{"id":118526,"date":"2018-06-13T19:50:44","date_gmt":"2018-06-13T19:50:44","guid":{"rendered":"https:\/\/\/lem-etend-sa-gamme-de-capteurs-de-haute-precision\/"},"modified":"2018-06-13T19:50:44","modified_gmt":"2018-06-13T19:50:44","slug":"lem-etend-sa-gamme-de-capteurs-de-haute-precision","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/lem-etend-sa-gamme-de-capteurs-de-haute-precision\/","title":{"rendered":"LEM \u00e9tend sa gamme de capteurs de haute pr\u00e9cision"},"content":{"rendered":"

Ces applications incluent : les \u00e9quipements de test pour les applications industrielles traditionnelles, les \u00e9quipements m\u00e9dicaux, les contr\u00f4leurs de moteurs de pr\u00e9cision et les compteurs d\u2019\u00e9nergie.<\/p>\n

Les innovations brevet\u00e9es par LEM sont au c\u0153ur de ce nouveau capteur, r\u00e9alisant un maximum de traitement du signal dans le domaine num\u00e9rique et proposant une nouvelle approche de l\u2019architecture de la technologie Fluxgate pour l\u2019annulation des ondulations r\u00e9siduelles provenant de la fr\u00e9quence de pilotage du d\u00e9tecteur Fluxgate. Ces am\u00e9liorations ont permis la conception d’un capteur compact, qui maintient son excellente pr\u00e9cision sur une plus large plage de temp\u00e9rature, avec un niveau de bruit r\u00e9duit par rapport \u00e0 la g\u00e9n\u00e9ration pr\u00e9c\u00e9dente<\/p>\n

En permettant le traitement du signal dans le domaine num\u00e9rique, il b\u00e9n\u00e9ficie d\u2019une immunit\u00e9 totale aux effets de la temp\u00e9rature, aux interf\u00e9rences et aux variations de tension d’alimentation apr\u00e8s le convertisseur A\/N. En particulier, l\u2019offset et la d\u00e9rive d\u2019offset ont \u00e9t\u00e9 am\u00e9lior\u00e9s.<\/p>\n

Le processeur de signal num\u00e9rique a \u00e9galement \u00e9t\u00e9 utilis\u00e9 pour r\u00e9duire les interf\u00e9rences ou les ondulations provenant du signal de pilotage du d\u00e9tecteur Fluxgate \u00e0 une fr\u00e9quence fixe, ce qui a permis une r\u00e9duction des harmoniques de plus hautes fr\u00e9quences.<\/p>\n

Le reste des interf\u00e9rences a \u00e9t\u00e9 \u00e9limin\u00e9 en pilotant un \u00ab enroulement de compensation des ondulations \u00bb, dont l\u2019amplitude et la phase sont ajust\u00e9es pendant la calibration de chaque capteur.<\/p>\n

Apr\u00e8s la calibration, l\u2019ondulation cr\u00eate-cr\u00eate restante est inf\u00e9rieure \u00e0 34 ppm, par rapport \u00e0 la sortie du capteur pleine \u00e9chelle, sur l\u2019ensemble de la plage de temp\u00e9rature de fonctionnement allant de -40 \u00b0C \u00e0 +85 \u00b0C.<\/p>\n

Gr\u00e2ce \u00e0 ces innovations, le mod\u00e8le IN 1000-S affiche d’excellentes performances sur toute la plage de temp\u00e9rature \u00e9tendue, offrant une lin\u00e9arit\u00e9 ultra pr\u00e9cise et une faible d\u00e9rive d\u2019offset sur la plage de temp\u00e9rature, respectivement meilleures que 3 ppm et 19,5 ppm.<\/p>\n

Le capteur IN 1000-S est con\u00e7u pour fonctionner avec une alimentation bipolaire DC +\/- 15 V et est compatible avec les conducteurs primaires ronds jusqu\u2019\u00e0 38,2 mm de diam\u00e8tre. Outre sa sortie de courant normale, le capteur dispose d\u2019une sortie suppl\u00e9mentaire indiquant l\u2019\u00e9tat du capteur (niveaux de sortie haut ou bas) et d\u2019une LED externe signalant le fonctionnement normal.<\/p>\n

Les produits \u00e9quivalents sont normalement constitu\u00e9s de deux parties, \u00e0 savoir la t\u00eate de mesure d\u2019une part et le circuit \u00e9lectronique de traitement du signal d\u2019autre part alors que ce nouveau mod\u00e8le propose un design compact tout-en-un, permettant de nombreuses possibilit\u00e9s de montage sur chassis (montage vertical ou horizontal).<\/p>\n

www.lem.com<\/a><\/p>\n

LEM lance un site Web facilitant les recherches d\u2019informations produit<\/a><\/h3>\n

LEM rend la mesure de tension plus compacte<\/a><\/h3>\n

LEM r\u00e9invente la technologie Fluxgate pour la mesure ultra pr\u00e9cise de courant <\/a><\/h3>\n","protected":false},"excerpt":{"rendered":"

Con\u00e7u pour la mesure isol\u00e9e et non invasive de courants nominaux DC, AC et impulsionnels de 1000 A, le capteur LEM IN 1000-S offre une plage de temp\u00e9rature \u00e9tendue allant de -40 \u00b0C \u00e0 +85 \u00b0C, permettant un usage sur un plus large \u00e9ventail d\u2019applications, en plus d\u2019une utilisation en laboratoire. <\/p>\n","protected":false},"author":9,"featured_media":118527,"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-118526","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"LEM \u00e9tend sa gamme de capteurs de haute pr\u00e9cision ...<\/title>\n<meta name=\"description\" content=\"Con\u00e7u pour la mesure isol\u00e9e et non invasive de courants nominaux DC, 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