{"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\/cs\/glossary\/vane-passing-frequency\/","title":{"rendered":"Co je frekvence pr\u016fchodu lopatek? Diagnostika lopatek \u010derpadla"},"content":{"rendered":"<h1>Pochopen\u00ed frekvence pr\u016fchodu lopatek<\/h1>\n\t\t<section class=\"woocommerce hestia-shop products is-shortcode\" id=\"products\" data-sorder=\"hestia_shop\" >\n\t\t\t\t\t\t<div class=\"\">\n\t\t\t\t\t\t<div class=\"hestia-shop-content\">\n\t\t\t<div class=\"row\" data-aos=\"fade-up\" >\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/balanset-1\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/balanset-1\/\" title=\"P\u0159enosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibrac\u00ed Balanset-1A\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Kompletn\u00ed sada p\u0159enosn\u00e9ho vyva\u017eova\u010de a analyz\u00e1toru vibrac\u00ed Balanset-1A\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/cs\/product-category\/devices\/\" rel=\"tag\">Za\u0159\u00edzen\u00ed<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/cs\/product\/balanset-1\/\" title=\"P\u0159enosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibrac\u00ed Balanset-1A\">P\u0159enosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibrac\u00ed Balanset-1A<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,975.00<\/span> + DPH (pokud se uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/cs\/wp-json\/wp\/v2\/glossary\/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=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/cs\/wp-json\/wp\/v2\/glossary\/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=\"P\u0159idat do ko\u0161\u00edku: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_986\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/vibration-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/vibration-sensor\/\" title=\"Sn\u00edma\u010d vibrac\u00ed\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Sn\u00edma\u010d vibrac\u00ed Balanset-1A zbl\u00edzka\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/cs\/product-category\/parts\/\" rel=\"tag\">D\u00edly<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/cs\/product\/vibration-sensor\/\" title=\"Sn\u00edma\u010d vibrac\u00ed\">Sn\u00edma\u010d vibrac\u00ed<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>90.00<\/span> + DPH (pokud se uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/cs\/wp-json\/wp\/v2\/glossary\/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=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/cs\/wp-json\/wp\/v2\/glossary\/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=\"P\u0159idat do ko\u0161\u00edku: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1820\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/optical-sensor-for-balanset-and-arbalance\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optick\u00fd senzor (laserov\u00fd ot\u00e1\u010dkom\u011br)\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Optick\u00fd senzor (laserov\u00fd ot\u00e1\u010dkom\u011br)\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1536x1023.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU.webp 1600w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/cs\/product-category\/parts\/\" rel=\"tag\">D\u00edly<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/cs\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optick\u00fd senzor (laserov\u00fd ot\u00e1\u010dkom\u011br)\">Optick\u00fd senzor (laserov\u00fd ot\u00e1\u010dkom\u011br)<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>124.00<\/span> + DPH (pokud se uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/cs\/wp-json\/wp\/v2\/glossary\/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=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/cs\/wp-json\/wp\/v2\/glossary\/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=\"P\u0159idat do ko\u0161\u00edku: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1832\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/balanset-4\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/balanset-4\/\" title=\"Balanset-4\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Sada pro vyva\u017eov\u00e1n\u00ed rotor\u016f Vibromera: p\u0159epravn\u00ed kuf\u0159\u00edk, v\u00edcekan\u00e1lov\u00fd zesilova\u010d sign\u00e1lu, ru\u010dn\u00ed analyz\u00e1tor, magnetick\u00e1 z\u00e1kladna, vibra\u010dn\u00ed senzory a spir\u00e1lov\u00e9 kabely.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4.webp 640w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/cs\/product-category\/devices\/\" rel=\"tag\">Za\u0159\u00edzen\u00ed<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/cs\/product\/balanset-4\/\" title=\"Balanset-4\">Balanset-4<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>6,803.00<\/span> + DPH (pokud se uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/cs\/wp-json\/wp\/v2\/glossary\/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=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/cs\/wp-json\/wp\/v2\/glossary\/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=\"P\u0159idat do ko\u0161\u00edku: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1833\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div><!-- \/.row --><div class=\"row\">\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/magnet-stand\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/magnet-stand\/\" title=\"Magnetick\u00fd stojan Insize-60 kgf\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Magnetick\u00e1 z\u00e1kladna.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/cs\/product-category\/parts\/\" rel=\"tag\">D\u00edly<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/cs\/product\/magnet-stand\/\" title=\"Magnetick\u00fd stojan Insize-60 kgf\">Magnetick\u00fd stojan Insize-60 kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>46.00<\/span> + DPH (pokud se uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/cs\/wp-json\/wp\/v2\/glossary\/293?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/cs\/wp-json\/wp\/v2\/glossary\/293?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1852\" data-product_sku=\"MS-1\" aria-label=\"P\u0159idat do ko\u0161\u00edku: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1852\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/reflective-tape\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/reflective-tape\/\" title=\"Reflexn\u00ed p\u00e1ska\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Reflexn\u00ed p\u00e1ska\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-16x12.webp 16w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/cs\/product-category\/parts\/\" rel=\"tag\">D\u00edly<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/cs\/product\/reflective-tape\/\" title=\"Reflexn\u00ed p\u00e1ska\">Reflexn\u00ed p\u00e1ska<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>10.00<\/span> + DPH (pokud se uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/cs\/wp-json\/wp\/v2\/glossary\/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=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/cs\/wp-json\/wp\/v2\/glossary\/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=\"P\u0159idat do ko\u0161\u00edku: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2329\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/dynamic-balancer-balanset-1a\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamick\u00fd vyva\u017eova\u010d &quot;Balanset-1A&quot; OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Obsah sady Balanset-1A s jednotkou rozhran\u00ed, senzory, ot\u00e1\u010dkom\u011brem a p\u0159\u00edslu\u0161enstv\u00edm\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1024x683.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1536x1024.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-2048x1366.webp 2048w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-e1732998877834.webp 708w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/cs\/product-category\/devices\/\" rel=\"tag\">Za\u0159\u00edzen\u00ed<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/cs\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamick\u00fd vyva\u017eova\u010d &quot;Balanset-1A&quot; OEM\">Dynamick\u00fd vyva\u017eova\u010d \"Balanset-1A\" OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,735.00<\/span> + DPH (pokud se uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/cs\/wp-json\/wp\/v2\/glossary\/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=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/cs\/wp-json\/wp\/v2\/glossary\/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=\"P\u0159idat do ko\u0161\u00edku: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_4193\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/section>\n\t\t\n<p><strong>Frekvence pr\u016fchodu lopatek<\/strong> (VPF \u2013 tak\u00e9 naz\u00fdvan\u00e1 frekvence lopatek ob\u011b\u017en\u00e9ho kola nebo jednodu\u0161e frekvence pr\u016fchodu lopatky) je frekvence, s jakou lopatky rotuj\u00edc\u00edho ob\u011b\u017en\u00e9ho kola \u010derpadla m\u00edjej\u00ed pevn\u00fd referen\u010dn\u00ed bod, jako je nap\u0159\u00edklad p\u0159edn\u00ed hrana spir\u00e1lov\u00e9ho t\u011blesa (jaz\u00fd\u010dek), lopatky difuzoru nebo jin\u00fd prvek t\u011blesa. Vypo\u010d\u00edt\u00e1 se jako po\u010det lopatek ob\u011b\u017en\u00e9ho kola vyn\u00e1soben\u00fd frekvenc\u00ed ot\u00e1\u010den\u00ed h\u0159\u00eddele: <strong>VPF = N<sub>v<\/sub> \u00d7 RPM \/ 60<\/strong>. VPF je p\u0159\u00edm\u00fdm ekvivalentem v \u010derpadlech <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/blade-passing-frequency\/\">frekvence pr\u016fchodu lopatky<\/a> kter\u00fd se vyskytuje u ventil\u00e1tor\u016f a p\u0159edstavuje hlavn\u00ed hydraulick\u00fd <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/vibration\/\">vibrace<\/a> zdroj u odst\u0159ediv\u00fdch \u010derpadel, kter\u00fd se u pr\u016fmyslov\u00fdch stroj\u016f obvykle pohybuje v rozmez\u00ed 100 a\u017e 500 Hz. Sledov\u00e1n\u00ed amplitudy VPF a jej\u00ed <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/harmonics\/\">harmonick\u00e9<\/a> poskytuje d\u016fle\u017eit\u00e9 diagnostick\u00e9 informace o stavu ob\u011b\u017en\u00e9ho kola, hydraulick\u00e9m v\u00fdkonu a vnit\u0159n\u00edch v\u016fl\u00edch.<\/p>\n<h2>1. V\u00fdpo\u010det a typick\u00e9 hodnoty<\/h2>\n<h3>Vzorec<\/h3>\n<blockquote><p><strong>VPF = N<sub>v<\/sub> \u00d7 N \/ 60<\/strong> &nbsp; where N<sub>v<\/sub> = po\u010det lopatek ob\u011b\u017en\u00e9ho kola, N = ot\u00e1\u010dky h\u0159\u00eddele v ot.\/min, v\u00fdsledek je uveden v Hz.<\/p><\/blockquote>\n<p>Proto\u017ee VPF je v\u017edy celo\u010d\u00edseln\u00fdm n\u00e1sobkem <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/running-speed\/\">provozn\u00ed ot\u00e1\u010dky<\/a> (1\u00d7), pat\u0159\u00ed jednozna\u010dn\u011b mezi synchronn\u00ed slo\u017eky spektra \u2013 jedn\u00e1 se o skute\u010dnou frekvenci lopatek <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/harmonics\/\">harmonick\u00e1<\/a> ot\u00e1\u010dek h\u0159\u00eddele, nikoli samostatn\u00e9 frekvence.<\/p>\n<h3>\u0158e\u0161en\u00e9 p\u0159\u00edklady<\/h3>\n<ul>\n<li><strong>Small pump:<\/strong> 5 lopatek p\u0159i 3500 ot.\/min. \u2192 VPF = 5 \u00d7 3500 \/ 60 = <strong>292 Hz<\/strong>.<\/li>\n<li><strong>Velk\u00e9 procesn\u00ed \u010derpadlo:<\/strong> 7 lopatek p\u0159i 1750 ot.\/min. \u2192 VPF = 7 \u00d7 1750 \/ 60 = <strong>204 Hz<\/strong>.<\/li>\n<li><strong>\u010cerpadlo na vysok\u00e9 ot\u00e1\u010dky:<\/strong> 6 lopatek p\u0159i 4200 ot.\/min. \u2192 VPF = 6 \u00d7 4200 \/ 60 = <strong>420 Hz<\/strong>.<\/li>\n<\/ul>\n<h3>Typick\u00fd po\u010det lopatek<\/h3>\n<ul>\n<li><strong>Odst\u0159ediv\u00e1 \u010derpadla:<\/strong> 3\u201312 lopatek, p\u0159i\u010dem\u017e nej\u010dast\u011bji se vyskytuje 5\u20137 lopatek.<\/li>\n<li><strong>Small pumps:<\/strong> m\u00e9n\u011b lopatek (3\u20135).<\/li>\n<li><strong>Large pumps:<\/strong> v\u00edce lopatek (7\u201312).<\/li>\n<li><strong>\u010cerpadla s vysok\u00fdm v\u00fdtlakem:<\/strong> v\u00edce lopatek pro \u00fa\u010dinn\u00fd p\u0159enos energie.<\/li>\n<\/ul>\n<p>Znalost p\u0159esn\u00e9ho po\u010dtu lopatek je z\u00e1sadn\u00ed, proto\u017ee pr\u00e1v\u011b to odli\u0161uje VPF od n\u00e1hodn\u00e9 harmonick\u00e9 h\u0159\u00eddele; pokud nen\u00ed k dispozici v\u00fdkres ob\u011b\u017en\u00e9ho kola, lze po\u010det lopatek \u010dasto zjistit spo\u010d\u00edt\u00e1n\u00edm harmonick\u00e9ho \u0159\u00e1du, v n\u011bm\u017e se vyskytuje dominantn\u00ed hydraulick\u00fd vrchol. <a href=\"https:\/\/vibromera.eu\/cs\/calculators\/blade-pass-frequency\/\">Kalkula\u010dka frekvence pr\u016fchodu lopatek<\/a> zaji\u0161\u0165uje v\u00fdpo\u010dty pro \u010derpadla i ventil\u00e1tory a <a href=\"https:\/\/vibromera.eu\/cs\/calculators\/harmonic-frequency-calculator\/\">Kalkula\u010dka harmonick\u00fdch frekvenc\u00ed<\/a> pom\u00e1h\u00e1 um\u00edstit VPF a jeho n\u00e1sobky na osu frekvence.<\/p>\n<h2>2. Fyzik\u00e1ln\u00ed mechanismus<\/h2>\n<h3>Tlakov\u00e9 pulzace<\/h3>\n<p>VPF je zp\u016fsobeno sp\u00ed\u0161e kol\u00eds\u00e1n\u00edm hydraulick\u00e9ho tlaku ne\u017e mechanickou silou. Postup je n\u00e1sleduj\u00edc\u00ed:<\/p>\n<ol>\n<li>Ka\u017ed\u00e1 lopatka ob\u011b\u017en\u00e9ho kola odv\u00e1d\u00ed tekutinu ven vysokou rychlost\u00ed.<\/li>\n<li>Jakmile lopatka prolet\u00ed kolem spir\u00e1lov\u00e9ho n\u00e1b\u011b\u017en\u00e9ho profilu, vyvol\u00e1 to prudk\u00fd tlakov\u00fd r\u00e1z.<\/li>\n<li>V tom okam\u017eiku se tlakov\u00fd rozd\u00edl na lopatce rychle m\u011bn\u00ed.<\/li>\n<li>To vyvol\u00e1v\u00e1 silov\u00fd r\u00e1z jak na ob\u011b\u017en\u00e9m kole, tak na sk\u0159\u00edni.<\/li>\n<li>With N<sub>v<\/sub> vanes, N<sub>v<\/sub> k takov\u00fdm impulz\u016fm doch\u00e1z\u00ed p\u0159i ka\u017ed\u00e9 ot\u00e1\u010dce.<\/li>\n<li>V\u00fdsledn\u00e1 frekvence pulzace se rovn\u00e1 frekvenci pr\u016fchodu lopatek \u2013 VPF.<\/li>\n<\/ol>\n<p>D\u00edky tomu pat\u0159\u00ed VPF ke klasick\u00fdm <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/hydraulic-forces\/\">hydraulick\u00e9 s\u00edly<\/a> p\u016fsoben\u00ed na \u010derpadlo, na rozd\u00edl od \u010dist\u011b mechanick\u00fdch podn\u011bt\u016f, jako jsou <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/unbalance\/\">nevyv\u00e1\u017eenost<\/a> nebo z\u00e1vady lo\u017eisek.<\/p>\n<h3>V bodu nejvy\u0161\u0161\u00ed \u00fa\u010dinnosti (BEP)<\/h3>\n<ul>\n<li>\u00dahel proud\u011bn\u00ed odpov\u00edd\u00e1 \u00fahlu lopatky.<\/li>\n<li>Pr\u016ftok je plynul\u00fd, s minim\u00e1ln\u00edmi turbulencemi.<\/li>\n<li>Amplituda VPF je m\u00edrn\u00e1 a stabiln\u00ed.<\/li>\n<li>Rozlo\u017een\u00ed tlaku kolem pl\u00e1\u0161t\u011b je t\u00e9m\u011b\u0159 optim\u00e1ln\u00ed.<\/li>\n<\/ul>\n<h3>Mimo bod nejvy\u0161\u0161\u00ed \u00fa\u010dinnosti<\/h3>\n<ul>\n<li>\u00dahel pr\u016ftoku ji\u017e neodpov\u00edd\u00e1 \u00fahlu lopatky.<\/li>\n<li>Zvy\u0161uje se turbulence a odtrh proud\u011bn\u00ed.<\/li>\n<li>Tlakov\u00e9 pulzace se zesiluj\u00ed.<\/li>\n<li>Amplituda VPF stoup\u00e1, \u010dasto spolu s dal\u0161\u00edmi frekven\u010dn\u00edmi slo\u017ekami.<\/li>\n<\/ul>\n<h2>3. Diagnostick\u00e1 interpretace<\/h2>\n<h3>Norm\u00e1ln\u00ed amplituda VPF<\/h3>\n<ul>\n<li>\u010cerpadlo pracuje v bod\u011b nejvy\u0161\u0161\u00ed \u00fa\u010dinnosti (BEP) nebo v jeho bl\u00edzkosti.<\/li>\n<li>Amplituda VPF z\u016fst\u00e1v\u00e1 p\u0159i opakovan\u00fdch m\u011b\u0159en\u00edch stabiln\u00ed.<\/li>\n<li>Obvykle 10\u201330 % amplitudy vibrac\u00ed 1\u00d7.<\/li>\n<li>\u010cist\u00e9 spektrum s minim\u00e1ln\u00edm obsahem harmonick\u00fdch.<\/li>\n<\/ul>\n<h3>Co v\u00e1m nazna\u010duje zv\u00fd\u0161en\u00e1 hodnota VPF<\/h3>\n<p><strong>Pracuje mimo optim\u00e1ln\u00ed provozn\u00ed bod.<\/strong> Provoz p\u0159i n\u00edzk\u00e9m pr\u016ftoku (pod ~70 % BEP) zvy\u0161uje VPF, stejn\u011b jako provoz p\u0159i vysok\u00e9m pr\u016ftoku (nad ~120 % BEP); optim\u00e1ln\u00ed rozsah se pohybuje zhruba mezi 80\u2013110 % BEP. Dlouhodob\u00fd provoz p\u0159i n\u00edzk\u00e9m pr\u016ftoku je tak\u00e9 spojen s <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/recirculation\/\">vnit\u0159n\u00ed recirkulace<\/a>.<\/p>\n<p><strong>Probl\u00e9my s v\u016fl\u00ed mezi ob\u011b\u017en\u00fdm kolem a sk\u0159\u00edn\u00ed.<\/strong> Opot\u0159ebovan\u00e9 t\u011bsnic\u00ed krou\u017eky nebo posunut\u00e9 ob\u011b\u017en\u00e9 kolo <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/bearing-wear\/\">opot\u0159eben\u00ed lo\u017eisek<\/a>, zv\u011bt\u0161\u00ed se provozn\u00ed v\u016fle; s rostouc\u00ed v\u016fl\u00ed stoup\u00e1 amplituda VPF, co\u017e je doprov\u00e1zeno poklesem v\u00fdkonu v d\u016fsledku vnit\u0159n\u00edch \u00fanik\u016f.<\/p>\n<p><strong>Po\u0161kozen\u00ed ob\u011b\u017en\u00e9ho kola.<\/strong> Po\u0161kozen\u00e9 nebo popraskan\u00e9 lopatky zp\u016fsobuj\u00ed asymetrii, co\u017e vede k VPF s <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/sidebands\/\">postrann\u00ed p\u00e1sma<\/a> p\u0159i rychlosti p\u0159ibli\u017en\u011b 1\u00d7; eroze, usazov\u00e1n\u00ed ne\u010distot na lopatk\u00e1ch nebo po\u0161kozen\u00ed ciz\u00edmi p\u0159edm\u011bty maj\u00ed podobn\u00fd \u00fa\u010dinek. Tyto jevy jsou typick\u00e9 pro \u0161ir\u0161\u00ed <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/impeller-defects\/\">vady ob\u011b\u017en\u00e9ho kola<\/a>.<\/p>\n<p><strong>Hydraulick\u00e1 rezonance.<\/strong> Pokud se VPF shoduje s akustick\u00fdm <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/resonance\/\">rezonance<\/a> v potrub\u00ed nebo pl\u00e1\u0161ti se amplituda v\u00fdrazn\u011b zesiluje, co\u017e n\u011bkdy vede k siln\u00fdm konstruk\u010dn\u00edm vibrac\u00edm a hluku, kter\u00e9 vy\u017eaduj\u00ed \u00fapravy syst\u00e9mu.<\/p>\n<h2>4. Harmonick\u00e9 a subharmonick\u00e9 VPF<\/h2>\n<h3>2\u00d7VPF a v\u00edce<\/h3>\n<p>N\u00e1sobky frekvence ot\u00e1\u010dek lopatek jsou varovn\u00fdm sign\u00e1lem:<\/p>\n<ul>\n<li><strong>2\u00d7VPF present:<\/strong> nazna\u010duje nerovnom\u011brn\u00e9 rozestupy lopatek nebo excentricitu ob\u011b\u017en\u00e9ho kola.<\/li>\n<li><strong>V\u00edce harmonick\u00fdch:<\/strong> mohou nazna\u010dovat siln\u00e9 hydraulick\u00e9 turbulence nebo po\u0161kozen\u00ed lopatek.<\/li>\n<li><strong>P\u0159\u00edli\u0161 velk\u00e9 amplitudy:<\/strong> zv\u00fd\u0161it riziko <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/fatigue\/\">\u00fanava<\/a> poruchy lopatek a pl\u00e1\u0161t\u011b.<\/li>\n<\/ul>\n<h3>Subharmonick\u00e9<\/h3>\n<ul>\n<li>Zlomkov\u00e9 slo\u017eky, jako nap\u0159\u00edklad VPF\/2 nebo VPF\/3.<\/li>\n<li>Indikuj\u00ed nestabiln\u00ed proud\u011bn\u00ed, v\u010detn\u011b rota\u010dn\u00edho p\u0159eta\u017een\u00ed a odd\u011blovac\u00edch bun\u011bk.<\/li>\n<li>Vyskytuje se nej\u010dast\u011bji p\u0159i velmi n\u00edzk\u00fdch pr\u016ftoc\u00edch a je podobn\u00e9 jin\u00fdm <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/subharmonic\/\">subharmonick\u00e9<\/a> jevy.<\/li>\n<\/ul>\n<h2>5. Sledov\u00e1n\u00ed a anal\u00fdza trend\u016f<\/h2>\n<h3>Stanoven\u00ed v\u00fdchoz\u00edho stavu<\/h3>\n<ul>\n<li>Zaznamenejte hodnotu VPF, kdy\u017e je \u010derpadlo nov\u00e9 nebo \u010derstv\u011b zrepasovan\u00e9.<\/li>\n<li>Zaznamenejte to v provozn\u00edm bod\u011b n\u00e1vrhu.<\/li>\n<li>Ur\u010dete norm\u00e1ln\u00ed pom\u011br amplitudy VPF a 1\u00d7.<\/li>\n<li>Nastavte mezn\u00ed hodnoty alarmu, obvykle na 2\u20133n\u00e1sobek z\u00e1kladn\u00ed amplitudy VPF.<\/li>\n<\/ul>\n<h3>Trendov\u00e9 parametry<\/h3>\n<ul>\n<li><strong>Amplituda VPF:<\/strong> sledov\u00e1no v \u010dase; postupn\u00fd n\u00e1r\u016fst signalizuje vznikaj\u00edc\u00ed probl\u00e9m.<\/li>\n<li><strong>VPF\/1\u00d7 ratio:<\/strong> by m\u011bla z\u016fstat relativn\u011b konstantn\u00ed.<\/li>\n<li><strong>Harmonick\u00fd obsah:<\/strong> vznik nebo r\u016fst 2\u00d7VPF a 3\u00d7VPF.<\/li>\n<li><strong>V\u00fdvoj postrann\u00edch p\u00e1sem:<\/strong> vznik postrann\u00edch p\u00e1sem \u00b11\u00d7 v okol\u00ed VPF.<\/li>\n<\/ul>\n<h3>V z\u00e1vislosti na provozn\u00edch podm\u00ednk\u00e1ch<\/h3>\n<ul>\n<li>Zobrazte z\u00e1vislost VPF na pr\u016ftoku.<\/li>\n<li>Ur\u010dete provozn\u00ed oblast s minim\u00e1ln\u00ed hodnotou VPF.<\/li>\n<li>Zjistit, zda do\u0161lo k posunu pracovn\u00edho bodu.<\/li>\n<li>Porovnejte chov\u00e1n\u00ed VPF s nam\u011b\u0159en\u00fdm poklesem v\u00fdkonu.<\/li>\n<\/ul>\n<p>This kind of <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/trend-analysis\/\">anal\u00fdza trend\u016f<\/a> z\u00e1vis\u00ed na konzistentn\u00edch a opakovateln\u00fdch spektrech. P\u0159enosn\u00fd dvoukan\u00e1lov\u00fd analyz\u00e1tor, jako je nap\u0159\u00edklad <a href=\"https:\/\/vibromera.eu\/cs\/produkt\/balanset-1\/\">Balanset-1A<\/a> zachycuje <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/spectrum\/\">Spektrum FFT<\/a> s jasn\u011b rozli\u0161en\u00fdm VPF v hydraulick\u00e9m p\u00e1smu 100\u2013500 Hz, tak\u017ee technik m\u016f\u017ee p\u0159i ka\u017ed\u00e9 prohl\u00eddce ov\u011b\u0159it \u0161pi\u010dku v pr\u016fchodu lopatky, sledovat jej\u00ed amplitudu a postrann\u00ed p\u00e1sma a vylou\u010dit mechanick\u00e9 <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/unbalance\/\">nevyv\u00e1\u017eenost<\/a> Potvr\u010fte nebo vylou\u010dte mechanick\u00e9 probl\u00e9my p\u0159ed otev\u0159en\u00edm \u010derpadla.<\/p>\n<h2>6. N\u00e1pravn\u00e1 opat\u0159en\u00ed<\/h2>\n<h3>Optimalizace pracovn\u00edho bodu<\/h3>\n<ul>\n<li>Upravte pr\u016ftok tak, aby se \u010derpadlo p\u0159ibl\u00ed\u017eilo k bodu optim\u00e1ln\u00edho v\u00fdkonu (BEP).<\/li>\n<li>Omezte pr\u016ftok nebo upravte odpor syst\u00e9mu.<\/li>\n<li>Zkontrolujte, zda jsou sac\u00ed podm\u00ednky vyhovuj\u00edc\u00ed.<\/li>\n<\/ul>\n<h3>Mechanick\u00e1 korekce<\/h3>\n<ul>\n<li>Vym\u011b\u0148te opot\u0159ebovan\u00e9 op\u011brn\u00e9 krou\u017eky, abyste obnovili konstruk\u010dn\u00ed v\u016fle.<\/li>\n<li>Vym\u011b\u0148te opot\u0159ebovan\u00e9 nebo po\u0161kozen\u00e9 ob\u011b\u017en\u00e9 kolo.<\/li>\n<li>Odstra\u0148te z\u00e1vady lo\u017eisek, kter\u00e9 zp\u016fsobuj\u00ed posun ob\u011b\u017en\u00e9ho kola.<\/li>\n<li>Zkontrolujte spr\u00e1vnou polohu ob\u011b\u017en\u00e9ho kola, a to jak v axi\u00e1ln\u00edm, tak v radi\u00e1ln\u00edm sm\u011bru.<\/li>\n<\/ul>\n<h3>Vylep\u0161en\u00ed hydraulick\u00e9ho syst\u00e9mu<\/h3>\n<ul>\n<li>Vylep\u0161it p\u0159\u00edvodn\u00ed potrub\u00ed tak, aby se omezilo p\u0159edb\u011b\u017en\u00e9 v\u00ed\u0159en\u00ed a turbulence.<\/li>\n<li>V p\u0159\u00edpad\u011b pot\u0159eby namontujte vyrovn\u00e1va\u010de pr\u016ftoku.<\/li>\n<li>Zajist\u011bte dostate\u010dnou rezervu NPSH, aby se p\u0159ede\u0161lo <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/cavitation\/\">kavitace<\/a>.<\/li>\n<li>Zabra\u0148te vnik\u00e1n\u00ed vzduchu.<\/li>\n<\/ul>\n<h2>7. Vztah k jin\u00fdm frekvenc\u00edm<\/h2>\n<h3>VPF versus BPF<\/h3>\n<ul>\n<li>Tyto pojmy se v souvislosti s \u010derpadly a ventil\u00e1tory \u010dasto pou\u017e\u00edvaj\u00ed zam\u011bniteln\u011b.<\/li>\n<li><strong>VPF:<\/strong> up\u0159ednost\u0148ovan\u00fd term\u00edn pro \u010derpadla (s lopatkami, kter\u00e9 poh\u00e1n\u011bj\u00ed kapalinu).<\/li>\n<li><strong>BPF:<\/strong> term\u00edn, kter\u00fd up\u0159ednost\u0148uj\u00ed ventil\u00e1tory (lopatky, kter\u00e9 poh\u00e1n\u011bj\u00ed vzduch).<\/li>\n<li>V\u00fdpo\u010detn\u00ed a diagnostick\u00fd postup jsou stejn\u00e9.<\/li>\n<\/ul>\n<h3>VPF versus rychlost b\u011bhu<\/h3>\n<ul>\n<li>VPF = N<sub>v<\/sub> \u00d7 (frekvence ot\u00e1\u010dek).<\/li>\n<li>VPF m\u00e1 v\u017edy vy\u0161\u0161\u00ed frekvenci ne\u017e 1\u00d7.<\/li>\n<li>Nap\u0159\u00edklad u 7-lopatkov\u00e9ho ob\u011b\u017en\u00e9ho kola se hodnota VPF rovn\u00e1 p\u0159esn\u011b 7n\u00e1sobku provozn\u00ed rychlosti.<\/li>\n<\/ul>\n<p>Frekvence pr\u016fchodu lopatek je z\u00e1kladn\u00ed slo\u017ekou hydraulick\u00fdch vibrac\u00ed ka\u017ed\u00e9ho odst\u0159ediv\u00e9ho \u010derpadla. Zvl\u00e1dnut\u00ed jej\u00edho v\u00fdpo\u010dtu, rozli\u0161en\u00ed mezi norm\u00e1ln\u00edmi a zv\u00fd\u0161en\u00fdmi amplitudami a propojen\u00ed jej\u00edch charakteristik s provozn\u00edmi podm\u00ednkami i stavem \u010derpadla prom\u011bn\u00ed jednotliv\u00fd spektr\u00e1ln\u00ed vrchol v \u00fa\u010dinn\u00fd diagnostick\u00fd n\u00e1stroj \u2013 kter\u00fd pom\u00e1h\u00e1 \u010dinit spr\u00e1vn\u00e1 rozhodnut\u00ed ohledn\u011b optimalizace provozn\u00edho bodu, obnoven\u00ed v\u016fle a v\u00fdm\u011bny ob\u011b\u017en\u00e9ho kola. Jedn\u00e1 se o z\u00e1kladn\u00ed k\u00e1men \u0161ir\u0161\u00edho <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/pump-defects\/\">diagnostika poruch \u010derpadla<\/a>.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/cs\/glossary\/\">\u2190 Zp\u011bt na hlavn\u00ed index<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Zjist\u011bte v\u00edce o frekvenci pr\u016fchodu lopatek (VPF), co\u017e je rychlost, s jakou lopatky ob\u011b\u017en\u00e9ho kola \u010derpadla proch\u00e1zej\u00ed stacion\u00e1rn\u00edm difuz\u00e9rem nebo spir\u00e1ln\u00edm v\u00fdvodem, co\u017e je nezbytn\u00e9 pro diagnostiku hydraulick\u00fdch a mechanick\u00fdch probl\u00e9m\u016f.<\/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\/cs\/wp-json\/wp\/v2\/glossary\/293","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/glossary\/293\/revisions"}],"predecessor-version":[{"id":101369,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/glossary\/293\/revisions\/101369"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/media?parent=293"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/categories?post=293"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/tags?post=293"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}