{"id":197,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/pole-pass-frequency\/"},"modified":"2026-07-02T18:51:35","modified_gmt":"2026-07-02T18:51:35","slug":"pole-pass-frequency","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/pt-br\/glossary\/pole-pass-frequency\/","title":{"rendered":"What is Pole Pass Frequency? Motor Electromagnetic Forces"},"content":{"rendered":"<h1>Compreendendo a Frequ\u00eancia de Passagem de Polo<\/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\/pt-br\/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\/pt-br\/product\/balanset-1\/\" title=\"Portable balancer &#038; Vibration analyzer 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 full kit portable balancer and vibration analyzer\" 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\/pt-br\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/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\/pt-br\/product\/balanset-1\/\" title=\"Portable balancer &#038; Vibration analyzer Balanset-1A\">Balanceador port\u00e1til &#038; Analisador de vibra\u00e7\u00e3o 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> + IVA (se aplic\u00e1vel)<\/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=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/197?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=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/197?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=\"Adicione ao carrinho: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/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\/pt-br\/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\/pt-br\/product\/vibration-sensor\/\" title=\"Sensor de vibra\u00e7\u00e3o\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A vibration sensor close-up\" 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\/pt-br\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/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\/pt-br\/product\/vibration-sensor\/\" title=\"Sensor de vibra\u00e7\u00e3o\">Sensor de vibra\u00e7\u00e3o<\/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> + IVA (se aplic\u00e1vel)<\/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=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/197?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=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/197?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=\"Adicione ao carrinho: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/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\/pt-br\/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\/pt-br\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Sensor \u00d3ptico (Tac\u00f4metro a Laser)\">\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=\"Sensor \u00d3ptico (Tac\u00f4metro a Laser)\" 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\/pt-br\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/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\/pt-br\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Sensor \u00d3ptico (Tac\u00f4metro a Laser)\">Sensor \u00d3ptico (Tac\u00f4metro a Laser)<\/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> + IVA (se aplic\u00e1vel)<\/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=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/197?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=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/197?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=\"Adicione ao carrinho: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/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\/pt-br\/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\/pt-br\/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 rotor balancing kit: carry case, multi-channel signal conditioner, handheld analyzer, magnetic base, vibration sensors, and coiled cables.\" 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\/pt-br\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/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\/pt-br\/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> + IVA (se aplic\u00e1vel)<\/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=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/197?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=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/197?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=\"Adicione ao carrinho: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/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\/pt-br\/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\/pt-br\/product\/magnet-stand\/\" title=\"Suporte Magn\u00e9tico 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=\"Magnet base.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt-br\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/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\/pt-br\/product\/magnet-stand\/\" title=\"Suporte Magn\u00e9tico Insize-60-kgf\">Suporte Magn\u00e9tico 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> + IVA (se aplic\u00e1vel)<\/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=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/197?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=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/197?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=\"Adicione ao carrinho: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/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\/pt-br\/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\/pt-br\/product\/reflective-tape\/\" title=\"Fita refletiva\">\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=\"Fita refletiva\" 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\/pt-br\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/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\/pt-br\/product\/reflective-tape\/\" title=\"Fita refletiva\">Fita refletiva<\/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> + IVA (se aplic\u00e1vel)<\/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=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/197?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=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/197?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=\"Adicione ao carrinho: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/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\/pt-br\/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\/pt-br\/product\/dynamic-balancer-balanset-1a\/\" title=\"Balanceador din\u00e2mico \u201cBalanset-1A\u201d OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A kit contents with interface unit, sensors, tachometer and accessories\" 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\/pt-br\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/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\/pt-br\/product\/dynamic-balancer-balanset-1a\/\" title=\"Balanceador din\u00e2mico \u201cBalanset-1A\u201d OEM\">Balanceador din\u00e2mico \u201cBalanset-1A\u201d 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> + IVA (se aplic\u00e1vel)<\/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=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/197?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=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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=\"\/pt-br\/wp-json\/wp\/v2\/glossary\/197?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=\"Adicione ao carrinho: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/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>Frequ\u00eancia de passagem de polo<\/strong> (PPF) \u00e9 o componente de baixa frequ\u00eancia <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/vibration\/\">vibra\u00e7\u00e3o<\/a> gerado em um motor de indu\u00e7\u00e3o CA \u00e0 medida que o campo magn\u00e9tico rotativo desliza pelo rotor. \u00c9 calculado como o n\u00famero de polos multiplicado pela <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/slip-frequency\/\">frequ\u00eancia de deslizamento<\/a>: PPF = n\u00famero de polos \u00d7 (velocidade s\u00edncrona \u2212 velocidade real) \/ 60. Como o deslizamento \u00e9 pequeno, a PPF \u00e9 uma frequ\u00eancia muito baixa \u2014 tipicamente apenas alguns hertz \u2014 e geralmente aparece n\u00e3o como um pico isolado, mas como <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/sidebands\/\">bandas laterais<\/a> espa\u00e7adas na PPF ao redor dos componentes da velocidade de opera\u00e7\u00e3o e da frequ\u00eancia da rede. Essa modula\u00e7\u00e3o relacionada ao deslizamento \u00e9 grandemente amplificada quando o motor apresenta <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/air-gap\/\">entreferro<\/a> excentricidade, barras do rotor quebradas ou um problema de alinhamento rotor-estator. Por isso, a PPF \u00e9 uma das ferramentas mais \u00fateis para separar <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/electrical-faults\/\">falhas el\u00e9tricas<\/a> de problemas puramente mec\u00e2nicos.<\/p>\n<p>A PPF \u00e9 importante diagnosticamente porque a amplitude elevada <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/sidebands\/\">bandas laterais<\/a> espa\u00e7ada nesta frequ\u00eancia aponta diretamente para um problema eletromagn\u00e9tico \u2014 um rotor exc\u00eantrico, barras do rotor quebradas, um entreferro n\u00e3o uniforme ou uma intera\u00e7\u00e3o din\u00e2mica rotor-estator \u2014 em vez de <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/unbalance\/\">desbalanceamento<\/a> ou <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/misalignment\/\">desalinhamento<\/a>. Interpretada corretamente, ela indica ao analista se deve abrir o motor ou procurar em outro lugar no conjunto.<\/p>\n<h2>1. Calculando a Frequ\u00eancia de Passagem de Polo<\/h2>\n<h3>A f\u00f3rmula b\u00e1sica<\/h3>\n<ul>\n<li><strong>PPF = P \u00d7 (N<sub>s\u00edncrona<\/sub> \u2212 N) \/ 60<\/strong><\/li>\n<li>onde <strong>P<\/strong> = n\u00famero de polos,<\/li>\n<li><strong>N<sub>s\u00edncrona<\/sub><\/strong> = velocidade s\u00edncrona em RPM (N<sub>s\u00edncrona<\/sub> = 120 \u00d7 frequ\u00eancia da rede \/ P),<\/li>\n<li><strong>N<\/strong> = velocidade real do rotor em RPM,<\/li>\n<li>e o resultado est\u00e1 em Hz. O termo (N<sub>s\u00edncrona<\/sub> \u2212 N) \/ 60 \u00e9 a frequ\u00eancia de deslizamento expressa em Hz.<\/li>\n<\/ul>\n<p>Observe que a PPF \u00e9 constru\u00edda sobre a <em>diferen\u00e7a<\/em> entre a velocidade s\u00edncrona e a velocidade real \u2014 o <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/slip-frequency\/\">escorregamento<\/a>. Em vazio, um motor de indu\u00e7\u00e3o gira quase na velocidade s\u00edncrona, ent\u00e3o a PPF se aproxima de zero; \u00e0 medida que a carga aumenta, o deslizamento e, portanto, a PPF crescem junto, terminando tipicamente na faixa de aproximadamente 0,5\u20133,5 Hz na carga nominal. N\u00e3o confunda a PPF com a ordem puramente mec\u00e2nica P \u00d7 velocidade de opera\u00e7\u00e3o (para um motor de 4 polos a 1750 RPM, isso \u00e9 cerca de 116,7 Hz) \u2014 isso \u00e9 um harm\u00f4nico da rota\u00e7\u00e3o do eixo, n\u00e3o a frequ\u00eancia de passagem pelos polos. Quando voc\u00ea precisa converter a velocidade de opera\u00e7\u00e3o em uma fam\u00edlia de ordens rapidamente, nosso <a href=\"https:\/\/vibromera.eu\/pt-br\/calculators\/harmonic-frequency-calculator\/\">Calculadora de frequ\u00eancia harm\u00f4nica<\/a> converte RPM em Hz nas ordens de 1\u00d7 a 10\u00d7, e o <a href=\"https:\/\/vibromera.eu\/pt-br\/calculators\/motor-electrical-frequencies\/\">Calculadora de Frequ\u00eancia de Defeitos El\u00e9tricos do Motor<\/a> exibe as frequ\u00eancias eletromagn\u00e9ticas lado a lado.<\/p>\n<h3>Exemplos resolvidos<\/h3>\n<p><strong>Motor de 4 polos a 1750 RPM (alimenta\u00e7\u00e3o de 60 Hz):<\/strong><\/p>\n<ul>\n<li>Velocidade s\u00edncrona N<sub>s\u00edncrona<\/sub> = 120 \u00d7 60 \/ 4 = 1800 RPM.<\/li>\n<li>Frequ\u00eancia de deslizamento = (1800 \u2212 1750) \/ 60 = 0,83 Hz.<\/li>\n<li><strong>PPF = 4 \u00d7 (1800 \u2212 1750) \/ 60 = 3,33 Hz<\/strong><\/li>\n<li>No espectro de vibra\u00e7\u00e3o <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/spectrum\/\">espectro<\/a> ela aparece como bandas laterais espa\u00e7adas \u00b13,33 Hz ao redor do pico de 1\u00d7 velocidade de opera\u00e7\u00e3o (29,2 Hz) e ao redor de 2\u00d7 frequ\u00eancia da rede (120 Hz) \u2014 um padr\u00e3o diagn\u00f3stico para excentricidade e barras do rotor quebradas.<\/li>\n<\/ul>\n<p><strong>Motor de 6 polos a 970 RPM (alimenta\u00e7\u00e3o de 50 Hz):<\/strong><\/p>\n<ul>\n<li>Velocidade s\u00edncrona N<sub>s\u00edncrona<\/sub> = 120 \u00d7 50 \/ 6 = 1000 RPM.<\/li>\n<li>Frequ\u00eancia de deslizamento = (1000 \u2212 970) \/ 60 = 0,5 Hz.<\/li>\n<li><strong>PPF = 6 \u00d7 (1000 \u2212 970) \/ 60 = 3,0 Hz<\/strong><\/li>\n<li>Bandas laterais espa\u00e7adas apenas \u00b13,0 Hz ao redor do pico de 1\u00d7 (16,2 Hz) ou ao redor de 2\u00d7 frequ\u00eancia da rede (100 Hz) s\u00e3o f\u00e1ceis de perder.<\/li>\n<li>Resolver isso exige an\u00e1lise espectral cuidadosa e de alta resolu\u00e7\u00e3o <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/spectral-analysis\/\">an\u00e1lise espectral<\/a>.<\/li>\n<\/ul>\n<h2>2. O Mecanismo F\u00edsico<\/h2>\n<h3>Como a for\u00e7a eletromagn\u00e9tica \u00e9 gerada<\/h3>\n<p>A cadeia de eventos que cria a PPF \u00e9 direta:<\/p>\n<ol>\n<li>Os enrolamentos do estator criam um campo magn\u00e9tico que gira na velocidade s\u00edncrona.<\/li>\n<li>Esse campo \u00e9 organizado em polos magn\u00e9ticos em um padr\u00e3o N\u2013S\u2013N\u2013S.<\/li>\n<li>O rotor gira ligeiramente mais devagar devido ao deslizamento, ent\u00e3o os polos do campo deslizam continuamente pelo rotor em vez de permanecerem travados nele.<\/li>\n<li>Cada vez que um polo do campo desliza por um ponto espec\u00edfico no rotor (uma barra de alta resist\u00eancia, um lado exc\u00eantrico do entreferro), a for\u00e7a magn\u00e9tica atuando naquele ponto \u00e9 modulada.<\/li>\n<li>Com <strong>P<\/strong> polos, esse ponto \u00e9 percorrido <strong>P<\/strong> vezes por ciclo de deslizamento.<\/li>\n<li>A frequ\u00eancia da modula\u00e7\u00e3o resultante \u00e9, portanto, P \u00d7 frequ\u00eancia de deslizamento = PPF \u2014 um lento &#8220;batimento&#8221; sobreposto \u00e0 vibra\u00e7\u00e3o da velocidade de opera\u00e7\u00e3o e da frequ\u00eancia da rede.<\/li>\n<\/ol>\n<h3>Entreferro uniforme \u2014 um motor saud\u00e1vel<\/h3>\n<ul>\n<li>O rotor est\u00e1 centrado no furo do estator.<\/li>\n<li>O entreferro \u00e9 uniforme ao redor de toda a circunfer\u00eancia.<\/li>\n<li>As for\u00e7as magn\u00e9ticas est\u00e3o equilibradas e se cancelam.<\/li>\n<li>A modula\u00e7\u00e3o relacionada \u00e0 PPF \u00e9, consequentemente, muito baixa em amplitude.<\/li>\n<\/ul>\n<h3>Entreferro exc\u00eantrico \u2014 um motor defeituoso<\/h3>\n<ul>\n<li>O rotor fica descentrado devido a <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/bearing-wear\/\">desgaste do rolamento<\/a>, a <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/bent-shaft\/\">eixo empenado<\/a>, ou a um erro de fabrica\u00e7\u00e3o.<\/li>\n<li>O entreferro \u00e9 menor de um lado e maior do lado oposto.<\/li>\n<li>As for\u00e7as magn\u00e9ticas ficam desequilibradas \u2014 mais fortes onde o entreferro \u00e9 menor.<\/li>\n<li>Aparece uma for\u00e7a radial resultante \u2014 <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/magnetic-pull\/\">puxamento magn\u00e9tico desequilibrado<\/a> \u2014 e ela \u00e9 modulada na PPF \u00e0 medida que os polos do campo deslizam pela parte estreita do entreferro.<\/li>\n<li>Bandas laterais espa\u00e7adas pela PPF se desenvolvem em torno dos picos espectrais principais e crescem com a severidade.<\/li>\n<\/ul>\n<h2>3. Bandas Laterais e Padr\u00f5es Diagn\u00f3sticos<\/h2>\n<h3>Excentricidade est\u00e1tica<\/h3>\n<p>Aqui o centro do rotor est\u00e1 deslocado, mas estacion\u00e1rio em rela\u00e7\u00e3o ao estator:<\/p>\n<ul>\n<li><strong>Padr\u00e3o:<\/strong> um componente elevado de 2\u00d7 frequ\u00eancia da rede (100\/120 Hz); as bandas laterais de passagem de polo s\u00e3o fracas ou ausentes porque o deslocamento n\u00e3o gira com o eixo.<\/li>\n<li><strong>Causa:<\/strong> desgaste do rolamento, distor\u00e7\u00e3o da carca\u00e7a ou da tampa de extremidade, ou um erro de usinagem no furo do estator.<\/li>\n<li><strong>Amplitude:<\/strong> a amplitude de 2\u00d7 frequ\u00eancia da rede indica a severidade da excentricidade.<\/li>\n<\/ul>\n<h3>Excentricidade din\u00e2mica<\/h3>\n<p>Aqui o centro do rotor orbita, ou gira em precess\u00e3o, ao redor do centro do estator:<\/p>\n<ul>\n<li><strong>Padr\u00e3o:<\/strong> picos de 1\u00d7 velocidade de opera\u00e7\u00e3o e 2\u00d7 frequ\u00eancia da rede com bandas laterais espa\u00e7adas pela PPF (por exemplo, \u00b13,33 Hz no exemplo de 4 polos acima).<\/li>\n<li><strong>Causas:<\/strong> um eixo empenado, rotor <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/rotor-eccentricity\/\">excentricidade<\/a>, rotor-estator <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/rotor-rub\/\">atrito mec\u00e2nico<\/a> ou rolamento <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/looseness\/\">folga mec\u00e2nica<\/a>.<\/li>\n<li><strong>Mais grave:<\/strong> sinaliza uma intera\u00e7\u00e3o din\u00e2mica ativa em vez de um deslocamento fixo. A mesma fam\u00edlia de bandas laterais de passagem de polo em torno de 1\u00d7 e seus harm\u00f4nicos \u00e9 a assinatura cl\u00e1ssica de barras do rotor quebradas.<\/li>\n<\/ul>\n<h3>Excentricidade mista<\/h3>\n<ul>\n<li>Uma combina\u00e7\u00e3o de efeitos est\u00e1ticos e din\u00e2micos.<\/li>\n<li>Este \u00e9 o estado mais comum encontrado em motores reais.<\/li>\n<li>Produz padr\u00f5es complexos de bandas laterais.<\/li>\n<li>\u00c9 necess\u00e1ria uma an\u00e1lise cuidadosa para interpret\u00e1-lo corretamente.<\/li>\n<\/ul>\n<h2>4. Interpreta\u00e7\u00e3o Diagn\u00f3stica<\/h2>\n<p>Como a PPF \u00e9 de apenas alguns hertz, ela \u00e9 julgada pela for\u00e7a de suas bandas laterais em torno dos picos de 1\u00d7 velocidade de opera\u00e7\u00e3o e 2\u00d7 frequ\u00eancia da rede, lida como um cont\u00ednuo:<\/p>\n<h3>Baixa \u2014 bandas laterais de passagem de polo mal vis\u00edveis acima do ru\u00eddo de fundo<\/h3>\n<ul>\n<li>Uma condi\u00e7\u00e3o normal.<\/li>\n<li>Um entreferro uniforme e boa concentricidade rotor-estator.<\/li>\n<li>Nenhuma a\u00e7\u00e3o corretiva necess\u00e1ria.<\/li>\n<\/ul>\n<h3>Moderada \u2014 bandas laterais claramente vis\u00edveis, mas muito abaixo do pico portador<\/h3>\n<ul>\n<li>Leve n\u00e3o uniformidade do entreferro ou degrada\u00e7\u00e3o inicial do circuito do rotor.<\/li>\n<li>Monitore a tend\u00eancia e verifique a condi\u00e7\u00e3o do rolamento.<\/li>\n<li>Verifique a posi\u00e7\u00e3o do rotor se for acess\u00edvel.<\/li>\n<li>N\u00e3o \u00e9 imediatamente cr\u00edtico, mas merece aten\u00e7\u00e3o.<\/li>\n<\/ul>\n<h3>Alta \u2014 bandas laterais se aproximando do pico portador em amplitude<\/h3>\n<ul>\n<li>Excentricidade significativa, barras do rotor quebradas ou um problema no entreferro.<\/li>\n<li>Um &#8220;batimento&#8221; de baixa frequ\u00eancia pronunciado pode ser sentido ou ouvido na PPF.<\/li>\n<li>Risco de contato rotor-estator.<\/li>\n<li>For\u00e7as eletromagn\u00e9ticas crescentes que aceleram o dano.<\/li>\n<li>Planeje reparo ou substitui\u00e7\u00e3o.<\/li>\n<\/ul>\n<p>Na pr\u00e1tica, o analista raramente julga a PPF isoladamente. Um analisador port\u00e1til de dois canais, como o <a href=\"https:\/\/vibromera.eu\/pt-br\/produto\/balanset-1\/\">Balanset-1A<\/a>, usado nas caixas dos rolamentos, captura o espectro e resolve as bandas laterais de passagem de polo em torno dos picos de 1\u00d7 e frequ\u00eancia da rede \u2014 e, t\u00e3o importante quanto, confirma se o componente dominante \u00e9 eletromagn\u00e9tico ou o simples pico de 1\u00d7 de uma falha mec\u00e2nica. Essa distin\u00e7\u00e3o decide tudo o que se segue: uma assinatura eletromagn\u00e9tica leva voc\u00ea para dentro do motor, enquanto um pico de 1\u00d7 limpo que desaparece no instante em que a energia \u00e9 cortada aponta para <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/unbalance\/\">desbalanceamento<\/a> voc\u00ea pode corrigir por <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/balanceamento-de-campo\/\">balanceamento em campo<\/a> o rotor no lugar.<\/p>\n<h2>5. Rela\u00e7\u00e3o com Outras Frequ\u00eancias do Motor<\/h2>\n<p>A PPF \u00e9 um tom em um espectro de motor lotado, e reconhecer onde ela se situa em rela\u00e7\u00e3o aos seus vizinhos \u00e9 metade da batalha. Uma hierarquia t\u00edpica para um motor de 4 polos, 1750 RPM em uma rede de 60 Hz \u00e9:<\/p>\n<ul>\n<li><strong>Frequ\u00eancia de escorregamento:<\/strong> (1800 \u2212 1750) \/ 60 \u2248 0,83 Hz.<\/li>\n<li><strong>PPF:<\/strong> P \u00d7 frequ\u00eancia de escorregamento \u2014 cerca de 3,3 Hz aqui, o tom mais baixo da fam\u00edlia.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/running-speed\/\">Velocidade de opera\u00e7\u00e3o<\/a> (1\u00d7):<\/strong> cerca de 29,2 Hz.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/electrical-frequency\/\">Frequ\u00eancia da rede<\/a>:<\/strong> 60 Hz (ou 50 Hz na Europa).<\/li>\n<li><strong>Ordem mec\u00e2nica do rotor P \u00d7 velocidade de opera\u00e7\u00e3o:<\/strong> cerca de 117 Hz \u2014 frequentemente confundido com PPF, mas \u00e9 um harm\u00f4nico da velocidade do eixo.<\/li>\n<li><strong>2\u00d7 frequ\u00eancia da rede:<\/strong> 120 Hz (ou 100 Hz) \u2014 o componente eletromagn\u00e9tico chave para excentricidade.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/motor-bar-pass-frequency\/\">Frequ\u00eancia de passagem das barras do rotor<\/a>:<\/strong> n\u00famero de barras do rotor \u00d7 velocidade de opera\u00e7\u00e3o, na faixa dos quilohertz.<\/li>\n<\/ul>\n<p>O espa\u00e7amento pr\u00f3ximo de 2\u00d7 frequ\u00eancia da rede (120 Hz) e o pr\u00f3ximo <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/harmonics\/\">harm\u00f4nicos<\/a> da velocidade de opera\u00e7\u00e3o (a 4\u00aa ordem fica em cerca de 117 Hz aqui) \u00e9 exatamente por isso que falhas eletromagn\u00e9ticas s\u00e3o t\u00e3o facilmente confundidas com mec\u00e2nicas \u2014 e por que a estrutura fina das bandas laterais de passagem de polo, e n\u00e3o apenas a amplitude, \u00e9 a pista decisiva. Onde a imagem permanece amb\u00edgua, desligar a alimenta\u00e7\u00e3o \u00e9 o teste definitivo: um componente eletromagn\u00e9tico desaparece instantaneamente com o campo, enquanto um mec\u00e2nico decai apenas \u00e0 medida que o rotor faz a parada por in\u00e9rcia.<\/p>\n<h2>6. M\u00e9todos de Corre\u00e7\u00e3o<\/h2>\n<h3>Para excentricidade mec\u00e2nica<\/h3>\n<ul>\n<li>Substitua os rolamentos desgastados para restaurar o centrar adequado do rotor.<\/li>\n<li>Corrija o eixo empenado ou substitua o rotor.<\/li>\n<li>Remonte o rotor se a falha for um erro de instala\u00e7\u00e3o.<\/li>\n<li>Verifique o alinhamento das tampas e o aperto dos parafusos.<\/li>\n<\/ul>\n<h3>Para excentricidade de fabrica\u00e7\u00e3o<\/h3>\n<ul>\n<li>Casos graves podem exigir o re-alisamento do rotor ou do estator.<\/li>\n<li>Substitua o motor quando isso for economicamente justific\u00e1vel.<\/li>\n<li>Aceite a condi\u00e7\u00e3o se a vibra\u00e7\u00e3o permanecer dentro dos limites aceit\u00e1veis.<\/li>\n<li>Documente-a como valor de refer\u00eancia para compara\u00e7\u00e3o futura.<\/li>\n<\/ul>\n<h3>Para problemas de entreferro<\/h3>\n<ul>\n<li>Verifique a condi\u00e7\u00e3o do rolamento e substitua se estiver desgastado.<\/li>\n<li>Verifique a posi\u00e7\u00e3o axial do rotor.<\/li>\n<li>Inspecione quanto a distor\u00e7\u00e3o da carca\u00e7a ou problemas nas tampas.<\/li>\n<li>Me\u00e7a o entreferro real onde for acess\u00edvel.<\/li>\n<\/ul>\n<p>A frequ\u00eancia de passagem de polo \u00e9, em resumo, um componente de baixa frequ\u00eancia espec\u00edfico do motor, relacionado ao escorregamento, que abre uma janela para a intera\u00e7\u00e3o eletromagn\u00e9tica rotor-estator e a uniformidade do entreferro. Dominar seu c\u00e1lculo, reconhecer suas assinaturas de bandas laterais e ler suas tend\u00eancias de amplitude permite que um engenheiro diagnostique falhas eletromagn\u00e9ticas com confian\u00e7a \u2014 e direcione o esfor\u00e7o de manuten\u00e7\u00e3o para o lugar certo, em vez de perseguir uma causa mec\u00e2nica que nunca existiu.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/\">\u2190 Voltar ao \u00cdndice Principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Learn about pole pass frequency (PPF), the vibration frequency generated by rotor interaction with stator poles, diagnostic for air gap eccentricity and electromagnetic issues in motors.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-197","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary\/197","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":2,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary\/197\/revisions"}],"predecessor-version":[{"id":102086,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary\/197\/revisions\/102086"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/media?parent=197"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/categories?post=197"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/tags?post=197"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}