{"id":159025,"date":"2021-07-21T09:10:58","date_gmt":"2021-07-21T07:10:58","guid":{"rendered":"https:\/\/bandelin.com\/?post_type=docs&#038;p=159025"},"modified":"2025-09-30T00:50:17","modified_gmt":"2025-09-29T22:50:17","password":"","slug":"ultralyd-en-kort-introduktion","status":"publish","type":"docs","link":"https:\/\/bandelin.com\/da\/docs\/wissen\/ultraschall-eine-kurze-einfuehrung\/","title":{"rendered":"Ultralyd - en kort introduktion"},"content":{"rendered":"<div class=\"product\"><div class=\"product\">\n<p>Ultralyd bruges inden for videnskab og teknologi til en lang r\u00e6kke form\u00e5l. De fysiske principper for ultralyd er kort beskrevet nedenfor.&nbsp;<\/p>\n\n\n\n<p>N\u00e5r ultralyd med en frekvens p\u00e5 20 kHz og en lydintensitet p\u00e5 0,1 W\/cm\u00b2 p\u00e5f\u00f8res flydende medier, skabes der sm\u00e5 kavitationsbobler p\u00e5 grund af den st\u00e6rke vekslende belastning. Disse sm\u00e5 hulrum med lavt indre tryk skabes p\u00e5 grund af mediets inerti og de inducerede mekaniske vibrationer. P\u00e5 grund af det ydre tryk i mediet imploderer de ustabile bobler efter en kort v\u00e6kstperiode under h\u00f8je tryk- og temperaturtoppe. Dette resulterer i h\u00f8je forskydningskr\u00e6fter ved gr\u00e6nselaget. Denne effekt opst\u00e5r is\u00e6r p\u00e5 luftbobler eller snavspartikler, de s\u00e5kaldte kavitationskerner. Kavitation i vand udl\u00f8ser den akustisk m\u00e6rkbare st\u00f8j fra h\u00f8jtydende ultralydsenheder.<\/p>\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"lyte-wrapper fourthree\" title=\"Reng\u00f8ring med et SONOREX-ultralydsbad fra BANDELIN\" style=\"width:420px;max-width:100%;margin:5px;\"><div class=\"lyMe\" id=\"WYL_h0d6_Ur5poE\" itemprop=\"video\" itemscope itemtype=\"https:\/\/schema.org\/VideoObject\"><div><meta itemprop=\"thumbnailUrl\" content=\"https:\/\/bandelin.com\/wp-content\/plugins\/wp-youtube-lyte\/lyteCache.php?origThumbUrl=https%3A%2F%2Fi.ytimg.com%2Fvi%2Fh0d6_Ur5poE%2Fhqdefault.jpg\" \/><meta itemprop=\"embedURL\" content=\"https:\/\/www.youtube.com\/embed\/h0d6_Ur5poE\" \/><meta itemprop=\"duration\" content=\"PT2M7S\" \/><meta itemprop=\"uploadDate\" content=\"2015-02-04T16:33:08Z\" \/><\/div><div id=\"lyte_h0d6_Ur5poE\" data-src=\"https:\/\/bandelin.com\/wp-content\/plugins\/wp-youtube-lyte\/lyteCache.php?origThumbUrl=https%3A%2F%2Fi.ytimg.com%2Fvi%2Fh0d6_Ur5poE%2Fhqdefault.jpg\" class=\"pL\"><div class=\"tC\"><div class=\"tT\" itemprop=\"name\">Reng\u00f8ring med et SONOREX-ultralydsbad fra BANDELIN<\/div><\/div><button tabindex=\"0\" class=\"play\"><\/button><div class=\"ctrl\"><div class=\"Lctrl\"><\/div><div class=\"Rctrl\"><\/div><\/div><\/div><noscript><a href=\"https:\/\/youtu.be\/h0d6_Ur5poE\" rel=\"nofollow\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/bandelin.com\/wp-content\/plugins\/wp-youtube-lyte\/lyteCache.php?origThumbUrl=https%3A%2F%2Fi.ytimg.com%2Fvi%2Fh0d6_Ur5poE%2F0.jpg\" alt=\"Reng\u00f8ring med et SONOREX-ultralydsbad fra BANDELIN\" width=\"420\" height=\"295\" \/><br \/>Se denne video p\u00e5 YouTube<\/a><\/noscript><meta itemprop=\"description\" content=\"Weitere Informationen zu den passenden Ultraschallb\u00e4dern und Pr\u00e4paraten finden Sie unter www.bandelin.com\"><\/div><\/div><div class=\"lL\" style=\"max-width:100%;width:420px;margin:5px;\"><br\/><span class=\"lyte_disclaimer\">Ved at afspille videoerne accepterer du YouTubes privatlivspolitik.<\/span><\/div><figcaption><\/figcaption><\/figure><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Ultraschall wird in Wissenschaft und Technik f\u00fcr die vielf\u00e4ltigsten Anwendungen eingesetzt. Im Folgenden werden kurz die physikalischen Grundlagen des Ultraschalls beschrieben.&nbsp; Bei der Einwirkung von Ultraschall ab einer Frequenz von 20 kHz und einer Schallintensit\u00e4t von 0,1 W\/cm\u00b2 auf fl\u00fcssige Medien entstehen aufgrund der starken Wechselbeanspruchung kleinste Kavitationsblasen. Diese feinsten Hohlr\u00e4ume mit geringem Innendruck entstehen [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"doc_category":[1926],"doc_tag":[],"class_list":["post-159025","docs","type-docs","status-publish","hentry","doc_category-wissen"],"acf":[],"year_month":"2026-10","word_count":139,"total_views":"60","reactions":{"happy":"0","normal":"0","sad":"0"},"author_info":{"name":"J Bandelin","author_nicename":"jobandelin","author_url":"https:\/\/bandelin.com\/da\/author\/jobandelin\/"},"doc_category_info":[{"term_name":"Grundlagenwissen Kavitation","term_url":"https:\/\/bandelin.com\/da\/docs-category\/wissen\/"}],"doc_tag_info":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ultraschall \u2013 kurze Einf\u00fchrung &amp; Grundlagen | BANDELIN<\/title>\n<meta name=\"description\" content=\"Informationen Sie sich \u00fcber Ultraschall - eine kurze Einf\u00fchrung | Hochwertige Ultraschallb\u00e4der f\u00fcr Medizin und Industrie von Bandelin Electronic seit 1955.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/bandelin.com\/da\/dokumenter\/vide\/ultralyd-en-kort-introduktion\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ultraschall \u2013 kurze Einf\u00fchrung &amp; Grundlagen | BANDELIN\" \/>\n<meta property=\"og:description\" content=\"Informationen Sie sich \u00fcber Ultraschall - eine kurze Einf\u00fchrung | Hochwertige Ultraschallb\u00e4der f\u00fcr Medizin und Industrie von Bandelin Electronic seit 1955.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/bandelin.com\/da\/dokumenter\/vide\/ultralyd-en-kort-introduktion\/\" \/>\n<meta property=\"og:site_name\" content=\"BANDELIN electronic GmbH &amp; Co. KG\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/de-de.facebook.com\/bandelin.electronic\/\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-29T22:50:17+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimeret l\u00e6setid\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minut\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/bandelin.com\\\/docs\\\/wissen\\\/ultraschall-eine-kurze-einfuehrung\\\/\",\"url\":\"https:\\\/\\\/bandelin.com\\\/docs\\\/wissen\\\/ultraschall-eine-kurze-einfuehrung\\\/\",\"name\":\"Ultraschall \u2013 kurze Einf\u00fchrung & Grundlagen | BANDELIN\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/bandelin.com\\\/#website\"},\"datePublished\":\"2021-07-21T07:10:58+00:00\",\"dateModified\":\"2025-09-29T22:50:17+00:00\",\"description\":\"Informationen Sie sich \u00fcber Ultraschall - eine kurze Einf\u00fchrung | Hochwertige Ultraschallb\u00e4der f\u00fcr Medizin und Industrie von Bandelin Electronic seit 1955.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/bandelin.com\\\/docs\\\/wissen\\\/ultraschall-eine-kurze-einfuehrung\\\/#breadcrumb\"},\"inLanguage\":\"da-DK\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/bandelin.com\\\/docs\\\/wissen\\\/ultraschall-eine-kurze-einfuehrung\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/bandelin.com\\\/docs\\\/wissen\\\/ultraschall-eine-kurze-einfuehrung\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Startseite\",\"item\":\"https:\\\/\\\/bandelin.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Docs\",\"item\":\"https:\\\/\\\/bandelin.com\\\/docs\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Ultraschall &#8211; eine kurze Einf\u00fchrung\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/bandelin.com\\\/#website\",\"url\":\"https:\\\/\\\/bandelin.com\\\/\",\"name\":\"BANDELIN electronic GmbH & Co. KG\",\"description\":\"Ultraschall seit 1955\",\"publisher\":{\"@id\":\"https:\\\/\\\/bandelin.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/bandelin.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"da-DK\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/bandelin.com\\\/#organization\",\"name\":\"BANDELIN electronic GmbH & Co. KG\",\"url\":\"https:\\\/\\\/bandelin.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"da-DK\",\"@id\":\"https:\\\/\\\/bandelin.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"BANDELIN electronic GmbH & Co. KG\"},\"image\":{\"@id\":\"https:\\\/\\\/bandelin.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/de-de.facebook.com\\\/bandelin.electronic\\\/\",\"https:\\\/\\\/www.instagram.com\\\/bandelin_ultrasonic\\\/?hl=de\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/bandelin-electronic-gmbh-amp-co-kg\",\"https:\\\/\\\/www.youtube.com\\\/channel\\\/UC5wTNrNxkwMmX-WzysQqw3g\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Ultralyd - kort introduktion og grundprincipper | BANDELIN","description":"Find ud af mere om ultralyd - en kort introduktion | Ultralydsbade af h\u00f8j kvalitet til medicin og industri fra Bandelin Electronic siden 1955.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/bandelin.com\/da\/dokumenter\/vide\/ultralyd-en-kort-introduktion\/","og_locale":"da_DK","og_type":"article","og_title":"Ultraschall \u2013 kurze Einf\u00fchrung & Grundlagen | BANDELIN","og_description":"Informationen Sie sich \u00fcber Ultraschall - eine kurze Einf\u00fchrung | Hochwertige Ultraschallb\u00e4der f\u00fcr Medizin und Industrie von Bandelin Electronic seit 1955.","og_url":"https:\/\/bandelin.com\/da\/dokumenter\/vide\/ultralyd-en-kort-introduktion\/","og_site_name":"BANDELIN electronic GmbH &amp; Co. KG","article_publisher":"https:\/\/de-de.facebook.com\/bandelin.electronic\/","article_modified_time":"2025-09-29T22:50:17+00:00","twitter_card":"summary_large_image","twitter_misc":{"Estimeret l\u00e6setid":"1 minut"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/bandelin.com\/docs\/wissen\/ultraschall-eine-kurze-einfuehrung\/","url":"https:\/\/bandelin.com\/docs\/wissen\/ultraschall-eine-kurze-einfuehrung\/","name":"Ultralyd - kort introduktion og grundprincipper | BANDELIN","isPartOf":{"@id":"https:\/\/bandelin.com\/#website"},"datePublished":"2021-07-21T07:10:58+00:00","dateModified":"2025-09-29T22:50:17+00:00","description":"Find ud af mere om ultralyd - en kort introduktion | Ultralydsbade af h\u00f8j kvalitet til medicin og industri fra Bandelin Electronic siden 1955.","breadcrumb":{"@id":"https:\/\/bandelin.com\/docs\/wissen\/ultraschall-eine-kurze-einfuehrung\/#breadcrumb"},"inLanguage":"da-DK","potentialAction":[{"@type":"ReadAction","target":["https:\/\/bandelin.com\/docs\/wissen\/ultraschall-eine-kurze-einfuehrung\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/bandelin.com\/docs\/wissen\/ultraschall-eine-kurze-einfuehrung\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Startseite","item":"https:\/\/bandelin.com\/"},{"@type":"ListItem","position":2,"name":"Docs","item":"https:\/\/bandelin.com\/docs\/"},{"@type":"ListItem","position":3,"name":"Ultraschall &#8211; eine kurze Einf\u00fchrung"}]},{"@type":"WebSite","@id":"https:\/\/bandelin.com\/#website","url":"https:\/\/bandelin.com\/","name":"BANDELIN electronic GmbH &amp; Co. KG","description":"Ultralyd siden 1955","publisher":{"@id":"https:\/\/bandelin.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/bandelin.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"da-DK"},{"@type":"Organization","@id":"https:\/\/bandelin.com\/#organization","name":"BANDELIN electronic GmbH &amp; Co. KG","url":"https:\/\/bandelin.com\/","logo":{"@type":"ImageObject","inLanguage":"da-DK","@id":"https:\/\/bandelin.com\/#\/schema\/logo\/image\/","url":"","contentUrl":"","caption":"BANDELIN electronic GmbH & Co. KG"},"image":{"@id":"https:\/\/bandelin.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/de-de.facebook.com\/bandelin.electronic\/","https:\/\/www.instagram.com\/bandelin_ultrasonic\/?hl=de","https:\/\/www.linkedin.com\/company\/bandelin-electronic-gmbh-amp-co-kg","https:\/\/www.youtube.com\/channel\/UC5wTNrNxkwMmX-WzysQqw3g"]}]}},"_links":{"self":[{"href":"https:\/\/bandelin.com\/da\/wp-json\/wp\/v2\/docs\/159025","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bandelin.com\/da\/wp-json\/wp\/v2\/docs"}],"about":[{"href":"https:\/\/bandelin.com\/da\/wp-json\/wp\/v2\/types\/docs"}],"author":[{"embeddable":true,"href":"https:\/\/bandelin.com\/da\/wp-json\/wp\/v2\/users\/3"}],"version-history":[{"count":0,"href":"https:\/\/bandelin.com\/da\/wp-json\/wp\/v2\/docs\/159025\/revisions"}],"wp:attachment":[{"href":"https:\/\/bandelin.com\/da\/wp-json\/wp\/v2\/media?parent=159025"}],"wp:term":[{"taxonomy":"doc_category","embeddable":true,"href":"https:\/\/bandelin.com\/da\/wp-json\/wp\/v2\/doc_category?post=159025"},{"taxonomy":"doc_tag","embeddable":true,"href":"https:\/\/bandelin.com\/da\/wp-json\/wp\/v2\/doc_tag?post=159025"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}