{"id":293,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/vane-passing-frequency\/"},"modified":"2026-05-23T22:46:43","modified_gmt":"2026-05-23T22:46:43","slug":"vane-passing-frequency","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/sl\/glossary\/vane-passing-frequency\/","title":{"rendered":"Kaj je frekvenca prehoda lopatic? Diagnostika lopatic \u010drpalke"},"content":{"rendered":"<h1>Razumevanje frekvence prehoda lopatic<\/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\/sl\/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\/sl\/product\/balanset-1\/\" title=\"Prenosni balanser in analizator vibracij 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=\"Prenosni uravnote\u017enik in analizator vibracij Balanset-1A v popolnem kompletu\" 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\/sl\/product-category\/devices\/\" rel=\"tag\">Naprave<\/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\/sl\/product\/balanset-1\/\" title=\"Prenosni balanser in analizator vibracij Balanset-1A\">Prenosni balanser in analizator vibracij 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> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/293?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=\"Dodaj v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/wp-json\/wp\/v2\/glossary\/293?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=\"Dodaj v ko\u0161arico: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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\/sl\/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\/sl\/product\/vibration-sensor\/\" title=\"Senzor vibracij\">\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=\"Senzor vibracij Balanset-1A od blizu\" 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\/sl\/product-category\/parts\/\" rel=\"tag\">Deli<\/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\/sl\/product\/vibration-sensor\/\" title=\"Senzor vibracij\">Senzor vibracij<\/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> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/293?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=\"Dodaj v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/wp-json\/wp\/v2\/glossary\/293?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=\"Dodaj v ko\u0161arico: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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\/sl\/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\/sl\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Opti\u010dni senzor (laserski tahometer)\">\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=\"Opti\u010dni senzor (laserski tahometer)\" 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\/sl\/product-category\/parts\/\" rel=\"tag\">Deli<\/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\/sl\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Opti\u010dni senzor (laserski tahometer)\">Opti\u010dni senzor (laserski tahometer)<\/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> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/293?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=\"Dodaj v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/wp-json\/wp\/v2\/glossary\/293?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=\"Dodaj v ko\u0161arico: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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\/sl\/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\/sl\/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=\"Komplet za uravnote\u017eenje rotorjev Vibromera: torba za prena\u0161anje, ve\u010dkanalni pretvornik signala, ro\u010dni analizator, magnetna podlaga, senzorji vibracij in spiralni kabli.\" 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\/sl\/product-category\/devices\/\" rel=\"tag\">Naprave<\/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\/sl\/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> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/293?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=\"Dodaj v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/wp-json\/wp\/v2\/glossary\/293?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=\"Dodaj v ko\u0161arico: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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\/sl\/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\/sl\/product\/magnet-stand\/\" title=\"Magnetno stojalo 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=\"Magnetna osnova.\" 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\/sl\/product-category\/parts\/\" rel=\"tag\">Deli<\/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\/sl\/product\/magnet-stand\/\" title=\"Magnetno stojalo Insize-60-kgf\">Magnetno stojalo 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> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/293?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" 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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> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/293?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=\"Dodaj v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/wp-json\/wp\/v2\/glossary\/293?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=\"Dodaj v ko\u0161arico: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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\/sl\/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\/sl\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dinami\u010dni uravnote\u017eevalnik &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=\"Vsebina kompleta Balanset-1A z vmesni\u0161ko enoto, senzorji, tahometrom in dodatno opremo\" 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\/sl\/product-category\/devices\/\" rel=\"tag\">Naprave<\/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\/sl\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dinami\u010dni uravnote\u017eevalnik &quot;Balanset-1A&quot; OEM\">Dinami\u010dni uravnote\u017eevalnik \"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> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/293?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=\"Dodaj v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/wp-json\/wp\/v2\/glossary\/293?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=\"Dodaj v ko\u0161arico: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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>Frekvenca prehoda lopatic<\/strong> (VPF \u2013 imenovana tudi frekvenca prehoda lopatic rotorja ali preprosto prehod lopatic) je frekvenca, s katero lopatice vrte\u010dega se rotorja \u010drpalke prehajajo mimo nepremi\u010dne referen\u010dne to\u010dke, kot so jezik spirale, lopatice difuzorja ali drug element ohi\u0161ja. Izra\u010duna se kot \u0161tevilo lopatic rotorja, pomno\u017eeno s frekvenco vrtenja gredi: <strong>VPF = N<sub>v<\/sub> \u00d7 RPM \/ 60<\/strong>. VPF je neposredni \u010drpalni ekvivalent <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/blade-passing-frequency\/\">frekvenca prehoda lopatic<\/a> ki ga opazimo pri ventilatorjih, in je prevladujo\u010da hidravli\u010dna <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/vibration\/\">vibracije<\/a> prevladujo\u010d hidravli\u010dni vir pri centrifugalnih \u010drpalkah, ki se pri industrijskih strojih obi\u010dajno pojavlja v frekven\u010dnem obmo\u010dju med 100 in 500 Hz. Sledenje amplitudi VPF in njenim <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/harmonics\/\">harmoniki<\/a> zagotavlja klju\u010dne diagnosti\u010dne podatke o stanju rotorja, hidravli\u010dni zmogljivosti in notranjih zra\u010dnostih.<\/p>\n<h2>1. Izra\u010dun in tipi\u010dne vrednosti<\/h2>\n<h3>Formula<\/h3>\n<blockquote><p><strong>VPF = N<sub>v<\/sub> \u00d7 N \/ 60<\/strong> &nbsp; kjer N<sub>v<\/sub> = \u0161tevilo lopatic rotorja, N = hitrost gredi v obratih na minuto, rezultat pa je v hercih.<\/p><\/blockquote>\n<p>Ker je VPF vedno celo\u0161tevil\u010dni ve\u010dkratnik <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/running-speed\/\">obratovalna hitrost<\/a> (1\u00d7), se trdno uvr\u0161\u010da med sinhrone komponente spektra \u2013 gre za pravo frekvenco lopatic <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/harmonics\/\">harmoni\u010dno<\/a> odvisna od hitrosti gredi, ne pa samostojna frekvenca.<\/p>\n<h3>Delovni primeri<\/h3>\n<ul>\n<li><strong>Mala \u010drpalka:<\/strong> 5 lopatic pri 3500 vrtljajih na minuto \u2192 VPF = 5 \u00d7 3500 \/ 60 = <strong>292 Hz<\/strong>.<\/li>\n<li><strong>Velika procesna \u010drpalka:<\/strong> 7 lopatic pri 1750 vrtljajih na minuto \u2192 VPF = 7 \u00d7 1750 \/ 60 = <strong>204 Hz<\/strong>.<\/li>\n<li><strong>Visokohitrostna \u010drpalka:<\/strong> 6 lopatic pri 4200 vrtljajih na minuto \u2192 VPF = 6 \u00d7 4200 \/ 60 = <strong>420 Hz<\/strong>.<\/li>\n<\/ul>\n<h3>Tipi\u010dno \u0161tevilo lopatic<\/h3>\n<ul>\n<li><strong>Centrifugalne \u010drpalke:<\/strong> 3\u201312 lopatic, najpogosteje 5\u20137.<\/li>\n<li><strong>Male \u010drpalke:<\/strong> manj lopatic (3\u20135).<\/li>\n<li><strong>Velike \u010drpalke:<\/strong> ve\u010d lopatic (7\u201312).<\/li>\n<li><strong>\u010crpalke z visokim tlakom:<\/strong> ve\u010d lopatic za u\u010dinkovit prenos energije.<\/li>\n<\/ul>\n<p>Poznavanje natan\u010dnega \u0161tevila lopatic je klju\u010dnega pomena, saj je prav to tisto, kar lo\u010di VPF od naklju\u010dne harmonike gredi; \u010de risba rotorja ni na voljo, je \u0161tevilo lopatic pogosto mogo\u010de potrditi s \u0161tetjem harmoniknega reda, pri katerem se pojavi prevladujo\u010di hidravli\u010dni vrh. <a href=\"https:\/\/vibromera.eu\/sl\/calculators\/blade-pass-frequency\/\">Kalkulator frekvence prehodov lopatic<\/a> skrbi za izra\u010dune za \u010drpalke in ventilatorje, ter <a href=\"https:\/\/vibromera.eu\/sl\/calculators\/harmonic-frequency-calculator\/\">Kalkulator harmoni\u010dnih frekvenc<\/a> omogo\u010da umestitev VPF in njegovih ve\u010dkratnikov na frekven\u010dno os.<\/p>\n<h2>2. Fizi\u010dni mehanizem<\/h2>\n<h3>Nihanje tlaka<\/h3>\n<p>VPF nastane zaradi nihanja hidravli\u010dnega tlaka in ne zaradi mehanske sile. Postopek je naslednji:<\/p>\n<ol>\n<li>Vsaka lopatica rotorja potiska teko\u010dino navzven z visoko hitrostjo.<\/li>\n<li>Ko lopatica prehaja mimo jezika spirale, povzro\u010di mo\u010dan tla\u010dni impulz.<\/li>\n<li>V tem trenutku se razlika v tlaku na lopatici hitro spremeni.<\/li>\n<li>To povzro\u010di silni sunek tako na rotorju kot na ohi\u0161ju.<\/li>\n<li>S N<sub>v<\/sub> lopaticami, N<sub>v<\/sub> tak\u0161ni impulzi se pojavljajo pri vsakem obratu.<\/li>\n<li>Frekvenca pulzacije je enaka hitrosti prehoda lopatice \u2013 VPF.<\/li>\n<\/ol>\n<p>Zaradi tega je VPF eden izmed klasi\u010dnih <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/hydraulic-forces\/\">hidravli\u010dne sile<\/a> ki delujejo na \u010drpalko, v nasprotju s povsem mehanskimi vzbujanji, kot so <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/unbalance\/\">neuravnote\u017eenost<\/a> ali okvare le\u017eajev.<\/p>\n<h3>Na to\u010dki optimalnega delovanja (BEP)<\/h3>\n<ul>\n<li>Kot dotoka se ujema s kotom lopatice.<\/li>\n<li>Pretok je enakomeren, z minimalnimi motnjami.<\/li>\n<li>Amplituda VPF je zmerna in stabilna.<\/li>\n<li>Porazdelitev tlaka okoli ohi\u0161ja je skoraj optimalna.<\/li>\n<\/ul>\n<h3>Izven projektne to\u010dke<\/h3>\n<ul>\n<li>Kot pretoka se ne ujema ve\u010d s kotom lopatice.<\/li>\n<li>Turbulenca in lo\u010devanje toka se pove\u010data.<\/li>\n<li>Nihanja tlaka postajajo mo\u010dnej\u0161a.<\/li>\n<li>Amplituda VPF se pove\u010da, pogosto skupaj z dodatnimi frekven\u010dnimi komponentami.<\/li>\n<\/ul>\n<h2>3. Interpretacija diagnosti\u010dnih rezultatov<\/h2>\n<h3>Normalna amplituda VPF<\/h3>\n<ul>\n<li>\u010crpalka deluje na to\u010dki najve\u010djega izkoristka (BEP) ali v njeni bli\u017eini.<\/li>\n<li>Amplituda VPF ostaja stabilna pri zaporednih meritvah.<\/li>\n<li>Obi\u010dajno 10\u201330 % amplitude vibracije 1\u00d7.<\/li>\n<li>\u010cist spekter z minimalno vsebnostjo harmonikov.<\/li>\n<\/ul>\n<h3>Kaj vam pove povi\u0161ana vrednost VPF<\/h3>\n<p><strong>Delovanje izven to\u010dke BEP.<\/strong> Delovanje pri nizkem pretoku (pod ~70 % BEP) pove\u010da VPF, enako kot delovanje pri visokem pretoku (nad ~120 % BEP); optimalno obmo\u010dje je pribli\u017eno 80\u2013110 % BEP. Dalj\u0161e delovanje pri nizkem pretoku je povezano tudi z <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/recirculation\/\">notranja recirkulacija<\/a>.<\/p>\n<p><strong>Te\u017eave z zra\u010dnostjo med rotorjem in ohi\u0161jem.<\/strong> Obrabljeni obrabni obro\u010di ali rotor, premaknjen zaradi <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/bearing-wear\/\">obraba le\u017eaja<\/a>, pove\u010dajo delovno zra\u010dnost; amplituda VPF nara\u0161\u010da z ve\u010danjem zra\u010dnosti, skupaj z izgubo zmogljivosti zaradi notranjega pu\u0161\u010danja.<\/p>\n<p><strong>Po\u0161kodba rotorja.<\/strong> Zlomljena ali razpokana lopatka povzro\u010da asimetrijo, kar ima za posledico VPF z <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/sidebands\/\">stranski pasovi<\/a> pri hitrosti \u00b11\u00d7; erozija, nabiranje snovi na lopaticah ali po\u0161kodbe zaradi tujkov delujejo podobno. To so tipi\u010dni primeri \u0161ir\u0161ih <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/impeller-defects\/\">napake pri delovanju rotorja<\/a>.<\/p>\n<p><strong>Hidravli\u010dna resonanca.<\/strong> \u010ce se VPF slu\u010dajno ujame z akusti\u010dnim <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/resonance\/\">resonanca<\/a> v cevovodu ali ohi\u0161ju se amplituda mo\u010dno pove\u010da, kar v\u010dasih povzro\u010di mo\u010dne strukturne vibracije in hrup, zaradi \u010desar so potrebne spremembe sistema.<\/p>\n<h2>4. Harmoniki in subharmoniki VPF<\/h2>\n<h3>2\u00d7VPF in ve\u010d<\/h3>\n<p>Ve\u010dkratni harmoniki frekvence prehoda lopatice so opozorilni znak:<\/p>\n<ul>\n<li><strong>2\u00d7VPF prisoten:<\/strong> nakazuje neenakomeren razmik med lopaticami ali ekscentri\u010dnost rotorja.<\/li>\n<li><strong>Ve\u010dkratni harmoniki:<\/strong> ka\u017eejo na hudo hidravli\u010dno turbulenco ali po\u0161kodbo lopatice.<\/li>\n<li><strong>Prevelike amplitude:<\/strong> pove\u010dati tveganje za <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/fatigue\/\">utrujenost<\/a> okvare lopatic in ohi\u0161ja.<\/li>\n<\/ul>\n<h3>Subharmoniki<\/h3>\n<ul>\n<li>Delni ve\u010dkratniki, kot sta VPF\/2 ali VPF\/3.<\/li>\n<li>Ka\u017eejo na nestabilnosti toka, vklju\u010dno z rotacijskim zastojem in celicami lo\u010devanja.<\/li>\n<li>Najpogosteje se pojavijo pri zelo majhnih pretokih in so podobni drugim <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/subharmonic\/\">subharmoni\u010dni<\/a> pojav.<\/li>\n<\/ul>\n<h2>5. Spremljanje in trendi<\/h2>\n<h3>Vzpostavitev izhodi\u0161\u010dnega stanja<\/h3>\n<ul>\n<li>Zapi\u0161ite vrednost VPF, ko je \u010drpalka nova ali sve\u017ee obnovljena.<\/li>\n<li>To zabele\u017eite pri projektni delovni to\u010dki.<\/li>\n<li>Dolo\u010dite normalno razmerje med amplitudo VPF in 1\u00d7.<\/li>\n<li>Nastavite mejne vrednosti alarma, obi\u010dajno 2\u20133-kratno vrednost osnovne amplitude VPF.<\/li>\n<\/ul>\n<h3>Trendovske spremenljivke<\/h3>\n<ul>\n<li><strong>Amplituda VPF:<\/strong> spremljati v dalj\u0161em \u010dasovnem obdobju; postopno nara\u0161\u010danje ka\u017ee na nastajajo\u010d problem.<\/li>\n<li><strong>Razmerje VPF\/1\u00d7:<\/strong> bi morala ostati razmeroma nespremenjena.<\/li>\n<li><strong>Harmoni\u010dna vsebina:<\/strong> pojav ali rast 2\u00d7VPF in 3\u00d7VPF.<\/li>\n<li><strong>Razvoj stranskega pasu:<\/strong> pojav stranskih pasov z odstopanjem \u00b11\u00d7 okoli VPF.<\/li>\n<\/ul>\n<h3>V skladu z delovnimi pogoji<\/h3>\n<ul>\n<li>Nari\u0161ite krivuljo VPF glede na pretok.<\/li>\n<li>Dolo\u010dite obmo\u010dje delovanja z najni\u017ejo vrednostjo VPF.<\/li>\n<li>Zaznaj, kdaj se je delovna to\u010dka premaknila.<\/li>\n<li>Pove\u017eite delovanje VPF z izmerjenim poslab\u0161anjem zmogljivosti.<\/li>\n<\/ul>\n<p>Tovrstna <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/trend-analysis\/\">in spremljanje trendov<\/a> je odvisno od doslednih, ponovljivih spekterjev. Prenosni dvo-kanalni analizator, kot je <a href=\"https:\/\/vibromera.eu\/sl\/izdelek\/balanset-1\/\">Balanset-1A<\/a> zajame <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/spectrum\/\">Spekter FFT<\/a> pri \u010demer je VPF jasno razlo\u010den v hidravli\u010dnem obmo\u010dju 100\u2013500 Hz, tako da lahko serviser pri vsakem obisku potrdi vrh frekvence prehoda lopatic, spremlja njegovo amplitudo in stranske pasove ter izklju\u010di mehanske <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/unbalance\/\">neuravnote\u017eenost<\/a> vzroke, \u0161e preden odpre \u010drpalko.<\/p>\n<h2>6. Popravni ukrepi<\/h2>\n<h3>Optimizacija delovne to\u010dke<\/h3>\n<ul>\n<li>Prilagodite pretok tako, da se \u010drpalka pribli\u017ea to\u010dki najbolj\u0161e u\u010dinkovitosti (BEP).<\/li>\n<li>Zmanj\u0161ajte pretok ali spremenite upornost sistema.<\/li>\n<li>Preverite, ali so pogoji za sesanje ustrezni.<\/li>\n<\/ul>\n<h3>Mehanski popravek<\/h3>\n<ul>\n<li>Zamenjajte obrabljene obro\u010de, da ponovno vzpostavite predvidene vmesne razdalje.<\/li>\n<li>Zamenjajte obrabljeno ali po\u0161kodovano krilno kolo.<\/li>\n<li>Odpravite te\u017eave z le\u017eaji, zaradi katerih se lahko premika rotor.<\/li>\n<li>Preverite pravilen polo\u017eaj rotorja, tako v osni kot v radialni smeri.<\/li>\n<\/ul>\n<h3>Izbolj\u0161ave hidravli\u010dnega sistema<\/h3>\n<ul>\n<li>Izbolj\u0161ajte dovodno cevovodno napeljavo, da zmanj\u0161ate predhodno vrtin\u010denje in turbulenco.<\/li>\n<li>Po potrebi namestite usmerjevalce pretoka.<\/li>\n<li>Preverite, ali je rezerva NPSH zadostna, da se izognete <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/cavitation\/\">kavitacija<\/a>.<\/li>\n<li>Prepre\u010dite vme\u0161avanje zraka.<\/li>\n<\/ul>\n<h2>7. Povezava z drugimi frekvencami<\/h2>\n<h3>VPF proti BPF<\/h3>\n<ul>\n<li>Ti izrazi se pogosto uporabljajo kot sinonimi tako za \u010drpalke kot za ventilatorje.<\/li>\n<li><strong>VPF:<\/strong> prednostni izraz za \u010drpalke (lopatice, ki premikajo teko\u010dino).<\/li>\n<li><strong>BPF:<\/strong> izraz, ki ga najraje uporabljajo pri ventilatorjih (lopatice, ki premikajo zrak).<\/li>\n<li>Izra\u010dun in diagnosti\u010dni pristop sta enaka.<\/li>\n<\/ul>\n<h3>VPF v primerjavi s hitrostjo teka<\/h3>\n<ul>\n<li>VPF = N<sub>v<\/sub> \u00d7 (frekvenca tekalne hitrosti).<\/li>\n<li>VPF ima vedno vi\u0161jo frekvenco kot 1\u00d7.<\/li>\n<li>Pri 7-lopatnem rotorju na primer vrednost VPF zna\u0161a natanko 7-kratno delovno hitrost.<\/li>\n<\/ul>\n<p>Frekvenca prehoda lopatic je temeljna hidravli\u010dna vibracijska komponenta vsake centrifugalne \u010drpalke. Obvladovanje njenega izra\u010duna, prepoznavanje normalnih in pove\u010danih amplitud ter povezovanje njenih vzorcev z obratovalnimi pogoji in stanjem \u010drpalke spremeni posamezen spektralni vrh v mo\u010dno diagnosti\u010dno orodje, ki omogo\u010da sprejemanje utemeljenih odlo\u010ditev glede optimizacije delovne to\u010dke, ponovne vzpostavitve vmesnika in zamenjave rotorja. To je temelj \u0161ir\u0161ega <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/pump-defects\/\">diagnostike okvar \u010drpalk<\/a>.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/sl\/glossary\/\">\u2190 Nazaj na glavno kazalo<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Spoznajte frekvenco prehoda lopatic (VPF), hitrost, s katero lopatice rotorja \u010drpalke prehajajo mimo stacionarnega difuzorja ali spiralne vode, kar je bistveno za diagnosticiranje hidravli\u010dnih in mehanskih te\u017eav.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-293","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/glossary\/293","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/glossary\/293\/revisions"}],"predecessor-version":[{"id":101369,"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/glossary\/293\/revisions\/101369"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/media?parent=293"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/categories?post=293"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/tags?post=293"}],"curies":[{"name":"delovni list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}