{"id":313,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/zoom-fft\/"},"modified":"2026-05-23T22:46:55","modified_gmt":"2026-05-23T22:46:55","slug":"zoom-fft","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/nb\/glossary\/zoom-fft\/","title":{"rendered":"Hva er Zoom FFT? Spektralanalyse med h\u00f8y oppl\u00f8sning"},"content":{"rendered":"<h1>Forst\u00e5 Zoom FFT<\/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\/nb\/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\/nb\/product\/balanset-1\/\" title=\"B\u00e6rbart balanseapparat og vibrasjonsanalysator 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 komplett sett med b\u00e6rbart balanseapparat og vibrasjonsanalysator\" 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\/nb\/product-category\/devices\/\" rel=\"tag\">Enheter<\/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\/nb\/product\/balanset-1\/\" title=\"B\u00e6rbart balanseapparat og vibrasjonsanalysator Balanset-1A\">B\u00e6rbart balanseapparat og vibrasjonsanalysator 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> + MVA (hvis aktuelt)<\/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=\"\/nb\/wp-json\/wp\/v2\/glossary\/313?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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/wp-json\/wp\/v2\/glossary\/313?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=\"Legg i handlekurv: \u00abPortable balancer &amp; Vibration analyzer Balanset-1A\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abPortable balancer &amp; Vibration analyzer Balanset-1A\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/product\/vibration-sensor\/\" title=\"Vibrasjonssensor\">\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 vibrasjonssensor i n\u00e6rbilde\" 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\/nb\/product-category\/parts\/\" rel=\"tag\">Deler<\/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\/nb\/product\/vibration-sensor\/\" title=\"Vibrasjonssensor\">Vibrasjonssensor<\/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> + MVA (hvis aktuelt)<\/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=\"\/nb\/wp-json\/wp\/v2\/glossary\/313?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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/wp-json\/wp\/v2\/glossary\/313?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=\"Legg i handlekurv: \u00abVibration sensor\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abVibration sensor\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optisk sensor (lasertakometer)\">\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=\"Optisk sensor (lasertakometer)\" 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\/nb\/product-category\/parts\/\" rel=\"tag\">Deler<\/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\/nb\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optisk sensor (lasertakometer)\">Optisk sensor (lasertakometer)<\/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> + MVA (hvis aktuelt)<\/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=\"\/nb\/wp-json\/wp\/v2\/glossary\/313?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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/wp-json\/wp\/v2\/glossary\/313?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=\"Legg i handlekurv: \u00abOptical Sensor (Laser Tachometer)\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abOptical Sensor (Laser Tachometer)\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/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 rotorbalanseringssett: b\u00e6reveske, flerkanals signalbehandler, h\u00e5ndholdt analysator, magnetisk base, vibrasjonssensorer og spiralkabler.\" 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\/nb\/product-category\/devices\/\" rel=\"tag\">Enheter<\/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\/nb\/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> + MVA (hvis aktuelt)<\/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=\"\/nb\/wp-json\/wp\/v2\/glossary\/313?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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/wp-json\/wp\/v2\/glossary\/313?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=\"Legg i handlekurv: \u00abBalanset-4\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abBalanset-4\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/product\/magnet-stand\/\" title=\"Magnetisk stativ 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=\"Magnetisk 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\/nb\/product-category\/parts\/\" rel=\"tag\">Deler<\/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\/nb\/product\/magnet-stand\/\" title=\"Magnetisk stativ Insize-60-kgf\">Magnetisk stativ 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> + MVA (hvis aktuelt)<\/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=\"\/nb\/wp-json\/wp\/v2\/glossary\/313?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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" 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class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/nb\/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\/nb\/product\/reflective-tape\/\" title=\"Refleksb\u00e5nd\">\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=\"Refleksb\u00e5nd\" 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\/nb\/product-category\/parts\/\" rel=\"tag\">Deler<\/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\/nb\/product\/reflective-tape\/\" title=\"Refleksb\u00e5nd\">Refleksb\u00e5nd<\/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> + MVA (hvis aktuelt)<\/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=\"\/nb\/wp-json\/wp\/v2\/glossary\/313?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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/wp-json\/wp\/v2\/glossary\/313?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=\"Legg i handlekurv: \u00abReflective tape\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abReflective tape\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamisk balanseringsapparat &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-settet inneholder grensesnittenhet, sensorer, turteller og tilbeh\u00f8r\" 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\/nb\/product-category\/devices\/\" rel=\"tag\">Enheter<\/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\/nb\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamisk balanseringsapparat &quot;Balanset-1A&quot; OEM\">Dynamisk balanseringsapparat \"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> + MVA (hvis aktuelt)<\/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=\"\/nb\/wp-json\/wp\/v2\/glossary\/313?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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/wp-json\/wp\/v2\/glossary\/313?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=\"Legg i handlekurv: \u00abDynamic balancer \u201cBalanset-1A\u201d OEM\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abDynamic balancer \u201cBalanset-1A\u201d OEM\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_4193\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/section>\n\t\t\n<p><strong>Zoom FFT<\/strong> \u2014 ogs\u00e5 kalt h\u00f8yoppl\u00f8selig FFT eller frekvenszoom \u2014 er en avansert anvendelse av <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/fft\/\">Rask Fourier-transformasjon<\/a> som konsentrerer den sv\u00e6rt fine frekvensoppl\u00f8sningen innenfor et valgt smalt b\u00e5nd i stedet for \u00e5 spre den tynt utover hele <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/spectrum\/\">spektrum<\/a>. I stedet for \u00e5 analysere frekvensomr\u00e5det 0\u20131000 Hz med en oppl\u00f8sning p\u00e5 1 Hz (1000 linjer), kan en zoom-FFT analysere frekvensomr\u00e5det 95\u2013105 Hz med en oppl\u00f8sning p\u00e5 0,01 Hz \u2013 de samme 1000 linjene, men alle samlet i et 10 Hz-vindu. Denne hundre ganger st\u00f8rre oppl\u00f8sningen gj\u00f8r det mulig for en analytiker \u00e5 skille ut komponenter som ligger tett sammen, slik som <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/sidebands\/\">sideb\u00e5nd<\/a>, fastsl\u00e5 en n\u00f8yaktig toppfrekvens og unders\u00f8ke et bestemt spektralomr\u00e5de i detalj.<\/p>\n<h2>1. Definisjon: Oppl\u00f8sning der det teller<\/h2>\n<p>Zoom FFT er det foretrukne verkt\u00f8yet n\u00e5r diagnostisk informasjon ligger i topper som ligger for tett sammen til at et vanlig spektrum kan skille dem fra hverandre. De typiske tilfellene er motoriske <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/broken-rotor-bars\/\">\u00f8delagte rotorstenger<\/a> (l\u00f8se det lille <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/slip-frequency\/\">slip-frequency<\/a> sideb\u00e5nd rundt 1\u00d7 l\u00f8pehastighet), <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/gear-defects\/\">gear problems<\/a> (ved \u00e5 lese av modulasjonsm\u00f8nsteret rundt nettfrekvensen), og i alle situasjoner der to viktige topper ellers ville smelte sammen til \u00e9n utydelig klump.<\/p>\n<h2>2. Hvorfor Zoom FFT er n\u00f8dvendig<\/h2>\n<h3>Oppl\u00f8sningsgrensen til en standard FFT<\/h3>\n<p>Enhver vanlig FFT f\u00f8lger ett uomst\u00f8telige forhold:<\/p>\n<blockquote><p>Resolution = F<sub>maks<\/sub> \u00f7 Antall linjer.<\/p><\/blockquote>\n<p>For eksempel gir et frekvensomr\u00e5de p\u00e5 0\u20131000 Hz med 800 linjer en oppl\u00f8sning p\u00e5 1,25 Hz \u2013 og to topper som ligger n\u00e6rmere hverandre enn 1,25 Hz, kan ganske enkelt ikke skilles fra hverandre. Dette er et reelt problem ved elektriske feil, der de relevante sideb\u00e5ndene for glidefrekvensen ofte bare ligger 0,5\u20132 Hz fra sentraltoppen.<\/p>\n<h3>Fordeler og ulemper ved brute force<\/h3>\n<ul>\n<li><strong>Reduce F<sub>maks<\/sub>:<\/strong> Ved \u00e5 senke frekvensomr\u00e5det til 0\u2013100 Hz forbedres oppl\u00f8sningen til 0,125 Hz, men alt innhold i h\u00f8yere frekvenser g\u00e5r tapt.<\/li>\n<li><strong>\u00d8k antall linjer:<\/strong> 8000 linjer n\u00e5r ogs\u00e5 0,125 Hz, men krever mye prosessortid og minne.<\/li>\n<li><strong>Zoom FFT:<\/strong> gir den h\u00f8ye oppl\u00f8sningen akkurat der den trengs, samtidig som beregningsbelastningen holdes p\u00e5 et rimelig niv\u00e5 \u2013 det beste fra begge verdener.<\/li>\n<\/ul>\n<p>Du kan f\u00e5 et innblikk i disse avveiningene f\u00f8r du m\u00e5ler med den gratis <a href=\"https:\/\/vibromera.eu\/nb\/calculators\/fft-resolution-calculator\/\">FFT-oppl\u00f8sningskalkulator<\/a>, som viser en direkte sammenheng mellom spennvidde, antall linjer og oppl\u00f8sning.<\/p>\n<h2>3. Slik fungerer Zoom FFT<\/h2>\n<p>Teknikken er et digitalt \u00abforst\u00f8rrelsesglass\u00bb som best\u00e5r av tre signalbehandlingstrinn:<\/p>\n<ol>\n<li><strong>Velg band:<\/strong> Velg en senterfrekvens og b\u00e5ndbredde, for eksempel 100 Hz \u00b1 10 Hz.<\/li>\n<li><strong>Frekvensforskyvning:<\/strong> oversette dette b\u00e5ndet digitalt ned mot DC (baseb\u00e5ndet), slik at det aktuelle omr\u00e5det ligger der FFT-oppl\u00f8sningen naturlig er h\u00f8yest.<\/li>\n<li><strong>Desimering:<\/strong> redusere samplingsfrekvensen i forhold til den innsnevrede b\u00e5ndbredden.<\/li>\n<li><strong>FFT-beregning:<\/strong> utf\u00f8r transformasjonen p\u00e5 signalet med redusert frekvens.<\/li>\n<li><strong>Resultat:<\/strong> et spektrum med h\u00f8y oppl\u00f8sning som kun dekker det valgte smalb\u00e5ndet.<\/li>\n<\/ol>\n<p>Gevinsten er direkte proporsjonal med hvor mye du zoomer inn: hvis du zoomer inn til en tidel av fullt omr\u00e5de, f\u00e5r du ti ganger h\u00f8yere oppl\u00f8sning, s\u00e5 oppl\u00f8sningsgevinsten beregnes ganske enkelt som (fullt omr\u00e5de \u00f7 zoomomr\u00e5de). \u00c5 g\u00e5 fra 0\u20131000 Hz med 1 Hz trinn til et vindu p\u00e5 95\u2013105 Hz med 0,01 Hz trinn gir en hundre ganger h\u00f8yere oppl\u00f8sning.<\/p>\n<h2>4. Bruksomr\u00e5der<\/h2>\n<h3>Deteksjon av feil i motorrotorens stenger<\/h3>\n<p>Den klassiske FFT-zoomingen. Sideb\u00e5nd med frekvensforskjeller p\u00e5 0,5\u20132 Hz ligger for tett til \u00e5 kunne skilles fra hverandre i et standardspektrum, s\u00e5 en zoom p\u00e5 rundt 1\u00d7 <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/running-speed\/\">l\u00f8pehastighet<\/a> ved 0,1 Hz eller bedre skiller dem tydelig fra hverandre og avsl\u00f8rer <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/broken-rotor-bars\/\">\u00f8delagte rotorstenger<\/a>. Sideb\u00e5ndets amplitude i forhold til 1\u00d7-toppen viser hvor mange stolper som er brutt.<\/p>\n<h3>Diagnostikk av utstyr<\/h3>\n<p>Zoom rundt <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/gear-mesh-frequency\/\">girinngrepsfrekvens<\/a> for \u00e5 bestemme sideb\u00e5ndene som er avstandstilpasset akselhastigheten, identifisere <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/hunting-tooth-frequency\/\">jakt-tann-frekvens<\/a> m\u00f8nstre, og skille mellom tannhjulets sideb\u00e5nd og tannhjulets sideb\u00e5nd. Det frie <a href=\"https:\/\/vibromera.eu\/nb\/calculators\/gear-mesh-frequency\/\">Kalkulator for tannhjulens inngrepsfrekvens<\/a> forteller deg hvor du skal plassere zoomet i utgangspunktet.<\/p>\n<h3>Lageranalyse<\/h3>\n<p>Zoom rundt <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/bearing-fault-frequencies\/\">frekvenser av lagerfeil<\/a> for \u00e5 bestemme sideb\u00e5ndsstrukturen, bekrefte den n\u00f8yaktige feilfrekvensen opp mot den beregnede verdien og avlese modulasjonsm\u00f8nsteret som <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/envelope-analysis\/\">konvoluttanalyse<\/a> ellers ville ha.<\/p>\n<h3>Elektrisk frekvensanalyse<\/h3>\n<p>Zoom inn rundt linjefrekvensen eller 2\u00d7 linjefrekvensen for \u00e5 skille ut sideb\u00e5ndene med glidefrekvens i den str\u00f8mrelaterte vibrasjonen og finne <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/pole-pass-frequency\/\">frekvens for stangpassering<\/a> precisely.<\/p>\n<h3>Unders\u00f8kelser av kritisk hastighet<\/h3>\n<p>Zoome inn p\u00e5 en mistenkt <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/natural-frequency\/\">naturlig frekvens<\/a> to fix the <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/resonance\/\">resonans<\/a> n\u00f8yaktig og for \u00e5 m\u00e5le bredden p\u00e5 resonanstoppen, ut fra hvilken <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/damping\/\">demping<\/a> kan ansl\u00e5s.<\/p>\n<h2>5. Driftsprosedyre<\/h2>\n<h3>Oppsett<\/h3>\n<ol>\n<li><strong>Kj\u00f8r f\u00f8rst en standard FFT<\/strong> for \u00e5 finne omr\u00e5det av interesse \u2014 \u00e5 zoome inn er aldri det f\u00f8rste man b\u00f8r gj\u00f8re.<\/li>\n<li><strong>Velg sentrum<\/strong> frekvens for zoomen.<\/li>\n<li><strong>Velg spekteret<\/strong> \u2014 jo smalere, desto h\u00f8yere oppl\u00f8sning.<\/li>\n<li><strong>Angi antall linjer<\/strong> (vanligvis det samme som standard-FFT).<\/li>\n<li><strong>Erverve<\/strong> og la instrumentet beregne zoomen.<\/li>\n<\/ol>\n<h3>Vanlige innstillinger<\/h3>\n<ul>\n<li><strong>Motorsideb\u00e5nd:<\/strong> senter ved 1\u00d7 (30 Hz), spennvidde \u00b110 Hz, 800 linjer \u2192 oppl\u00f8sning p\u00e5 0,025 Hz.<\/li>\n<li><strong>Girnett:<\/strong> sentrert p\u00e5 GMF (600 Hz), spennvidde \u00b150 Hz, 1600 linjer \u2192 oppl\u00f8sning p\u00e5 0,0625 Hz.<\/li>\n<li><strong>Lagerfeil:<\/strong> centre at <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/bpfo\/\">BPFO<\/a> (150 Hz), spennvidde \u00b125 Hz, 800 linjer \u2192 oppl\u00f8sning p\u00e5 0,0625 Hz.<\/li>\n<\/ul>\n<h2>6. Advantages<\/h2>\n<ul>\n<li><strong>H\u00f8y oppl\u00f8sning:<\/strong> 10\u2013100 ganger mer detaljert enn en standard FFT, noe som gj\u00f8r det mulig \u00e5 skille mellom topper som ellers er umulige \u00e5 skille fra hverandre, og avdekker diagnostiske detaljer.<\/li>\n<li><strong>Beregningsmessig effektivitet:<\/strong> mye billigere enn \u00e5 \u00f8ke antall linjer over hele spekteret \u2013 raskere og med mindre minneforbruk.<\/li>\n<li><strong>N\u00f8yaktig frekvensm\u00e5ling:<\/strong> fastsl\u00e5r den n\u00f8yaktige toppfrekvensen, slik at den kan sammenlignes med en teoretisk beregning, noe som bekrefter eller avkrefter en mistanke om <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/diagnosis\/\">diagnose<\/a>.<\/li>\n<\/ul>\n<h2>7. Limitations<\/h2>\n<ul>\n<li><strong>Kun smalb\u00e5nd:<\/strong> Den viser bare det valgte omr\u00e5det og tar ikke hensyn til noe utenfor dette, s\u00e5 du m\u00e5 allerede ha en grov id\u00e9 om hvor du skal lete \u2013 derav oversikten over standard-FFT f\u00f8rst.<\/li>\n<li><strong>N\u00f8dvendig brukerkunnskap:<\/strong> \u00c5 velge et fornuftig midtpunkt og spenn krever at man forst\u00e5r hva man er ute etter, noe som gj\u00f8r zoom-FFT uegnet til generell screening og mer krevende enn en vanlig FFT.<\/li>\n<li><strong>Tidsbruk:<\/strong> Dette er en tilleggsm\u00e5ling utover standardm\u00e5lingen, og den ekstra innsatsen som kreves for oppsett og valg av parametere er berettiget for kritiske maskiner eller allerede bekreftede problemer, snarere enn ved rutinemessige unders\u00f8kelser.<\/li>\n<\/ul>\n<h2>8. Zoom inn p\u00e5 FFT i felten<\/h2>\n<p>Selv om den mest grundige zooming-analysen ofte er forbeholdt kritiske maskiner med fastmontert m\u00e5leutstyr, er det samme prinsippet uvurderlig ogs\u00e5 for b\u00e6rbar diagnostikk. Etter en rutinemessig <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/feltbalansering\/\">feltbalansering<\/a> unders\u00f8kelse, en tokanalsanalysator som for eksempel <a href=\"https:\/\/vibromera.eu\/nb\/produkt\/balanset-1\/\">Balanset-1A<\/a> gj\u00f8r det mulig for en ingeni\u00f8r \u00e5 utvide et mistenkelig omr\u00e5de av spektrumet \u2013 for eksempel rundt 1\u00d7 kj\u00f8ringshastighet \u2013 for \u00e5 bekrefte om en forh\u00f8yet topp er ren <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/imbalance\/\">ubalanse<\/a> eller en gruppe elektriske sideb\u00e5nd som skjuler seg under den. Dette skillet avgj\u00f8r om l\u00f8sningen er en justering av balansen eller en reparasjon av motoren, og det er derfor det er s\u00e5 nyttig \u00e5 kunne skille mellom topper som ligger tett sammen p\u00e5 stedet.<\/p>\n<p>Kort sagt er Zoom FFT et kraftig spektralverkt\u00f8y som gir den oppl\u00f8sningen som trengs for \u00e5 skille ut de tettliggende komponentene som ligger bak elektriske motorfeil, girfeil og lagerproblemer. \u00c5 vite n\u00e5r man skal ta det i bruk, hvordan man velger senter og spennvidde, og hvordan man tolker det resulterende spektrumet med h\u00f8y oppl\u00f8sning, er kjennetegnet p\u00e5 avansert <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/vibration-analysis\/\">vibrasjonsanalyse<\/a> og detaljert feils\u00f8king av komplekse maskiner.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/nb\/glossary\/\">\u2190 Tilbake til hovedindeksen<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>L\u00e6r om zoom FFT, en spektralanalyseteknikk som gir h\u00f8yfrekvensoppl\u00f8sning i utvalgte smale b\u00e5nd, viktig for \u00e5 l\u00f8se tettliggende topper og sideb\u00e5ndanalyse.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-313","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/glossary\/313","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/glossary\/313\/revisions"}],"predecessor-version":[{"id":101371,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/glossary\/313\/revisions\/101371"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/media?parent=313"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/categories?post=313"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/tags?post=313"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}