{"id":174657,"date":"2017-04-26T01:00:00","date_gmt":"2017-04-26T01:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/accelerometres-mems-a-haute-frequence-et-faible-niveau-de-bruit\/"},"modified":"2017-04-26T01:00:00","modified_gmt":"2017-04-26T01:00:00","slug":"accelerometres-mems-a-haute-frequence-et-faible-niveau-de-bruit","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/accelerometres-mems-a-haute-frequence-et-faible-niveau-de-bruit\/","title":{"rendered":"Acc\u00e9l\u00e9rom\u00e8tres MEMS \u00e0 haute fr\u00e9quence et faible niveau de bruit"},"content":{"rendered":"

Historiquement, en comparaison avec les technologies existantes, le niveau de bruit \u00e9lev\u00e9 des acc\u00e9l\u00e9rom\u00e8tres MEMS haute fr\u00e9quence a emp\u00each\u00e9 leur adoption en d\u00e9pit de la fiabilit\u00e9, de la qualit\u00e9 et de la r\u00e9p\u00e9tabilit\u00e9 qui caract\u00e9risent la technologie MEMS. Aujourd\u2019hui, les performances en bruit de ces deux acc\u00e9l\u00e9rom\u00e8tres pour des fr\u00e9quences \u00e9lev\u00e9es correspondent \u00e0 celles de la technologie c\u00e9ramique pi\u00e9zo\u00e9lectrique PZT (Plomb, Zirconium, Titane) actuelle, ce qui en fait une solution convaincante pour le d\u00e9veloppement de produits de surveillance de l\u2019\u00e9tat op\u00e9rationnel des machines. Ils fournissent des donn\u00e9es de haute pr\u00e9cision et de haute qualit\u00e9 aux applications connect\u00e9es \u00e0 l\u2019Internet des objets industriel et permettent d\u2019obtenir une mesure intelligente \u00e0 l\u2019autre bout du r\u00e9seau.<\/p>\n

Ces acc\u00e9l\u00e9rom\u00e8tres affichent une densit\u00e9 de bruit ultra faible pour une large bande passante et une grande dynamique de mesure. Ils sont d\u00e9clin\u00e9s en deux versions avec des plages \u00e0 pleine \u00e9chelle de \u00b1100 g pour l\u2019ADXL1001 et \u00b150 g pour l\u2019ADXL1002. Ce dernier se caract\u00e9rise par une densit\u00e9 de bruit typique de 25 \u03bcg\/Hz1\/2<\/sup> et une sensibilit\u00e9 de 40 mV\/g, contre 30 \u03bcg\/Hz1\/2<\/sup> et 20 mV\/g pour le premier.<\/p>\n

Ces deux composants sont aliment\u00e9s sous une tension unique comprise entre 3,0 V et 5,25 V et disposent de fonctionnalit\u00e9s utiles telles qu\u2019un autotest \u00e9lectrostatique complet et un indicateur de d\u00e9passement de plage. Encapsul\u00e9s en bo\u00eetiers LFCSP-32 de seulement 5 x 5 mm, ils fonctionnent dans une gamme de temp\u00e9rature comprise entre -40 \u00b0C et +125 \u00b0C.<\/p>\n

www.analog.com\/ADXL1001<\/a><\/p>\n

www.analog.com\/ADXL1002<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Sp\u00e9cifiquement con\u00e7us pour les applications charg\u00e9es de surveiller le bon fonctionnement des machines industrielles, les acc\u00e9l\u00e9rom\u00e8tres MEMS \u00e0 haute fr\u00e9quence et \u00e0 faible niveau de bruit ADXL1001 et ADXL1002 d\u2019Analog Devices fournissent des mesures haute r\u00e9solution des vibrations pour d\u00e9tecter de mani\u00e8re anticip\u00e9e d\u2019\u00e9ventuels roulements d\u00e9fectueux ou toute autre source de d\u00e9faillance de ces machines. <\/p>\n","protected":false},"author":9,"featured_media":174658,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[910],"domains":[47],"ppma_author":[1141],"class_list":["post-174657","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","tag-sensing-conditioning-fr","domains-electronique-eci"],"acf":[],"yoast_head":"Acc\u00e9l\u00e9rom\u00e8tres MEMS \u00e0 haute fr\u00e9quence et faible niveau de ...<\/title>\n<meta name=\"description\" content=\"Sp\u00e9cifiquement con\u00e7us pour les applications charg\u00e9es de surveiller le bon fonctionnement des machines industrielles, les acc\u00e9l\u00e9rom\u00e8tres MEMS \u00e0 haute...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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