> = 5&ndash;10&times; <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/running-speed\/\">k\u00e4yntinopeus<\/a>.<\/li>\n<li>J\u00e4t\u00e4 aina tilaa suodattimen siirtym\u00e4alueelle.<\/li>\n<\/ul>\n<h3>Melunvaimennus<\/h3>\n<ul>\n<li>M\u00e4\u00e4rit\u00e4 spektrist\u00e4 melun taajuusalue.<\/li>\n<li>Aseta f<sub>c<\/sub> suodattaa signaalitaajuudet l\u00e4pi ja vaimentaa samalla kohinataajuudet.<\/li>\n<li>Punnitse melunpoistoa ja signaalin s\u00e4ilytt\u00e4mist\u00e4 toisiaan vastaan.<\/li>\n<\/ul>\n<h2>4. Vaikutukset mittauksiin<\/h2>\n<h3>Amplitudialue<\/h3>\n<ul>\n<li><strong>P\u00e4\u00e4st\u00f6kaista:<\/strong> vain v\u00e4h\u00e4inen amplitudin muutos, tyypillisesti alle 0,5 dB.<\/li>\n<li><strong>Estokaista:<\/strong> voimakas vaimennus, 40&ndash;80 dB tai enemm\u00e4n.<\/li>\n<li><strong>Yleinen taso:<\/strong> suodatin pienent\u00e4\u00e4 t\u00e4rin\u00e4n kokonaislukemaa, jos t\u00e4rin\u00e4ss\u00e4 on huomattava m\u00e4\u00e4r\u00e4 korkeita taajuuksia.<\/li>\n<\/ul>\n<h3>Aika-alue<\/h3>\n<ul>\n<li>Aaltomuoto tasoittuu, kun korkeataajuiset vaihtelut poistetaan.<\/li>\n<li>Ter\u00e4v\u00e4t reunat ja piikit py\u00f6ristyv\u00e4t.<\/li>\n<li>Transienttivaste (suodattimen soitto\u00e4\u00e4ni) voi vaikuttaa aaltomuodon muotoon<\/li>\n<li>Vaihevirhe voi vaikuttaa aaltomuodon tulkintaan.<\/li>\n<\/ul>\n<h3>Taajuusalue<\/h3>\n<ul>\n<li>Spektri osoittaa amplitudien pienenev\u00e4n rajataajuuden yl\u00e4puolella.<\/li>\n<li>Korkeataajuiset piikit vaimenevat tai h\u00e4vi\u00e4v\u00e4t kokonaan.<\/li>\n<li>Kohinataso laskee, jos kohina oli korkeataajuista.<\/li>\n<\/ul>\n<h2>5. Yleisi\u00e4 ongelmia ja ratkaisuja<\/h2>\n<h3>Riitt\u00e4m\u00e4t\u00f6n antialiasointi<\/h3>\n<ul>\n<li><strong>Oire:<\/strong> spektrin virheelliset matalataajuiset piikit.<\/li>\n<li><strong>Syy:<\/strong> korkeat taajuudet taittuvat takaisin Nyquistin taajuuden alapuolelle.<\/li>\n<li><strong>Ratkaisu:<\/strong> k\u00e4yt\u00e4 jyrkemp\u00e4\u00e4 suodatinta, nosta n\u00e4ytetaajuutta ja varmista, ett\u00e4 suodatin todella toimii.<\/li>\n<\/ul>\n<h3>Raja liian matala<\/h3>\n<ul>\n<li><strong>Oire:<\/strong> kelvolliset suurtaajuussignaalit vaimenevat.<\/li>\n<li><strong>Esimerkki:<\/strong> <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/bearing-fault-frequencies\/\">laakerivikataajuudet<\/a> heikentynyt liian voimakkaan alip\u00e4\u00e4st\u00f6suotimen vuoksi.<\/li>\n<li><strong>Ratkaisu:<\/strong> nosta rajataajuutta tai k\u00e4yt\u00e4 loivempaa suodatinkulmaa.<\/li>\n<\/ul>\n<h3>Suodattimen artefaktit<\/h3>\n<ul>\n<li><strong>Resonointi:<\/strong> ter\u00e4v\u00e4n suodattimen rajataajuuden aiheuttamat v\u00e4r\u00e4htelyt aikatasossa.<\/li>\n<li><strong>Vaihepoikkeama:<\/strong> vaiheensiirroista johtuvat aaltomuodon muutokset.<\/li>\n<li><strong>Ratkaisu:<\/strong> K\u00e4yt\u00e4 Bessel-suodatinta kriittisiss\u00e4 aaltomuotosovelluksissa, joissa vaiheen lineaarisuus on t\u00e4rke\u00e4\u00e4.<\/li>\n<\/ul>\n<h2>6. T\u00e4ydent\u00e4v\u00e4t suodattimet<\/h2>\n<h3>Alip\u00e4\u00e4st\u00f6 vs. ylip\u00e4\u00e4st\u00f6<\/h3>\n<ul>\n<li><strong>Alip\u00e4\u00e4st\u00f6:<\/strong> p\u00e4\u00e4st\u00e4\u00e4 l\u00e4pi matalat taajuudet ja est\u00e4\u00e4 korkeat.<\/li>\n<li><strong>Ylip\u00e4\u00e4st\u00f6:<\/strong> p\u00e4\u00e4st\u00e4\u00e4 l\u00e4pi korkeat taajuudet ja est\u00e4\u00e4 matalat.<\/li>\n<li><strong>T\u00e4ydent\u00e4v\u00e4:<\/strong> k\u00e4ytet\u00e4\u00e4n yhdess\u00e4 kaistanp\u00e4\u00e4st\u00f6suodattimen muodostamiseen.<\/li>\n<\/ul>\n<h3>Kaistanp\u00e4\u00e4st\u00f6suodatin<\/h3>\n<ul>\n<li>Yhdistelm\u00e4 ylip\u00e4\u00e4st\u00f6- ja alip\u00e4\u00e4st\u00f6suodattimia.<\/li>\n<li>Tuloksena on <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/band-pass-filter\/\">kaistanp\u00e4\u00e4st\u00f6suodatin<\/a> p\u00e4\u00e4st\u00e4\u00e4 l\u00e4pi vain m\u00e4\u00e4ritellyn taajuusalueen taajuudet.<\/li>\n<li>Se suodattaa pois sek\u00e4 kyseisen alueen alapuolella ett\u00e4 yl\u00e4puolella olevan sis\u00e4ll\u00f6n.<\/li>\n<li>T\u00e4m\u00e4 on <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/envelope-analysis\/\">verhok\u00e4yr\u00e4analyysi<\/a>, jossa laakerin rakenteellisen resonanssin ymp\u00e4rill\u00e4 oleva kaista erotetaan ennen demodulointia.<\/li>\n<\/ul>\n<h2>7. Alip\u00e4\u00e4st\u00f6suodattimen rooli kentt\u00e4k\u00e4yt\u00f6ss\u00e4<\/h2>\n<p>Digitaalisessa kentt\u00e4mittarissa alip\u00e4\u00e4st\u00f6suodatin on useimmiten n\u00e4kym\u00e4t\u00f6n \u2013 se hoitaa anti-aliasing-teht\u00e4v\u00e4ns\u00e4 huomaamattomasti mittausketjun sis\u00e4ll\u00e4 \u2013 mutta se on kuitenkin jokaisen lukeman luotettavuuden perusta. Kannettava kaksikanavainen analysaattori, kuten <a href=\"https:\/\/vibromera.eu\/fi\/tuote\/balanset-1\/\">Balanset-1A<\/a> rajoittaa kunkin <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/accelerometer\/\">kiihtyvyysanturi<\/a> kanava ennen n\u00e4ytteenottoa, joten <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/fft\/\">FFT<\/a> sen tasapainotusta ja vianm\u00e4\u00e4rityst\u00e4 varten laskemassa spektriss\u00e4 ei esiinny alias-piikkej\u00e4 koko toiminta-alueella. Kun spektri on puhdas, analysaattori pystyy erottamaan 1\u00d7 <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/phase\/\">amplitudi ja vaihe<\/a> tarvitaan roottorin tasapainottamiseen ja todellisen arvon ilmoittamiseen <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/residual-unbalance\/\">j\u00e4\u00e4nn\u00f6sep\u00e4tasapaino<\/a>, sen sijaan ett\u00e4 jahtaisi huonon suodatuksen aiheuttamaa haamutaajuutta.<\/p>\n<p>Alip\u00e4\u00e4st\u00f6suodattimet ovat t\u00e4rin\u00e4nmittausj\u00e4rjestelmien peruskomponentteja, ja niill\u00e4 on keskeisi\u00e4 teht\u00e4vi\u00e4, kuten aliasing-suojaus, kohinanvaimennus ja taajuusalueen valinta. Niiden toimintaperiaatteen ymm\u00e4rt\u00e4minen, rajataajuuden oikea valinta sek\u00e4 niiden vaikutuksen ymm\u00e4rt\u00e4minen mitattuun signaaliin ovat ratkaisevan t\u00e4rkeit\u00e4 tarkkaan analyysiin ja mittausartefaktien v\u00e4ltt\u00e4miseen digitaalisessa tiedonkeruussa.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/fi\/glossary\/\">\u2190 Takaisin p\u00e4\u00e4hakemistoon<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Opi v\u00e4r\u00e4htelyanalyysin alip\u00e4\u00e4st\u00f6suodattimista, signaalink\u00e4sittelyty\u00f6kaluista, jotka p\u00e4\u00e4st\u00e4v\u00e4t l\u00e4pi matalat taajuudet ja est\u00e4v\u00e4t korkeat taajuudet. N\u00e4m\u00e4 ovat olennaisia anti-aliasingissa ja kohinanvaimennuksessa.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-158","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/158","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/158\/revisions"}],"predecessor-version":[{"id":101341,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/158\/revisions\/101341"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/media?parent=158"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/categories?post=158"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/tags?post=158"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}