{"id":18480,"date":"2022-09-08T00:00:00","date_gmt":"2022-09-07T22:00:00","guid":{"rendered":"http:\/\/cedrat-technologies.com\/produit\/actionneurs-piezo-pour-loptique-active-des-telescopes\/"},"modified":"2023-07-20T11:22:11","modified_gmt":"2023-07-20T09:22:11","slug":"actionneurs-piezo-pour-loptique-active-des-telescopes","status":"publish","type":"product","link":"https:\/\/cedrat-technologies.com\/fr\/produit\/actionneurs-piezo-pour-loptique-active-des-telescopes\/","title":{"rendered":"Actionneurs piezo pour l&rsquo;optique active des t\u00e9lescopes"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>Les actionneurs piezo sont couramment utilis\u00e9s dans les fast steering mirrors (FSM) pour les fonctions actives de stabilisation, de pointage et de suivi. Ces m\u00e9canismes compacts sont demand\u00e9s pour l&rsquo;optique dans l&rsquo;espace libre et la communication optique dans l&rsquo;espace lointain, car ils sont int\u00e9gr\u00e9s et offrent un mouvement de tipt-tilt rapide (jusqu&rsquo;\u00e0 1kHz) et pr\u00e9cis (\u00b5Rad) (jusqu&rsquo;\u00e0 +\/-2\u00b0). L&rsquo;utilisation d&rsquo;un actionneur amplifi\u00e9 de grande taille dans un t\u00e9lescope \u00e0 miroir est nouvelle et devient pertinente car il pr\u00e9sente une puissance suffisante, une fiabilit\u00e9 et ne se d\u00e9sint\u00e8gre pas en cas de d\u00e9faillance : conception en r\u00e9gime permanent avec une rigidit\u00e9 \u00e9lev\u00e9e de 64N\/\u00b5m. L&rsquo;objectif de cet article est de pr\u00e9senter le d\u00e9veloppement et la qualification du plus grand actionneurs piezo amplifi\u00e9 jamais int\u00e9gr\u00e9 dans un miroir tip-tilt de t\u00e9lescope de plus de 2 m\u00e8tres de diam\u00e8tre.<\/p>\n","protected":false},"featured_media":15098,"comment_status":"closed","ping_status":"open","template":"","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"yes"},"product_brand":[],"product_cat":[1383,1385,1491,1464],"product_tag":[],"class_list":{"0":"post-18480","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-actionneurs-lineaires","7":"product_cat-actionneurs-piezo-fr","8":"product_cat-domaine-fr","9":"product_cat-publications-fr","11":"first","12":"instock","13":"downloadable","14":"virtual","15":"purchasable","16":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product\/18480","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/comments?post=18480"}],"version-history":[{"count":0,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product\/18480\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/media\/15098"}],"wp:attachment":[{"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/media?parent=18480"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product_brand?post=18480"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product_cat?post=18480"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product_tag?post=18480"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}