{"id":110814,"date":"2018-09-04T22:31:44","date_gmt":"2018-09-04T22:31:44","guid":{"rendered":"https:\/\/\/can-sigma-delta-pour-une-solution-dacquisition-de-donnees-configurable-et-reutilisable\/"},"modified":"2018-09-04T22:31:44","modified_gmt":"2018-09-04T22:31:44","slug":"can-sigma-delta-pour-une-solution-dacquisition-de-donnees-configurable-et-reutilisable","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/can-sigma-delta-pour-une-solution-dacquisition-de-donnees-configurable-et-reutilisable\/","title":{"rendered":"CAN sigma-delta pour une solution d\u2019acquisition de donn\u00e9es configurable et r\u00e9utilisable"},"content":{"rendered":"

Ce circuit permet de r\u00e9aliser des solutions d\u2019instrumentation basse consommation con\u00e7ues pour surveiller l\u2019\u00e9tat op\u00e9rationnel des \u00e9quipements de maintenance pr\u00e9dictive (mesure des vibrations et de la qualit\u00e9 de l\u2019\u00e9nergie), de tests audio et acoustiques, de sant\u00e9 structurelle et de tests \u00e9lectriques automatiques et modulaires. Ce convertisseur convient \u00e9galement aux appareilsm\u00e9dicaux, tels que les \u00e9lectroenc\u00e9phalogrammes (EEG), \u00e9lectromyogrammes (EMG) et \u00e9lectrocardiogrammes (ECG). <\/p>\n

Formant une solution unique \u00e0 la fois configurable et r\u00e9utilisable, le convertisseur AD7768-1 \u00e9tablit une nouvelle r\u00e9f\u00e9rence en mati\u00e8re de performances combin\u00e9es AC et DC. Cette fonctionnalit\u00e9 permet aux concepteurs d\u2019instruments et de syst\u00e8mes industriels de r\u00e9utiliser la cha\u00eene d\u2019acquisition \u00e9l\u00e9mentaire dans diff\u00e9rentes variantes de mesure, dans des applications avec isolation voie-\u00e0-voie ou non. Un seul et unique convertisseur est utilis\u00e9 pour les diff\u00e9rents \u00e9quipements, crit\u00e8res de performances et plages de mesure, ce qui minimise le nombre de topologies de r\u00e9f\u00e9rence n\u00e9cessaires tout en r\u00e9duisant les co\u00fbts et les d\u00e9lais de mise sur le march\u00e9. <\/p>\n

Le convertisseur AD7768-1 comprend un modulateur \u01a9\u0394 et un filtre num\u00e9rique pour mesurer les signaux alternatifs et continus de fa\u00e7on fid\u00e8le et synchronis\u00e9e dans le domaine de l\u2019instrumentation. Le haut d\u00e9bit et la bande passante d\u2019entr\u00e9e (110,8 kHz) contribuent \u00e0 r\u00e9duire le co\u00fbt et la dur\u00e9e des tests, am\u00e9liorant ainsi la qualit\u00e9 et l\u2019int\u00e9grit\u00e9 des mesures effectu\u00e9es. <\/p>\n

L\u2019AD7768-1 dispose de fonctions de filtrage num\u00e9rique programmable \u00e9tendues qui permettent de r\u00e9pondre \u00e0 de multiples exigences syst\u00e8me concernant les mesures de haute pr\u00e9cision dans le domaine fr\u00e9quentiel et la mesure en entr\u00e9e continue avec un faible temps de latence. Ce convertisseur analogique\/num\u00e9rique int\u00e8gre \u00e9galement un tampon de pr\u00e9charge sur chaque entr\u00e9e analogique, ce qui simplifie de mani\u00e8re consid\u00e9rable la conception des circuits de pilotage externes. L\u2019entr\u00e9e r\u00e9f\u00e9rence \u00e0 haute imp\u00e9dance est adapt\u00e9e pour tout type de r\u00e9f\u00e9rence utilis\u00e9e en externe.<\/p>\n

analog.com\/AD7768-1BCPZ<\/a><\/p>\n

Circuit int\u00e9gr\u00e9 de comptage \u00e0 auto\u00e9talonnage <\/a><\/h3>\n

Un contr\u00f4leur de PSE aliment\u00e9 sur Ethernet conforme IEEE 802.3bt<\/a><\/h3>\n

R\u00e9gulateur abaisseur, synchrone avec rendement de 95% \u00e0 2MHz<\/a><\/h3>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Le convertisseur analogique\/num\u00e9rique sigma-delta 24 bits monovoie AD7768-1 d\u2019Analog Devices combine basse consommation et performances \u00e9lev\u00e9es pour les op\u00e9rations de conversion de signaux alternatifs (AC) et continus (DC). <\/p>\n","protected":false},"author":9,"featured_media":110815,"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-110814","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"CAN sigma-delta pour une solution d\u2019acquisition de donn\u00e9es c...<\/title>\n<meta name=\"description\" content=\"Le convertisseur analogique\/num\u00e9rique sigma-delta 24 bits monovoie AD7768-1 d\u2019Analog Devices combine basse consommation et performances \u00e9lev\u00e9es 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