{"id":215934,"date":"2016-03-29T23:25:20","date_gmt":"2016-03-29T23:25:20","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/la-mesure-de-faibles-temperatures-gagne-en-precision\/"},"modified":"2016-03-29T23:25:20","modified_gmt":"2016-03-29T23:25:20","slug":"la-mesure-de-faibles-temperatures-gagne-en-precision","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/la-mesure-de-faibles-temperatures-gagne-en-precision\/","title":{"rendered":"La mesure de faibles temp\u00e9ratures gagne en pr\u00e9cision"},"content":{"rendered":"<p>Les fonctionnalit\u00e9s avanc\u00e9es de la famille MCP990X incluent la mesure de la temp\u00e9rature par diodes distantes avec une correction d\u2019erreur de la r\u00e9sistance qui compense les chutes de tension caus\u00e9es par les connecteurs et la longueur des pistes sur la carte, permettant ainsi d\u2018effectuer des relev\u00e9s pr\u00e9cis jusqu\u2019\u00e0 50&nbsp;cm de distance par rapport au circuit. Le bruit inject\u00e9 dans le syst\u00e8me, caus\u00e9 par des composants tels que les convertisseurs DC-DC et les onduleurs de r\u00e9tro-\u00e9clairage, est \u00e9galement minimis\u00e9 gr\u00e2ce \u00e0 un filtre \u00e0 saut de fr\u00e9quence d&rsquo;\u00e9chantillonnage, ce qui facilite l\u2019installation et le placement des composants. Ces caract\u00e9ristiques, combin\u00e9es au choix de la surveillance de la temp\u00e9rature \u00e0 2, 3 ou 4 canaux, offrent un plus large \u00e9ventail de possibilit\u00e9s de mesure pour un syst\u00e8me tout en utilisant un seul CI.<\/p>\n<p>Les options de bo\u00eetiers compacts occupent moins d\u2019espace sur la carte et permettent des solutions syst\u00e8me plus petites ainsi qu\u2019une meilleure conception du produit pour les applications sensibles \u00e0 la temp\u00e9rature, comme le bo\u00eetier 2&nbsp;x&nbsp;2&nbsp;mm du capteur de temp\u00e9rature \u00e0 deux canaux MCP9902. Ce CI constitue le capteur de temp\u00e9rature le plus petit du portefeuille actuel de Microchip et est 33&nbsp;% plus petit que la g\u00e9n\u00e9ration pr\u00e9c\u00e9dente de capteurs de temp\u00e9rature doubles. En outre, un bo\u00eetier de 3&nbsp;x&nbsp;3&nbsp;mm est disponible pour les capteurs de temp\u00e9rature MCP9903 \u00e0 3 canaux et MCP9904 \u00e0 4 canaux.<\/p>\n<p>Microchip pr\u00e9sente \u00e9galement la carte d\u2019\u00e9valuation pour MCP9902 (ADM00615), permettant le d\u00e9veloppement avec les capteurs basse temp\u00e9rature.<\/p>\n<p><a href=\"http:\/\/www.microchip.com\/MCP990x\">www.microchip.com\/MCP990x<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Microchip annonce le lancement de la famille de circuits de capteurs de temp\u00e9rature SMBus (System Management Bus) MCP990X, qui sont con\u00e7us pour la surveillance de jusqu\u2019\u00e0 quatre canaux sur les applications en milieu froid, en ext\u00e9rieur et en milieu industriel \u00e0 basse temp\u00e9rature, allant des cong\u00e9lateurs et r\u00e9frig\u00e9rateurs aux stations de base et \u00e9quipements radio d\u00e9port\u00e9s. Avec une pr\u00e9cision maximale de \u00b11 \u00b0C pour les temp\u00e9ratures de diodes externes et internes allant de -40 \u00b0C \u00e0 +65 \u00b0C, ces circuits constituent une solution \u00e9conomique et ultra flexible pour les applications n\u00e9cessitant un degr\u00e9 de pr\u00e9cision suffisant aux basses temp\u00e9ratures.<\/p>\n","protected":false},"author":9,"featured_media":215935,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[910],"domains":[47],"ppma_author":[1141],"class_list":["post-215934","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","tag-sensing-conditioning-fr","domains-electronique-eci"],"acf":[],"yoast_head":"<title>La mesure de faibles temp\u00e9ratures gagne en pr\u00e9cision ...<\/title>\n<meta name=\"description\" content=\"Microchip annonce le lancement de la famille de circuits de capteurs de temp\u00e9rature SMBus (System Management Bus) MCP990X, qui sont con\u00e7us pour la...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/215934\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La mesure de faibles temp\u00e9ratures gagne en pr\u00e9cision\" \/>\n<meta property=\"og:description\" content=\"Microchip annonce le lancement de la famille de circuits de capteurs de temp\u00e9rature SMBus (System Management Bus) MCP990X, qui sont con\u00e7us pour la surveillance de jusqu\u2019\u00e0 quatre canaux sur les applications en milieu froid, en ext\u00e9rieur et en milieu industriel \u00e0 basse temp\u00e9rature, allant des cong\u00e9lateurs et r\u00e9frig\u00e9rateurs aux stations de base et \u00e9quipements radio d\u00e9port\u00e9s. Avec une pr\u00e9cision maximale de \u00b11 \u00b0C pour les temp\u00e9ratures de diodes externes et internes allant de -40 \u00b0C \u00e0 +65 \u00b0C, ces circuits constituent une solution \u00e9conomique et ultra flexible pour les applications n\u00e9cessitant un degr\u00e9 de pr\u00e9cision suffisant aux basses temp\u00e9ratures.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/215934\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2016-03-29T23:25:20+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.eenewseurope.com\/wp-content\/uploads\/import\/default\/files\/sites\/default\/files\/images\/eci5046_microchip_capteurs_mcp9902-3_hi-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1991\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta 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