{"id":114392,"date":"2018-07-25T22:31:44","date_gmt":"2018-07-25T22:31:44","guid":{"rendered":"https:\/\/\/des-capteurs-cov-pour-le-controle-de-la-qualite-dair-indoor\/"},"modified":"2018-07-25T22:31:44","modified_gmt":"2018-07-25T22:31:44","slug":"des-capteurs-cov-pour-le-controle-de-la-qualite-dair-indoor","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/des-capteurs-cov-pour-le-controle-de-la-qualite-dair-indoor\/","title":{"rendered":"Des capteurs COV pour le contr\u00f4le de la qualit\u00e9 d\u2019air indoor"},"content":{"rendered":"<p>La mise \u00e0 jour&nbsp;majeure&nbsp;des biblioth\u00e8ques logicielles du CCS801,&nbsp;un circuit int\u00e9gr\u00e9&nbsp;analogique&nbsp;capteur de&nbsp;Compos\u00e9s&nbsp;Organiques&nbsp;Volatils (COV), et du firmware du CCS811,&nbsp;la version digitale du capteur de&nbsp;COV, a permis de faire passer la dur\u00e9e d\u2019initialisation de plus de 48 heures \u00e0 60 minutes. D\u00e9sormais une indication du niveau de qualit\u00e9 de l\u2019air indoor via une valeur relative des VOC totaux (TVOC)&nbsp;ou&nbsp;CO2&nbsp;\u00e9quivalent&nbsp;(eCO2) peut \u00eatre obtenue quasi imm\u00e9diatement apr\u00e8s la mise en route de l\u2019appareil de mesure.&nbsp;Cela signifie que les clients OEM peuvent r\u00e9duire&nbsp;drastiquement&nbsp;voire \u00e9liminer tout processus de rodage en usine et livrer aux utilisateurs un mat\u00e9riel&nbsp;de surveillance de qualit\u00e9 de l\u2019air&nbsp;op\u00e9rationnel d\u00e8s sa mise en route apr\u00e8s&nbsp;d\u00e9ballage.<\/p>\n<p>Les mises \u00e0 jour des performances de la famille CCS8xx concernent aussi les plages de mesure de qualit\u00e9 d\u2019air&nbsp;:&nbsp;<\/p>\n<p>\u2022&nbsp;la valeur maximum eCO2&nbsp;est pass\u00e9e de 8194 ppm \u00e0 32768 ppm<\/p>\n<p>\u2022&nbsp;la valeur maximum eTVOC est pass\u00e9e de 1187 ppb \u00e0 32768 ppb<\/p>\n<p>Cela signifie que les capteurs CCS8xx peuvent \u00eatre utilis\u00e9s dans des appareils tels que filtres ou purificateurs d\u2019air destin\u00e9s \u00e0 des environnements indoor plus pollu\u00e9s.<\/p>\n<p>Le nouveau logiciel donne aussi aux OEM la flexibilit\u00e9 de configurer la valeur de r\u00e9f\u00e9rence d\u2019air pur, sauvegard\u00e9e&nbsp;et&nbsp;restaur\u00e9e quand le capteur&nbsp;CCS8xx&nbsp;est&nbsp;\u00e9teintpuis red\u00e9marr\u00e9 dans un environnement pollu\u00e9.&nbsp;De plus, la fr\u00e9quence de correction automatique de la valeur de r\u00e9f\u00e9rence peut elle aussi \u00eatre programm\u00e9 par l\u2019OEM. Ces fonctionnalit\u00e9s permettent d\u2019adapter le comportement du capteur&nbsp;au plus pr\u00e8s des&nbsp;caract\u00e9ristiques de l\u2019environnement de fonctionnement pr\u00e9vu.<\/p>\n<p>Le nouveau logiciel a \u00e9t\u00e9&nbsp;impl\u00e9ment\u00e9 pour les plateformes CCS801 et CCS811existantes,&nbsp;qui sont&nbsp;largement utilis\u00e9s dans les applications HABA (Home and Building Automation). Ces&nbsp;mat\u00e9riels&nbsp;robustes ont&nbsp;\u00e9t\u00e9 livr\u00e9s en volume dans&nbsp;de nombreuses applications&nbsp;ayant une&nbsp;de dur\u00e9e de vie 10 ans et plus.<\/p>\n<p>En parall\u00e8le ams a men\u00e9 des tests exhaustifs sur la famille CCS8xx&nbsp;lors d\u2019une&nbsp;exposition&nbsp;aux siloxanes HDMS et D5, couramment utilis\u00e9s dans les produits de soin personnel et d\u2019entretien m\u00e9nager, pour en d\u00e9montrer la fiabilit\u00e9&nbsp;sur le&nbsp;long terme et la grande r\u00e9sistance \u00e0 la contamination a\u00e9rienne par siloxanes.<\/p>\n<p>Le test HDMS a \u00e9t\u00e9 r\u00e9alis\u00e9 selon le standard ISO26142. Le test D5 impliquait l\u2019exposition \u00e0 une concentration de 250 ppm pendant 200 heures. Les r\u00e9sultats&nbsp;des tests indiquent&nbsp;que les performances et la sensibilit\u00e9 relative des capteurs CCS8xx&nbsp;sont conformes aux tol\u00e9rances&nbsp;requises&nbsp;par toutes les normes pertinentes. Les capteurs CCS8xx d\u2019ams constituent donc toujours une option fiable pour les OEM exigeant une r\u00e9sistance \u00e9lev\u00e9e aux siloxanes dans des environnements indoor typiques.<\/p>\n<p>\u201cSelon l\u2019agence de protection de l\u2019environnement&nbsp;Americaine,&nbsp;il est de plus en plus \u00e9vident que l\u2019air indoor peut \u00eatre plus pollu\u00e9 et exposer \u00e0 un risque sanitaire plus \u00e9lev\u00e9 que la pollution ext\u00e9rieure,\u201d a d\u00e9clar\u00e9 Paul Wilson, Directeur Marketing pour les capteurs environnementaux chez ams. \u00abComme les gens passent&nbsp;en moyenne 90&nbsp;% de leur temps en&nbsp;int\u00e9rieur,&nbsp;l&rsquo;utilisation d&rsquo;appareils bas\u00e9s sur les CCS801 ou CCS811 surveillant la qualit\u00e9 de l&rsquo;air \u00e0 la maison, au travail ou en voiture pr\u00e9sente d&rsquo;\u00e9normes avantages sur le plan de la sant\u00e9 et du confort.\u00bb<\/p>\n<p>Des kits d\u2019\u00e9valuation sont disponibles.&nbsp;<\/p>\n<p><a href=\"http:\/\/www.ams.com\/Air-Quality-Sensors%20\/h\">www.ams.com\/Air-Quality-Sensors<\/a>.&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ams vient d\u2019optimiser les caract\u00e9ristiques de sa famille de circuits int\u00e9gr\u00e9s capteurs de gaz CCS8xx afin de r\u00e9duire leur temps d\u2019initialisation et d\u2019am\u00e9liorer la performance des applications de surveillance de qualit\u00e9 d\u2019air indoor. <\/p>\n","protected":false},"author":9,"featured_media":114393,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1141],"class_list":["post-114392","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Des capteurs COV pour le contr\u00f4le de la qualit\u00e9 d\u2019air indoor 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