{"id":13316,"date":"2020-09-14T14:30:52","date_gmt":"2020-09-14T12:30:52","guid":{"rendered":"https:\/\/www.laserpoint.eu\/termopilhas\/absorvedores-de-volume\/"},"modified":"2020-09-14T14:30:54","modified_gmt":"2020-09-14T12:30:54","slug":"absorvedores-de-volume","status":"publish","type":"page","link":"https:\/\/new.laserpoint.eu\/pt-br\/tecnologias\/termopilhas\/absorvedores-de-volume\/","title":{"rendered":"Absorvedores de volume"},"content":{"rendered":"<section class=\"wpb-content-wrapper\"><p>[vc_row][vc_column][vc_column_text]<\/p>\n<h2>Absorvedores de volume<\/h2>\n<p>Em lasers que fornecem impulsos de tempo curto ( inferior a microssegundos), o tempo necess\u00e1rio para o calor fluir para longe da \u00e1rea de impacto e ser removido pelo sistema de resfriamento \u00e9 maior do que a dura\u00e7\u00e3o do comprimento do impulso. Um excesso de calor permanece concentrado dentro de uma camada fina na superf\u00edcie do sensor, onde gera um superaquecimento repentino do material absorvente. Acima de um certo n\u00edvel, esse excesso de energia pode causar danos; muitas vezes, causar\u00e1 a abla\u00e7\u00e3o do absorvedor. Para superar as situa\u00e7\u00f5es semelhantes, \u00e9 utilizada a tecnologia de absor\u00e7\u00e3o de volume. A absor\u00e7\u00e3o de volume \u00e9 quando ocorre uma absor\u00e7\u00e3o gradual de radia\u00e7\u00e3o \u00e0 medida que esta penetra no material. A absor\u00e7\u00e3o total \u00e9 obtida em profundidades de 0,5-2mm em vez de em poucos m\u00edcrons: a consequ\u00eancia \u00e9 uma distribui\u00e7\u00e3o mais lenta de energia e um aumento de temperatura local muito menor. V\u00e1rios tipos de vidros e cer\u00e2mica s\u00e3o usados pela Laser Point para cobrir a faixa UV-C (190-250nm) , o UV-A (250-400nm) e o VIS-NIR (absorvedor BB de 400nm a 5\u03bcm). Estes absorvedores podem suportar pot\u00eancias de pico de 100GW\/cm2 e densidades de energia de at\u00e9 30J\/cm2.[\/vc_column_text][vc_single_image image=&#8221;777&#8243; img_size=&#8221;large&#8221; alignment=&#8221;center&#8221; css=&#8221;.vc_custom_1591773807951{padding-top: 20px !important;}&#8221;][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=&#8221;Curvas do limiar de absor\u00e7\u00e3o e dano para cabe\u00e7as de laser pulsadas&#8221; use_theme_fonts=&#8221;yes&#8221;][vc_single_image image=&#8221;599&#8243; img_size=&#8221;large&#8221; alignment=&#8221;center&#8221;][vc_single_image image=&#8221;605&#8243; img_size=&#8221;large&#8221; alignment=&#8221;center&#8221;][vc_single_image image=&#8221;611&#8243; img_size=&#8221;large&#8221; alignment=&#8221;center&#8221;][\/vc_column][\/vc_row]<\/p>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column][vc_column_text] Absorvedores de volume Em lasers que fornecem impulsos de tempo curto ( inferior a microssegundos), o tempo necess\u00e1rio para o calor fluir para longe da \u00e1rea de impacto e ser removido pelo sistema de resfriamento \u00e9 maior do que a dura\u00e7\u00e3o do comprimento do impulso. Um excesso de calor permanece concentrado dentro de uma&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":13304,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Absorvedores de volume - Laserpoint<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Absorvedores de volume - Laserpoint\" \/>\n<meta property=\"og:description\" content=\"[vc_row][vc_column][vc_column_text] Absorvedores de volume Em lasers que fornecem impulsos de tempo curto ( inferior a microssegundos), o tempo necess\u00e1rio para o calor fluir para longe da \u00e1rea de impacto e ser removido pelo sistema de resfriamento \u00e9 maior do que a dura\u00e7\u00e3o do comprimento do impulso. 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