{"id":311,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/windowing\/"},"modified":"2026-05-23T22:40:35","modified_gmt":"2026-05-23T22:40:35","slug":"windowing","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/lt\/glossary\/windowing\/","title":{"rendered":"Kas yra lang\u0173 metodas FFT analiz\u0117je?"},"content":{"rendered":"<h1>Lango funkcijos supratimas FFT analizeje<\/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\/lt\/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\/lt\/product\/balanset-1\/\" title=\"Ne\u0161iojamas balansavimo \u012frenginys ir vibracijos analizatorius 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 pilno komplekto ne\u0161iojamas balansavimo \u012frenginys ir vibracijos analizatorius\" 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\/lt\/product-category\/devices\/\" rel=\"tag\">\u012erenginiai<\/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\/lt\/product\/balanset-1\/\" title=\"Ne\u0161iojamas balansavimo \u012frenginys ir vibracijos analizatorius Balanset-1A\">Ne\u0161iojamas balansavimo \u012frenginys ir vibracijos analizatorius 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> + PVM (jei taikoma)<\/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=\"\/lt\/wp-json\/wp\/v2\/glossary\/311?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=\"\u012e krep\u0161el\u012f\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"\u012e krep\u0161el\u012f\" 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=\"\/lt\/wp-json\/wp\/v2\/glossary\/311?add-to-cart=986\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_986\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"986\" data-product_sku=\"BS-1\" aria-label=\"Add to cart: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">\u012e krep\u0161el\u012f<\/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\/lt\/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\/lt\/product\/vibration-sensor\/\" title=\"Vibracijos jutiklis\">\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=\"&quot;Balanset-1A&quot; vibracijos jutiklis stambiu planu\" 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\/lt\/product-category\/parts\/\" rel=\"tag\">Dalys<\/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\/lt\/product\/vibration-sensor\/\" title=\"Vibracijos jutiklis\">Vibracijos jutiklis<\/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> + PVM (jei taikoma)<\/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=\"\/lt\/wp-json\/wp\/v2\/glossary\/311?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=\"\u012e krep\u0161el\u012f\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"\u012e krep\u0161el\u012f\" 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=\"\/lt\/wp-json\/wp\/v2\/glossary\/311?add-to-cart=1820\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1820\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1820\" data-product_sku=\"VS-1\" aria-label=\"Add to cart: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">\u012e krep\u0161el\u012f<\/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\/lt\/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\/lt\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optinis jutiklis (lazerinis tachometras)\">\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=\"Optinis jutiklis (lazerinis tachometras)\" 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\/lt\/product-category\/parts\/\" rel=\"tag\">Dalys<\/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\/lt\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optinis jutiklis (lazerinis tachometras)\">Optinis jutiklis (lazerinis tachometras)<\/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> + PVM (jei taikoma)<\/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=\"\/lt\/wp-json\/wp\/v2\/glossary\/311?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=\"\u012e krep\u0161el\u012f\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"\u012e krep\u0161el\u012f\" 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=\"\/lt\/wp-json\/wp\/v2\/glossary\/311?add-to-cart=1832\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1832\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" aria-label=\"Add to cart: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">\u012e krep\u0161el\u012f<\/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\/lt\/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\/lt\/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 rotoriaus balansavimo rinkinys: ne\u0161iojimo d\u0117klas, daugiakanalis signalo kondicionierius, rankinis analizatorius, magnetinis pagrindas, vibracijos jutikliai ir susukti kabeliai.\" 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\/lt\/product-category\/devices\/\" rel=\"tag\">\u012erenginiai<\/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\/lt\/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> + PVM (jei taikoma)<\/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=\"\/lt\/wp-json\/wp\/v2\/glossary\/311?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=\"\u012e krep\u0161el\u012f\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"\u012e krep\u0161el\u012f\" 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=\"\/lt\/wp-json\/wp\/v2\/glossary\/311?add-to-cart=1833\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1833\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1833\" data-product_sku=\"BS-4\" aria-label=\"Add to cart: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">\u012e krep\u0161el\u012f<\/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\/lt\/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\/lt\/product\/magnet-stand\/\" title=\"Magnetinis stovas 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=\"Magneto pagrindas.\" 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\/lt\/product-category\/parts\/\" rel=\"tag\">Dalys<\/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\/lt\/product\/magnet-stand\/\" title=\"Magnetinis stovas Insize-60-kgf\">Magnetinis stovas 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> + PVM (jei taikoma)<\/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=\"\/lt\/wp-json\/wp\/v2\/glossary\/311?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=\"\u012e krep\u0161el\u012f\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"\u012e krep\u0161el\u012f\" 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=\"\/lt\/wp-json\/wp\/v2\/glossary\/311?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=\"Add to cart: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">\u012e krep\u0161el\u012f<\/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\/lt\/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\/lt\/product\/reflective-tape\/\" title=\"Atspindinti juosta\">\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=\"Atspindinti juosta\" 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\/lt\/product-category\/parts\/\" rel=\"tag\">Dalys<\/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\/lt\/product\/reflective-tape\/\" title=\"Atspindinti juosta\">Atspindinti juosta<\/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> + PVM (jei taikoma)<\/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=\"\/lt\/wp-json\/wp\/v2\/glossary\/311?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=\"\u012e krep\u0161el\u012f\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"\u012e krep\u0161el\u012f\" 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=\"\/lt\/wp-json\/wp\/v2\/glossary\/311?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=\"Add to cart: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">\u012e krep\u0161el\u012f<\/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\/lt\/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\/lt\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dinaminis balansavimo \u012frenginys &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=\"&quot;Balanset-1A&quot; rinkinio turinys su s\u0105sajos bloku, jutikliais, tachometru ir priedais\" 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\/lt\/product-category\/devices\/\" rel=\"tag\">\u012erenginiai<\/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\/lt\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dinaminis balansavimo \u012frenginys &quot;Balanset-1A&quot; OEM\">Dinaminis balansavimo \u012frenginys \"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> + PVM (jei taikoma)<\/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=\"\/lt\/wp-json\/wp\/v2\/glossary\/311?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=\"\u012e krep\u0161el\u012f\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"\u012e krep\u0161el\u012f\" 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=\"\/lt\/wp-json\/wp\/v2\/glossary\/311?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=\"Add to cart: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">\u012e krep\u0161el\u012f<\/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>Langavimas<\/strong> yra signal\u0173 apdorojimo etapas, kurio metu matematin\u0117 svorio funkcija \u2013 \u201elangas\u201c \u2013 taikoma duomen\u0173 blokui <a href=\"https:\/\/vibromera.eu\/lt\/glossary\/time-waveform\/\">laiko bangos forma<\/a> duomenis prie\u0161 perduodant juos greitajai Furj\u0117 transformacijai. Lango forma u\u017efiksuoto signalo amplitud\u0119 laipsni\u0161kai ma\u017eina iki nulio laiko bloko prad\u017eioje ir pabaigoje, tod\u0117l duomenys sujungiami be staigi\u0173 \u0161uoli\u0173. B\u016btent \u0161i viena operacija pa\u0161alina da\u017enai pasitaikan\u010di\u0105 paklaid\u0105, vadinam\u0105 <a href=\"https:\/\/vibromera.eu\/lt\/glossary\/spectral-leakage\/\">spektrinis nuot\u0117kis<\/a> tod\u0117l tai yra b\u016btina norint gauti tiksl\u0173 <a href=\"https:\/\/vibromera.eu\/lt\/glossary\/spectrum\/\">vibracijos spektras<\/a>. Prakti\u0161kai <a href=\"https:\/\/vibromera.eu\/lt\/glossary\/vibration-analysis\/\">vibracijos analiz\u0117<\/a>... teisingas filtro pasirinkimas ir naudojimas lemia skirtum\u0105 tarp ai\u0161kaus, patikimo spektro ir i\u0161blukusio, klaidinan\u010dio vaizdo.<\/p>\n<h2>1. Apibr\u0117\u017eimas: kas yra lang\u0173 funkcija?<\/h2>\n<p>Langavimo funkcija \u2013 tai profilis, t. y. daugikli\u0173 rinkinys (po vien\u0105 kiekvienam matavimo ta\u0161kui), kuris u\u017ededamas ant neapdoroto laiko bloko. Ten, kur lango vert\u0117 lygi 1,0, matavimo ta\u0161kas lieka nepakit\u0119s; ten, kur ji art\u0117ja prie 0,0, matavimo ta\u0161kas susilpn\u0117ja. Kadangi beveik kiekvienas langas pasiekia maksimum\u0105 viduryje ir abiejuose galuose palaipsniui ma\u017e\u0117ja, padauginus laiko \u012fra\u0161\u0105 i\u0161 lango, u\u017efiksuotas fragmentas priverstinai prasideda ir baigiasi nulin\u0117s amplitud\u0117s ta\u0161ke. FFT matematiniai pagrindai <a href=\"https:\/\/vibromera.eu\/lt\/glossary\/fft\/\">FFT<\/a> lieka nepakit\u0119; lang\u0173 metodas tiesiog parengia duomenis taip, kad b\u016bt\u0173 patenkintos transformacijos \u012fdiegtos prielaidos. Be to, analizatoriaus pateikiamas spektras gali b\u016bti kiekybi\u0161kai neteisingas net ir tuomet, kai jutiklis bei likusi matavimo grandin\u0117 veikia nepriekai\u0161tingai.<\/p>\n<h2>2. Problema: spektrinis nuot\u0117kis<\/h2>\n<p>FFT grind\u017eiama tam tikra prielaida: ji analizuojam\u0105 ribot\u0105 laiko duomen\u0173 blok\u0105 traktuoja kaip <em>vienas pilnas visi\u0161kai periodinio signalo ciklas, kuris kartojasi be galo<\/em>. Tikr\u0173j\u0173 mechanizm\u0173 signalai beveik niekada n\u0117ra nuosekl\u016bs. Kai \u012fra\u0161ymas prasideda ir baigiasi bet kuriuo momentu, \u012fra\u0161yto bloko pabaiga nesutampa su jo prad\u017eia, tod\u0117l, kai FFT mentaliai sujungia bloko gal\u0105 su jo prad\u017eia, ribose pastebi staigius, dirbtinius pertr\u016bkius.<\/p>\n<p>Transformacija \u0161iuos staigius \u0161uolius traktuoja kaip tikr\u0105 auk\u0161to da\u017enio signal\u0105, kurio aparate i\u0161 tikr\u0173j\u0173 n\u0117ra. Energija, kuri i\u0161 ties\u0173 priklauso vienam atskirai <a href=\"https:\/\/vibromera.eu\/lt\/glossary\/frequency\/\">da\u017enis<\/a> signalo pikas i\u0161silieja \u2013 jis \u201epersilieja\u201c \u2013 \u012f gretimus da\u017eni\u0173 intervalus abiejose pus\u0117se. Tai turi tris pasekmes:<\/p>\n<ul>\n<li><strong>Suma\u017e\u0117j\u0119s amplitud\u0117s tikslumas:<\/strong> i\u0161matuotas piko auk\u0161tis yra ma\u017eesnis u\u017e tikr\u0105j\u0105 vert\u0119, nes jo energija pasiskirst\u0117 po daugel\u012f interval\u0173, o ne susitelk\u0117 viename.<\/li>\n<li><strong>I\u0161sipl\u0117tusios vir\u0161\u016bn\u0117s:<\/strong> linija atrodo platesn\u0117 ir ne tokia ai\u0161kiai apibr\u0117\u017eta, kaip to reikalauja pagrindiniai fizikos d\u0117sniai, tod\u0117l da\u017enio \u012fvertinimas tampa neai\u0161kus.<\/li>\n<li><strong>Skiriamosios gebos suma\u017e\u0117jimas:<\/strong> i\u0161siskleidusi energija pakelia fonin\u012f triuk\u0161m\u0105 aplink didel\u012f smail\u0119, u\u017ego\u017edama ma\u017eesnes gretimas smailes \u2014 b\u016btent tas ma\u017eas <a href=\"https:\/\/vibromera.eu\/lt\/glossary\/harmonics\/\">harmonikos<\/a> ir \u0161onines juostas, kurios da\u017enai suteikia informacijos apie diagnoz\u0119.<\/li>\n<\/ul>\n<h2>3. Sprendimas: lango \u012fdiegimas<\/h2>\n<p>Lang\u0173 metodas pa\u0161alina signal\u0173 nuot\u0117k\u012f, skland\u017eiai nukreipdamas signal\u0105 \u012f <em>look<\/em> periodinis bloko ribose. Padauginus neapdorot\u0105 signalo form\u0105 i\u0161 lango, amplitud\u0117s pa\u010diose prad\u017eioje ir pabaigoje suma\u017einamos iki nulio, o tai pa\u0161alina ribinius netolydumus ir, i\u0161 esm\u0117s, \u201eapgauna\u201c FFT, kad ji matyt\u0173 i\u0161tisin\u012f signal\u0105 be pertrauk\u0173. Rezultatas \u2013 \u017eymiai \u0161varesnis spektras:<\/p>\n<ul>\n<li>Amplitud\u0117s matavimo tikslumas \u017eymiai pager\u0117jo, tod\u0117l galima pasitik\u0117ti gautais smaili\u0173 auk\u0161\u010diais <a href=\"https:\/\/vibromera.eu\/lt\/glossary\/vibration-severity\/\">vibracijos intensyvumas<\/a> limits.<\/li>\n<li>Ai\u0161kesni, ry\u0161kesni da\u017enio smail\u0117s, leid\u017eian\u010dios nustatyti gedim\u0105 pagal konkret\u0173 eil\u0117s numer\u012f ar komponent\u0105.<\/li>\n<li>Ma\u017eesnis faktinis triuk\u0161mo lygis, leid\u017eiantis silpniems signalams i\u0161siskirti tarp stipri\u0173.<\/li>\n<\/ul>\n<p>Nei\u0161vengiamai tenka rinktis kompromis\u0105. Siaurinant pabaigas prarandama dalis \u012fra\u0161o energijos ir \u0161iek tiek i\u0161siple\u010dia pagrindinis spektro pikas, taigi lang\u0173 metodas leid\u017eia \u0161iek tiek suma\u017einti da\u017eni\u0173 skiriam\u0105j\u0105 geb\u0105 mainais \u012f \u017eymiai ma\u017eesn\u012f nuot\u0117k\u012f. Kiekvienas langas yra skirtingas ta\u0161ko \u0161io kompromiso skal\u0117je, tod\u0117l ir egzistuoja keletas skirting\u0173 form\u0173.<\/p>\n<h2>4. Da\u017eniausiai pasitaikantys lang\u0173 tipai<\/h2>\n<p>Sukurta de\u0161imtys lang\u0173 formavimo funkcij\u0173, kurios kiekviena \u0161iek tiek skirtingai \u012fvertina laiko interval\u0105. Atliekant \u012fprastus mechaninius darbus, dominuoja viena i\u0161 j\u0173.<\/p>\n<h3>Hanningo langas<\/h3>\n<p>Svetain\u0117 <a href=\"https:\/\/vibromera.eu\/lt\/glossary\/hanning-window\/\">Hanningo langas<\/a> (pakilusio kosinuso forma) u\u017etikrina puik\u0173 kompromis\u0105 tarp da\u017enio skiriamosios gebos ir amplitud\u0117s tikslumo, tod\u0117l ji yra rekomenduojama kaip numatytoji beveik visiems standartiniams besisukan\u010di\u0173 ma\u0161in\u0173 vibracijos matavimams. Jei n\u0117ra konkre\u010dios prie\u017easties rinktis kitaip, visada reik\u0117t\u0173 pasirinkti Hanningo lang\u0105. Tai tinkamas pasirinkimas nuolatin\u0117ms, pla\u010diai periodin\u0117ms signalams, kurie dominuoja <a href=\"https:\/\/vibromera.eu\/lt\/glossary\/condition-monitoring\/\">b\u016bkl\u0117s steb\u0117jimas<\/a>.<\/p>\n<h3>Kiti langai<\/h3>\n<ul>\n<li><strong>Sta\u010diakampis langas (dar vadinamas \u201eUniform\u201c arba \u201eNone\u201c):<\/strong> tai prilygsta visi\u0161kai nenaudojant lango. \u0160is metodas pasi\u017eymi geriausia da\u017enio skiriam\u0105ja geba, ta\u010diau blogiausiu spektriniu nuot\u0117kiu, tod\u0117l tinka tik tuomet, kai \u017einoma, kad signalas bloke yra visi\u0161kai periodi\u0161kas, arba fiksuojant labai staigius, visi\u0161kai izoliuotus trumpalaikius \u012fvykius, pavyzd\u017eiui, sm\u016bg\u012f.<\/li>\n<li><strong>Plok\u0161\u010diavir\u0161\u016bnis langas:<\/strong> u\u017etikrina tiksliausi\u0105 amplitud\u0117s matavim\u0105 i\u0161 vis\u0173 \u012fprast\u0173 lang\u0173, ta\u010diau d\u0117l to labai nuken\u010dia da\u017enio skiriamoji geba (labai pla\u010dios amplitud\u0117s smail\u0117s). Tai yra tinkamiausias langas kalibravimo darbams ir bet kokioms u\u017eduotims, kur reikalingas tikslus <a href=\"https:\/\/vibromera.eu\/lt\/glossary\/amplitude\/\">amplitud\u0117<\/a> svarbu ne tiek tikslus signalo da\u017enis, kiek jo amplitud\u0117 \u2014 pavyzd\u017eiui, jutiklio tikrinimas pagal <a href=\"https:\/\/vibromera.eu\/lt\/glossary\/calibration-certificate\/\">kalibravimo sertifikatas<\/a> naudojant \u017einom\u0105 etalonin\u012f vibratori\u0173.<\/li>\n<li><strong>Hamingo langas:<\/strong> glaud\u017eiai susij\u0119s su Hanningo langu, ta\u010diau \u0161iek tiek skiriasi \u0161onini\u0173 spinduli\u0173 elgsena; \u012fprastin\u0117je ma\u0161in\u0173 diagnostikoje naudojamas retai.<\/li>\n<\/ul>\n<h2>5. Kada naudoti lang\u0105 \u2014 ir kaip jis s\u0105veikauja su skiriam\u0105ja geba<\/h2>\n<p>Ma\u0161in\u0173 b\u016bkl\u0117s steb\u0117jimui taikoma taisykl\u0117 yra paprasta: <strong>visada naudokite Hanning lang\u0105<\/strong> bendrajai spektrinei analizei. I\u0161jungus lang\u0105 \u2013 pasirinkus \u201eSta\u010diakampis\u201c (Rectangular) analizuojant \u012fprast\u0105 signal\u0105 \u2013 gaunami netiksl\u016bs ir galimai klaidinantys duomenys, nes nuot\u0117kis i\u0161kreips tiek smaili\u0173 auk\u0161\u010dius, tiek matom\u0105 triuk\u0161mo fon\u0105. \u0160iuolaikiniai prietaisai pagal numatytuosius nustatymus taiko Hanningo lang\u0105 b\u016btent tod\u0117l, kad jis yra b\u016btinas norint gauti patikim\u0105 ir tiksl\u0173 spektr\u0105.<\/p>\n<p>Lang\u0173 taikymas neveikia izoliuotai. Kadangi spektrin\u0117s linijos susiaur\u0117jimas i\u0161ple\u010dia kiekvien\u0105 spektrin\u0119 linij\u0105, praktin\u0117 da\u017eni\u0173 skiriamoji geba priklauso nuo lango pasirinkimo ir analiz\u0117s parametr\u0173 \u2013 bloko ilgio (m\u0117gini\u0173 skai\u010diaus), diskretizacijos da\u017enio ir intervalo \u2013 bendro poveikio. Kai smail\u0117s yra labai arti viena kitos, \u012fra\u0161o trukm\u0117s pailginimas jas i\u0161ry\u0161kina grei\u010diau nei lango keitimas; \u0161\u012f kompromis\u0105 galima \u012fvertinti naudojant <a href=\"https:\/\/vibromera.eu\/lt\/calculators\/fft-resolution-calculator\/\">FFT skiriamosios gebos skai\u010diuokl\u0117<\/a> prie\u0161 nusprend\u017eiant d\u0117l matavimo konfig\u016bracijos. Lang\u0173 metodas taip pat skiriasi nuo ir papildo <a href=\"https:\/\/vibromera.eu\/lt\/glossary\/signal-filtering\/\">signalo filtravimas<\/a>: filtras pa\u0161alina i\u0161 signalo nepageidaujamus da\u017eni\u0173 diapazonus, o langas apdoroja likus\u012f diapazon\u0105 taip, kad FFT gal\u0117t\u0173 j\u012f tiksliai atvaizduoti.<\/p>\n<h2>6. Lang\u0173 atvaizdavimas lauke<\/h2>\n<p>Atliekant praktin\u0119 diagnostik\u0105, analitikas retai kada s\u0105moningai galvoja apie lang\u0105 \u2013 ir tai yra numatyta. Kai in\u017einierius fiksuoja spektr\u0105 arba atlieka balansavimo darb\u0105 naudodamas ne\u0161iojam\u0105 dviej\u0173 kanal\u0173 prietais\u0105, pavyzd\u017eiui, <a href=\"https:\/\/vibromera.eu\/lt\/produktas\/balansavimas-1\/\">Balanset-1A<\/a>, programa prie\u0161 atliekant FFT skai\u010diavimus automati\u0161kai taiko Hanningo lang\u0105, taigi 1\u00d7 <a href=\"https:\/\/vibromera.eu\/lt\/glossary\/running-speed\/\">b\u0117gimo greitis<\/a> piko ir jo harmonik\u0173 amplitud\u0117 bei da\u017enis atitinka tikruosius dyd\u017eius be joki\u0173 papildom\u0173 veiksm\u0173. B\u016btent \u0161is tinkamai apdorotas spektras leid\u017eia tam pa\u010diam prietaisui atskirti tikr\u0105j\u012f <a href=\"https:\/\/vibromera.eu\/lt\/glossary\/unbalance\/\">disbalansas<\/a> pa\u0161alinti netoliese esan\u010dio triuk\u0161mo smailes ir patikrinti rezultat\u0105 po koregavimo. Supratimas, kaip i\u0161 tikr\u0173j\u0173 veikia langas, padeda analitikui \u012fvertinti, kada tikrai verta rinktis ne standartin\u012f variant\u0105 \u2013 \u201eFlattop\u201c kalibravimo patikrai arba \u201eRectangular\u201c \u0161variam pereinamajam procesui.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/lt\/glossary\/\">\u2190 Atgal \u012f pagrindin\u0119 rodykl\u0119<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Lang\u0173 funkcij\u0173 (pvz., Haningo) FFT analiz\u0117je vadovas. Su\u017einokite, kod\u0117l lang\u0173 funkcijos yra b\u016btinos norint suma\u017einti spektrin\u012f nuot\u0117k\u012f ir u\u017etikrinti tikslius vibracijos matavimus.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-311","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/lt\/wp-json\/wp\/v2\/glossary\/311","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/lt\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/lt\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/lt\/wp-json\/wp\/v2\/glossary\/311\/revisions"}],"predecessor-version":[{"id":101322,"href":"https:\/\/vibromera.eu\/lt\/wp-json\/wp\/v2\/glossary\/311\/revisions\/101322"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/lt\/wp-json\/wp\/v2\/media?parent=311"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/lt\/wp-json\/wp\/v2\/categories?post=311"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/lt\/wp-json\/wp\/v2\/tags?post=311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}