{"id":93,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/cross-spectrum\/"},"modified":"2026-05-23T22:41:17","modified_gmt":"2026-05-23T22:41:17","slug":"cross-spectrum","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/sk\/glossary\/cross-spectrum\/","title":{"rendered":"\u010co je to kr\u00ed\u017eov\u00e9 spektrum? Dvojkan\u00e1lov\u00e1 frekven\u010dn\u00e1 anal\u00fdza"},"content":{"rendered":"<h1>Pochopenie kr\u00ed\u017eov\u00e9ho spektra<\/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\/sk\/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\/sk\/product\/balanset-1\/\" title=\"Prenosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibr\u00e1ci\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\u00e1 s\u00faprava prenosn\u00e9ho vyva\u017eovacieho zariadenia a analyz\u00e1tora vibr\u00e1ci\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\/sk\/product-category\/devices\/\" rel=\"tag\">Zariadenia<\/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\/sk\/product\/balanset-1\/\" title=\"Prenosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibr\u00e1ci\u00ed Balanset-1A\">Prenosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibr\u00e1ci\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 (ak sa 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/93?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/93?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=\"Prida\u0165 do ko\u0161\u00edka: \u201ePortable balancer &amp; Vibration analyzer Balanset-1A\u201c\" rel=\"nofollow\" data-success_message=\"\u201ePortable balancer &amp; Vibration analyzer Balanset-1A\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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\/sk\/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\/sk\/product\/vibration-sensor\/\" title=\"Sn\u00edma\u010d vibr\u00e1ci\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 vibr\u00e1ci\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\/sk\/product-category\/parts\/\" rel=\"tag\">Diely<\/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\/sk\/product\/vibration-sensor\/\" title=\"Sn\u00edma\u010d vibr\u00e1ci\u00ed\">Sn\u00edma\u010d vibr\u00e1ci\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 (ak sa 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/93?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/93?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=\"Prida\u0165 do ko\u0161\u00edka: \u201eVibration sensor\u201c\" rel=\"nofollow\" data-success_message=\"\u201eVibration sensor\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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\/sk\/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\/sk\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optick\u00fd senzor (laserov\u00fd tachometer)\">\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 tachometer)\" 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\/sk\/product-category\/parts\/\" rel=\"tag\">Diely<\/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\/sk\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optick\u00fd senzor (laserov\u00fd tachometer)\">Optick\u00fd senzor (laserov\u00fd tachometer)<\/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 (ak sa 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/93?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/93?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=\"Prida\u0165 do ko\u0161\u00edka: \u201eOptical Sensor (Laser Tachometer)\u201c\" rel=\"nofollow\" data-success_message=\"\u201eOptical Sensor (Laser Tachometer)\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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\/sk\/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\/sk\/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=\"S\u00faprava na vyva\u017eovanie rotora Vibromera: prenosn\u00e9 puzdro, viackan\u00e1lov\u00fd prevodn\u00edk sign\u00e1lu, ru\u010dn\u00fd analyz\u00e1tor, magnetick\u00e1 z\u00e1klad\u0148a, vibra\u010dn\u00e9 senzory a \u0161pir\u00e1lov\u00e9 k\u00e1ble.\" 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\/sk\/product-category\/devices\/\" rel=\"tag\">Zariadenia<\/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\/sk\/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 (ak sa 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/93?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/93?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=\"Prida\u0165 do ko\u0161\u00edka: \u201eBalanset-4\u201c\" rel=\"nofollow\" data-success_message=\"\u201eBalanset-4\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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\/sk\/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\/sk\/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\u00e1klad\u0148a.\" 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\/sk\/product-category\/parts\/\" rel=\"tag\">Diely<\/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\/sk\/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 (ak sa 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/93?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/93?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=\"Prida\u0165 do ko\u0161\u00edka: \u201eMagnetic Stand Insize-60-kgf\u201c\" rel=\"nofollow\" data-success_message=\"\u201eMagnetic Stand Insize-60-kgf\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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\/sk\/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\/sk\/product\/reflective-tape\/\" title=\"Reflexn\u00e1 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\u00e1 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\/sk\/product-category\/parts\/\" rel=\"tag\">Diely<\/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\/sk\/product\/reflective-tape\/\" title=\"Reflexn\u00e1 p\u00e1ska\">Reflexn\u00e1 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 (ak sa 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/93?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/93?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=\"Prida\u0165 do ko\u0161\u00edka: \u201eReflective tape\u201c\" rel=\"nofollow\" data-success_message=\"\u201eReflective tape\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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\/sk\/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\/sk\/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 s\u00fapravy Balanset-1A s jednotkou rozhrania, sn\u00edma\u010dmi, tachometrom a pr\u00edslu\u0161enstvom\" 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\/sk\/product-category\/devices\/\" rel=\"tag\">Zariadenia<\/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\/sk\/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 (ak sa 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/93?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/93?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=\"Prida\u0165 do ko\u0161\u00edka: \u201eDynamic balancer \u201cBalanset-1A\u201d OEM\u201c\" rel=\"nofollow\" data-success_message=\"\u201eDynamic balancer \u201cBalanset-1A\u201d OEM\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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>Kr\u00ed\u017eov\u00e9 spektrum<\/strong> \u2014 naz\u00fdvan\u00e1 tie\u017e kr\u00ed\u017eov\u00e9 v\u00fdkonov\u00e9 spektrum alebo kr\u00ed\u017eov\u00e1 spektr\u00e1lna hustota \u2014 je frekven\u010dn\u00e9 zn\u00e1zornenie vz\u0165ahu medzi dvoma s\u00fa\u010dasne meran\u00fdmi <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/vibration\/\">vibr\u00e1cie<\/a> sign\u00e1lov. Vypo\u010d\u00edta sa vyn\u00e1soben\u00edm <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/fft\/\">R\u00fdchla premena funkcie (FFT)<\/a> jedn\u00e9ho sign\u00e1lu komplexn\u00fdm konjug\u00e1tom FFT druh\u00e9ho. Ak <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/auto-spectrum\/\">automatick\u00e9 spektrum<\/a> zobrazuje frekven\u010dn\u00e9 zlo\u017eenie jedn\u00e9ho kan\u00e1la, kr\u00ed\u017eov\u00e9 spektrum odha\u013euje, ktor\u00e9 frekvencie s\u00fa <em>common<\/em> na oba sign\u00e1ly a na <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/phase\/\">f\u00e1za<\/a> vz\u0165ah medzi nimi pri ka\u017edej frekvencii.<\/p>\n<p>V\u010faka tomu sa kr\u00ed\u017eov\u00e9 spektrum st\u00e1va matematick\u00fdm z\u00e1kladom pokro\u010dilej viackan\u00e1lovej anal\u00fdzy: <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/transfer-function\/\">prenosov\u00e1 funkcia<\/a> estimation, <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/coherence\/\">koherencia<\/a> anal\u00fdza a prev\u00e1dzkov\u00fd tvar deform\u00e1cie (<a href=\"https:\/\/vibromera.eu\/sk\/glossary\/ods-analysis\/\">ODS<\/a>) sa na \u0148om zakladaj\u00fa v\u0161etky merania. V praxi to in\u017einierovi umo\u017e\u0148uje sledova\u0165, ako sa vibr\u00e1cie \u0161\u00edria kon\u0161trukciou, a identifikova\u0165 vz\u0165ahy pr\u00ed\u010diny a n\u00e1sledku medzi jednotliv\u00fdmi merac\u00edmi bodmi \u2013 \u010do je nie\u010do, \u010do jednokan\u00e1lov\u00fd <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/spectrum\/\">spektrum<\/a> to jednoducho nedok\u00e1\u017eu.<\/p>\n<h2>1. Matematick\u00e1 defin\u00edcia<\/h2>\n<h3>V\u00fdpo\u010det<\/h3>\n<p>Definuj\u00faci vz\u0165ah m\u00e1 kompaktn\u00fa formu:<\/p>\n<blockquote>\n<p><strong>G<sub>xy<\/sub>(f) = X(f) \u00d7 Y*(f)<\/strong><\/p>\n<\/blockquote>\n<ul>\n<li>X(f) je FFT sign\u00e1lu x(t).<\/li>\n<li>Y*(f) je komplexn\u00fd konjug\u00e1t FFT sign\u00e1lu y(t).<\/li>\n<li>V\u00fdsledok m\u00e1 komplexn\u00fa hodnotu a obsahuje ako ve\u013ekos\u0165, tak aj f\u00e1zu.<\/li>\n<\/ul>\n<h3>Komponenty<\/h3>\n<ul>\n<li><strong>Ve\u013ekos\u0165 \u2014 |G<sub>xy<\/sub>(f)|:<\/strong> ukazuje intenzitu frekven\u010dn\u00e9ho obsahu, ktor\u00fd maj\u00fa oba sign\u00e1ly spolo\u010dn\u00e9.<\/li>\n<li><strong>Phase \u2014 \u2220G<sub>xy<\/sub>(f):<\/strong> ukazuje f\u00e1zov\u00fd posun medzi sign\u00e1lmi pri ka\u017edej frekvencii.<\/li>\n<li><strong>Real part:<\/strong> f\u00e1zovo zos\u00faladen\u00e1 zlo\u017eka, resp. zlo\u017eka so spektr\u00e1lnou s\u00favislos\u0165ou.<\/li>\n<li><strong>Imagin\u00e1rna \u010das\u0165:<\/strong> kvadrat\u00farna zlo\u017eka, resp. zlo\u017eka s f\u00e1zov\u00fdm posunom 90\u00b0.<\/li>\n<\/ul>\n<h2>2. Properties<\/h2>\n<p>Tri vlastnosti odli\u0161uj\u00fa kr\u00ed\u017eov\u00e9 spektrum od zn\u00e1meho automatick\u00e9ho spektra a ka\u017ed\u00e1 z nich m\u00e1 pri interpret\u00e1cii svoj v\u00fdznam.<\/p>\n<h3>Je to komplexn\u00e1 hodnota<\/h3>\n<ul>\n<li>Na rozdiel od auto-spektra, ktor\u00e9 je iba re\u00e1lne, je kr\u00ed\u017eov\u00e9 spektrum komplexn\u00e9.<\/li>\n<li>Preto nesie ako amplit\u00fadu, tak aj f\u00e1zu.<\/li>\n<li>Pr\u00e1ve t\u00e1to inform\u00e1cia o f\u00e1ze je k\u013e\u00fa\u010dov\u00e1 \u2013 pr\u00e1ve ona odha\u013euje, ak\u00fd je \u010dasov\u00fd vz\u0165ah medzi t\u00fdmito dvoma sign\u00e1lmi.<\/li>\n<\/ul>\n<h3>Nie je to symetrick\u00e9<\/h3>\n<ul>\n<li>Vo v\u0161eobecnosti G<sub>xy<\/sub>(f) \u2260 G<sub>yx<\/sub>(f).<\/li>\n<li>Poradie je d\u00f4le\u017eit\u00e9 \u2013 v\u00fdsledok z\u00e1vis\u00ed od toho, ktor\u00fd sign\u00e1l pou\u017eijete ako referen\u010dn\u00fd.<\/li>\n<li>Formally, G<sub>yx<\/sub>(f) je komplexn\u00fd konjug\u00e1t G<sub>xy<\/sub>(f), tak\u017ee f\u00e1za jednoducho zmen\u00ed znamienko.<\/li>\n<\/ul>\n<h3>Je potrebn\u00e9 vypo\u010d\u00edta\u0165 priemer<\/h3>\n<ul>\n<li>Jedno spektrum je za\u0161umen\u00e9 a nespo\u013eahliv\u00e9.<\/li>\n<li>Zos\u00fahrnovan\u00edm mnoh\u00fdch kr\u00ed\u017eov\u00fdch spektier sa dosiahne stabiln\u00fd odhad.<\/li>\n<li>Nekorelovan\u00e9 zlo\u017eky \u0161umu sa v priemere vyrovn\u00e1vaj\u00fa na nulu, preto\u017ee ich f\u00e1za sa v jednotliv\u00fdch blokoch men\u00ed n\u00e1hodne.<\/li>\n<li>Komponenty, ktor\u00e9 s\u00fa skuto\u010dne vz\u00e1jomne korelovan\u00e9, si zachov\u00e1vaj\u00fa konzistentn\u00fa f\u00e1zu a navz\u00e1jom sa posil\u0148uj\u00fa \u2013 a pr\u00e1ve preto priemern\u00e9 hodnoty odhad zlep\u0161uj\u00fa.<\/li>\n<\/ul>\n<h2>3. Aplik\u00e1cie<\/h2>\n<h3>V\u00fdpo\u010det prenosovej funkcie<\/h3>\n<p>Toto je t\u00e1 najd\u00f4le\u017eitej\u0161ia aplik\u00e1cia:<\/p>\n<blockquote>\n<p><strong>H(f) = G<sub>xy<\/sub>(f) \/ G<sub>xx<\/sub>(f)<\/strong><\/p>\n<\/blockquote>\n<ul>\n<li>Tu x predstavuje vstup a y v\u00fdstup.<\/li>\n<li>V\u00fdsledok ukazuje, ako syst\u00e9m reaguje na budenie.<\/li>\n<li>Jeho ve\u013ekos\u0165 ud\u00e1va zosilnenie alebo \u00fatlm pri ka\u017edej frekvencii.<\/li>\n<li>Jeho f\u00e1za vykazuje \u010dasov\u00e9 oneskorenie a <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/resonance\/\">rezonancia<\/a> behaviour.<\/li>\n<li>Je to k\u013e\u00fa\u010dov\u00fd ukazovate\u013e <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/modal-analysis\/\">mod\u00e1lna anal\u00fdza<\/a> a \u0161truktur\u00e1lna dynamika, \u00fazko s\u00favisiaca s <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/frequency-response-function\/\">funkcia frekven\u010dnej odozvy<\/a>.<\/li>\n<\/ul>\n<h3>V\u00fdpo\u010det koherencie<\/h3>\n<ul>\n<li>Koherencia je definovan\u00e1 ako <strong>|G<sub>xy<\/sub>|\u00b2 \/ (G<sub>xx<\/sub> \u00d7 G<sub>yy<\/sub>)<\/strong>.<\/li>\n<li>Meria korel\u00e1ciu medzi t\u00fdmito dvoma sign\u00e1lmi pri ka\u017edej frekvencii.<\/li>\n<li>Hodnota sa pohybuje v rozmedz\u00ed od 0 do 1: hodnota 1 znamen\u00e1 dokonal\u00fa korel\u00e1ciu, hodnota 0 znamen\u00e1 \u017eiadnu korel\u00e1ciu.<\/li>\n<li>Overuje kvalitu merania a upozor\u0148uje na miesta, kde je v\u00fdsledok skreslen\u00fd \u0161umom \u2014 \u010do je pri <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/bump-test\/\">n\u00e1razov\u00fd test<\/a> alebo mod\u00e1lny prieskum.<\/li>\n<\/ul>\n<h3>Ur\u010denie f\u00e1zov\u00e9ho vz\u0165ahu<\/h3>\n<ul>\n<li>F\u00e1za z kr\u00ed\u017eov\u00e9ho spektra priamo odha\u013euje \u010dasov\u00e9 oneskorenie alebo rezonanciu.<\/li>\n<li><strong>0\u00b0:<\/strong> sign\u00e1ly s\u00fa vo f\u00e1ze a pohybuj\u00fa sa spolo\u010dne.<\/li>\n<li><strong>180\u00b0:<\/strong> sign\u00e1ly s\u00fa f\u00e1zovo posunut\u00e9 a pohybuj\u00fa sa v protismere.<\/li>\n<li><strong>90\u00b0:<\/strong> kvadrat\u00fara, \u010do nazna\u010duje rezonanciu alebo \u010disto \u010dasov\u00e9 oneskorenie.<\/li>\n<li>Toto je diagnostick\u00fd z\u00e1klad pre <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/mode-shape\/\">tvary m\u00f3du<\/a> a na sledovanie prenosu vibr\u00e1ci\u00ed.<\/li>\n<\/ul>\n<h3>Potla\u010denie spolo\u010dn\u00e9ho re\u017eimu<\/h3>\n<ul>\n<li>Kr\u00ed\u017eov\u00e9 spektrum izoluje frekven\u010dn\u00e9 zlo\u017eky, ktor\u00e9 s\u00fa spolo\u010dn\u00e9 pre oba kan\u00e1ly.<\/li>\n<li>Nekorelovan\u00fd \u0161um sa eliminuje prostredn\u00edctvom v\u00fdpo\u010dtu priemeru.<\/li>\n<li>Skuto\u010dn\u00e9, spolo\u010dn\u00e9 zlo\u017eky sign\u00e1lu vystupuj\u00fa z pozadia.<\/li>\n<li>Praktick\u00fdm pr\u00ednosom je lep\u0161\u00ed pomer sign\u00e1lu k \u0161umu.<\/li>\n<\/ul>\n<h2>4. Praktick\u00e9 scen\u00e1re merania<\/h2>\n<p>Abstraktn\u00e1 predstava sa st\u00e1va konkr\u00e9tnou v okamihu, ke\u010f sa dva senzory namontuj\u00fa na skuto\u010dn\u00fd stroj. T\u00fato v\u00fdhodu ilustruj\u00fa tri be\u017en\u00e9 konfigur\u00e1cie.<\/p>\n<h3>Porovnanie lo\u017e\u00edsk<\/h3>\n<ul>\n<li>Sign\u00e1l X: vibr\u00e1cie na lo\u017eisku 1. Sign\u00e1l Y: vibr\u00e1cie na lo\u017eisku 2.<\/li>\n<li>Kr\u00ed\u017eov\u00e9 spektrum zn\u00e1zor\u0148uje frekvencie, ktor\u00e9 p\u00f4sobia na obe lo\u017eisk\u00e1 s\u00fa\u010dasne.<\/li>\n<li>T\u00fdm sa odl\u00ed\u0161i v\u0161eobecn\u00fd probl\u00e9m s\u00favisiaci s rotorom od probl\u00e9mu, ktor\u00fd sa t\u00fdka len jedn\u00e9ho <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/bearing-defects\/\">lo\u017eisko<\/a>.<\/li>\n<\/ul>\n<h3>Anal\u00fdza vstupov a v\u00fdstupov<\/h3>\n<ul>\n<li>Sign\u00e1l X: sila alebo vibr\u00e1cie na vstupe \u2013 spojka alebo lo\u017eisko pohonu.<\/li>\n<li>Sign\u00e1l Y: reakcia na v\u00fdstupe \u2013 lo\u017eisko poh\u00e1\u0148an\u00e9ho zariadenia.<\/li>\n<li>Kr\u00ed\u017eov\u00e9 spektrum odha\u013euje prenosov\u00e9 vlastnosti medzi nimi.<\/li>\n<li>Odvoden\u00e1 prenosov\u00e1 funkcia potom presne kvantifikuje, ako sa vibr\u00e1cie \u0161\u00edria cez <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/coupling-defects\/\">spojka<\/a>.<\/li>\n<\/ul>\n<h3>\u0160truktur\u00e1lny prenos<\/h3>\n<ul>\n<li>Sign\u00e1l X: vibr\u00e1cie lo\u017eiskov\u00e9ho puzdra. Sign\u00e1l Y: vibr\u00e1cie z\u00e1kladov alebo r\u00e1mu.<\/li>\n<li>Kr\u00ed\u017eov\u00e9 spektrum ukazuje, ktor\u00e9 frekvencie skuto\u010dne dosiahnu kon\u0161trukciu.<\/li>\n<li>To sl\u00fa\u017ei ako vod\u00edtko pri rozhodovan\u00ed o izol\u00e1cii alebo tuhostiach a priamo s\u00favis\u00ed s <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/foundation-stiffness\/\">tuhos\u0165 z\u00e1kladov<\/a> a <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/structural-resonance\/\">\u0161truktur\u00e1lna rezonancia<\/a> probl\u00e9my.<\/li>\n<\/ul>\n<h2>5. Interpret\u00e1cia kr\u00ed\u017eov\u00e9ho spektra<\/h2>\n<h3>Vysok\u00e1 amplit\u00fada pri danej frekvencii<\/h3>\n<ul>\n<li>Nazna\u010duje siln\u00fa korel\u00e1ciu medzi sign\u00e1lmi pri danej frekvencii.<\/li>\n<li>Nazna\u010duje spolo\u010dn\u00fd zdroj alebo siln\u00fa v\u00e4zbu medzi t\u00fdmito dvoma miestami.<\/li>\n<li>T\u00e1to zlo\u017eka sa skuto\u010dne nach\u00e1dza v oboch sign\u00e1loch.<\/li>\n<\/ul>\n<h3>N\u00edzka amplit\u00fada pri danej frekvencii<\/h3>\n<ul>\n<li>Nazna\u010duje mal\u00fa korel\u00e1ciu \u2013 slab\u00fa v\u00e4zbu alebo \u017eiadny spolo\u010dn\u00fd zdroj.<\/li>\n<li>T\u00e1to zlo\u017eka sa m\u00f4\u017ee vyskytova\u0165 v jednom sign\u00e1li, ale nie v druhom.<\/li>\n<li>Alebo m\u00f4\u017ee \u00eds\u0165 jednoducho o nekorelovan\u00fd \u0161um z r\u00f4znych zdrojov.<\/li>\n<\/ul>\n<h3>Inform\u00e1cie o f\u00e1ze<\/h3>\n<ul>\n<li><strong>0\u00b0:<\/strong> sign\u00e1ly sa pohybuj\u00fa synchronizovane \u2013 ide o pevn\u00e9 spojenie alebo prev\u00e1dzku pod rezonan\u010dnou frekvenciou.<\/li>\n<li><strong>180\u00b0:<\/strong> sign\u00e1ly sa pohybuj\u00fa v opa\u010dnom smere \u2013 nad rezonanciou alebo cez os symetrie.<\/li>\n<li><strong>90\u00b0:<\/strong> kvadrat\u00fara \u2013 pri rezonancii alebo vypl\u00fdvaj\u00faca z konkr\u00e9tnej geometrie.<\/li>\n<li><strong>F\u00e1za z\u00e1visl\u00e1 od frekvencie:<\/strong> Zmena f\u00e1zy v z\u00e1vislosti od frekvencie odha\u013euje dynamick\u00e9 spr\u00e1vanie kon\u0161trukcie.<\/li>\n<\/ul>\n<h2>6. Pokro\u010dil\u00e9 aplik\u00e1cie<\/h2>\n<h3>Anal\u00fdza viacer\u00fdch vstupov a v\u00fdstupov<\/h3>\n<ul>\n<li>Nieko\u013eko referen\u010dn\u00fdch sign\u00e1lov je sp\u00e1rovan\u00fdch s nieko\u013ek\u00fdmi odozvov\u00fdmi sign\u00e1lmi.<\/li>\n<li>V\u00fdsledkom je kompletn\u00e1 matica kr\u00ed\u017eov\u00fdch spektier.<\/li>\n<li>Identifikuje viacero simult\u00e1nnych prenosov\u00fdch ciest.<\/li>\n<li>Takto sa vyzna\u010duj\u00fa skuto\u010dne komplexn\u00e9 syst\u00e9my.<\/li>\n<\/ul>\n<h3>Prev\u00e1dzkov\u00e9 tvary vych\u00fdlenia<\/h3>\n<ul>\n<li>Meraj\u00fa sa kr\u00ed\u017eov\u00e9 spektr\u00e1 medzi mnoh\u00fdmi merac\u00edmi bodmi v okol\u00ed stroja.<\/li>\n<li>Ich f\u00e1zov\u00e9 vz\u0165ahy ur\u010duj\u00fa charakteristiku vych\u00fdlenia.<\/li>\n<li>Pohyb celej kon\u0161trukcie je potom mo\u017en\u00e9 vizualizova\u0165 a animova\u0165.<\/li>\n<li>Vo v\u00fdsledkoch jasne vynikaj\u00fa rezonan\u010dn\u00e9 m\u00f3dy.<\/li>\n<\/ul>\n<h2>7. Kr\u00ed\u017eov\u00e9 spektrum pri vyva\u017eovan\u00ed v ter\u00e9ne<\/h2>\n<p>Hoci sa pojem \u201ecross-spectrum\u201c sp\u00e1ja predov\u0161etk\u00fdm s mod\u00e1lnou a \u0161truktur\u00e1lnou tvorbou, t\u00e1 ist\u00e1 dvojkan\u00e1lov\u00e1 matematika je z\u00e1kladom ka\u017edodenn\u00e9ho <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/vyvazovanie-pola\/\">vyva\u017eovanie na mieste<\/a>. Prenosn\u00fd dvojkan\u00e1lov\u00fd pr\u00edstroj, ako napr\u00edklad <a href=\"https:\/\/vibromera.eu\/sk\/produkt\/balanset-1\/\">Balanset-1A<\/a> s\u00fa\u010dasne zaznamen\u00e1va vibr\u00e1cie v dvoch rovin\u00e1ch lo\u017e\u00edsk a obidve \u00fadaje porovn\u00e1va s impulzom ot\u00e1\u010dkomera, ktor\u00fd sa vyskytuje raz za ot\u00e1\u010dku, \u010d\u00edm dok\u00e1\u017ee ur\u010di\u0165 amplit\u00fadu a f\u00e1zu zlo\u017eky 1\u00d7 v ka\u017edej rovine a vypo\u010d\u00edta\u0165 vz\u00e1jomn\u00e9 prepojenie <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/influence-coefficient\/\">koeficienty vplyvu<\/a> ktor\u00e9 sp\u00e1jaj\u00fa z\u00e1\u0165a\u017e v jednej rovine s reakciou v druhej. Tento dvojkan\u00e1lov\u00fd vz\u0165ah zalo\u017een\u00fd na f\u00e1zovej referencii je v podstate kr\u00ed\u017eov\u00fdm spektrom zameran\u00fdm na prev\u00e1dzkov\u00fa r\u00fdchlos\u0165 \u2013 a pr\u00e1ve to umo\u017e\u0148uje spr\u00e1vne dvojrovinov\u00e9 vyva\u017eovanie <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/dynamic-balancing\/\">dynamick\u00e9 vyva\u017eovanie<\/a> je mo\u017en\u00e9 na zmontovanom stroji.<\/p>\n<p>Stru\u010dne povedan\u00e9, kr\u00ed\u017eov\u00e9 spektrum roz\u0161iruje frekven\u010dn\u00fa anal\u00fdzu z jedn\u00e9ho kan\u00e1la na viacero kan\u00e1lov, \u010d\u00edm odha\u013euje vz\u0165ahy medzi sign\u00e1lmi, ktor\u00e9 umo\u017e\u0148uj\u00fa v\u00fdpo\u010det prenosovej funkcie, overenie koherencie a pochopenie toho, ako sa vibr\u00e1cie \u0161\u00edria strojom a jeho podperami. Hoci je n\u00e1ro\u010dnej\u0161ie ako autospektrum, je napriek tomu nevyhnutn\u00e9 pre mod\u00e1lne testovanie, dynamiku kon\u0161trukci\u00ed a ak\u00fako\u013evek sofistikovan\u00fa diagnostiku, ktor\u00e1 sa opiera o viacbodov\u00e9 meranie.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/sk\/glossary\/\">\u2190 Sp\u00e4\u0165 na hlavn\u00fd index<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Z\u00edskajte inform\u00e1cie o kr\u00ed\u017eovej spektr\u00e1lnej a frekven\u010dnej anal\u00fdze, ktor\u00e1 sp\u00e1ja dva vibra\u010dn\u00e9 sign\u00e1ly a ukazuje spolo\u010dn\u00fd frekven\u010dn\u00fd obsah a f\u00e1zov\u00e9 vz\u0165ahy, \u010do je nevyhnutn\u00e9 pre anal\u00fdzu prenosovej funkcie a koherencie.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-93","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/glossary\/93","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/glossary\/93\/revisions"}],"predecessor-version":[{"id":101329,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/glossary\/93\/revisions\/101329"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/media?parent=93"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/categories?post=93"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/tags?post=93"}],"curies":[{"name":"pracovn\u00fd list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}