{"id":184575,"date":"2017-01-27T01:00:00","date_gmt":"2017-01-27T01:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/convertisseur-temps-numerique-pour-systemes-de-telemetrie-laser\/"},"modified":"2017-01-27T01:00:00","modified_gmt":"2017-01-27T01:00:00","slug":"convertisseur-temps-numerique-pour-systemes-de-telemetrie-laser","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/convertisseur-temps-numerique-pour-systemes-de-telemetrie-laser\/","title":{"rendered":"Convertisseur temps num\u00e9rique pour syst\u00e8mes de t\u00e9l\u00e9m\u00e9trie laser"},"content":{"rendered":"

Ce composant int\u00e8gre deux convertisseurs temps-num\u00e9rique (TDC) qui peuvent \u00eatre utilis\u00e9s pour mesurer une distance comprise entre 4 cm et plusieurs kilom\u00e8tres \u00e0 l’aide d’une architecture simple, sans avoir recours \u00e0 des FPGA ou des processeurs. Chaque TDC met en \u0153uvre la fonction d’un chronom\u00e8tre et mesure le TOF entre une impulsion de d\u00e9marrage START et jusqu’\u00e0 cinq impulsions d\u2019arr\u00eat STOP. Cette capacit\u00e9 \u00e0 mesurer simultan\u00e9ment et individuellement sur deux paires de broches en utilisant deux TDC int\u00e9gr\u00e9s offre une grande flexibilit\u00e9 de conception pour la mesure du temps. Le dispositif affiche un large intervalle de mesure compris entre 0,25 ns et 8 ms, une haute pr\u00e9cision de 28 ps et une r\u00e9solution \u00e0 un coup de 55 ps (\u00e9quivalent \u00e0 0,825 cm).
\nLorsqu’il est en mode de d\u00e9termination autonome de la moyenne de cycles multiples, le convertisseur peut \u00eatre optimis\u00e9 pour une faible consommation du syst\u00e8me, notamment pour les d\u00e9bitm\u00e8tres aliment\u00e9s par batterie. Dans ce mode, l’h\u00f4te peut passer en mode veille pour \u00e9conomiser l’alimentation et se r\u00e9veiller lorsqu’il est interrompu par le TDC au moment o\u00f9 la s\u00e9quence de mesure se termine.<\/p>\n

Ce circuit est compatible avec le module d’\u00e9valuation TDC7201-ZAX-EVM, \u00e9galement propos\u00e9. Ce module \u00e0 embase BoosterPack, pr\u00eat \u00e0 l’utilisation pour la carte processeur USB MSP430F5529 LaunchPad, comprend deux paires de connecteurs SMA pour les entr\u00e9es START et STOP, plus une interface utilisateur graphique (GUI) conviviale pour modifier les registres, afficher le temps de vol et exporter les donn\u00e9es au format CSV.<\/p>\n

Ce convertisseur temps\u2011num\u00e9rique convient particuli\u00e8rement pour les applications de t\u00e9l\u00e9m\u00e9trie laser par TOF, y compris la surveillance, la navigation, les drones et la robotique, ainsi que pour l’\u00e9vitement de collision dans les v\u00e9hicules autonomes.<\/p>\n

www.mouser.com\/new\/Texas-Instruments\/ti-tdc7201-converter<\/a><\/p>\n

www.mouser.com\/new\/Texas-Instruments\/MSP430F5529 LaunchPad<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

D\u00e9sormais tenu en stock chez Mouser Electronics, le convertisseur temps-num\u00e9rique TDC7201 de Texas Instruments est con\u00e7u pour \u00eatre utilis\u00e9 avec de l’\u00e9quipement de t\u00e9l\u00e9m\u00e9trie \u00e0 ultrasons, laser et radar bas\u00e9 sur la technique du temps de vol (TOF). Les applications TOF \u00e0 base de laser exigent une pr\u00e9cision de l’ordre de la picoseconde et une capacit\u00e9 \u00e0 mesurer les dur\u00e9es tr\u00e8s courtes.<\/p>\n","protected":false},"author":9,"featured_media":184576,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[896],"domains":[47],"ppma_author":[1141],"class_list":["post-184575","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","tag-digitalsignalprocessing-fr","domains-electronique-eci"],"acf":[],"yoast_head":"Convertisseur temps num\u00e9rique pour syst\u00e8mes de t\u00e9l\u00e9m\u00e9trie ...<\/title>\n<meta name=\"description\" content=\"D\u00e9sormais tenu en stock chez Mouser Electronics, le convertisseur temps-num\u00e9rique TDC7201 de Texas Instruments est con\u00e7u pour \u00eatre utilis\u00e9 avec de...\" \/>\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\/184575\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Convertisseur temps num\u00e9rique pour syst\u00e8mes de t\u00e9l\u00e9m\u00e9trie laser\" \/>\n<meta property=\"og:description\" content=\"D\u00e9sormais tenu en stock chez Mouser Electronics, le convertisseur temps-num\u00e9rique TDC7201 de Texas Instruments est con\u00e7u pour \u00eatre utilis\u00e9 avec de l'\u00e9quipement de t\u00e9l\u00e9m\u00e9trie \u00e0 ultrasons, laser et radar bas\u00e9 sur la technique du temps de vol (TOF). Les applications TOF \u00e0 base de laser exigent une pr\u00e9cision de l'ordre de la picoseconde et une capacit\u00e9 \u00e0 mesurer les dur\u00e9es tr\u00e8s courtes.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/184575\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2017-01-27T01:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/sites\/default\/files\/images\/eci8304_mouser_ti_tdc7201.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t<meta property=\"og:image:height\" content=\"292\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Alain Dieul\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" 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