{"id":30357,"date":"2025-12-04T17:10:53","date_gmt":"2025-12-04T16:10:53","guid":{"rendered":"https:\/\/cedrat-technologies.com\/?post_type=product&#038;p=30357"},"modified":"2026-03-12T12:26:33","modified_gmt":"2026-03-12T11:26:33","slug":"defis-de-conception-et-de-test-des-mecanismes-de-pointage-piezoelectriques-spatiaux-a-mesure-que-la-masse-du-miroir-augmente","status":"publish","type":"product","link":"https:\/\/cedrat-technologies.com\/fr\/produit\/defis-de-conception-et-de-test-des-mecanismes-de-pointage-piezoelectriques-spatiaux-a-mesure-que-la-masse-du-miroir-augmente\/","title":{"rendered":"D\u00e9fis de conception et de test des m\u00e9canismes de pointage pi\u00e9zo\u00e9lectriques spatiaux \u00e0 mesure que la masse du miroir augmente"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p data-start=\"42\" data-end=\"411\">Les m\u00e9canismes de pointage pi\u00e9zo\u00e9lectriques doivent non seulement assurer des fonctions de haute pr\u00e9cision, mais aussi \u00eatre extr\u00eamement r\u00e9sistants tout en restant compacts et l\u00e9gers afin de r\u00e9pondre aux exigences des lancements spatiaux. Garantir le succ\u00e8s des tests de vibrations, sans utiliser de verrouillage de lancement, constitue un aspect critique des projets.<\/p>\n<p data-start=\"413\" data-end=\"838\">Cet article pr\u00e9sente comment l\u2019augmentation de la course du m\u00e9canisme et de la taille de la charge utile affecte la capacit\u00e9 des dispositifs \u00e0 supporter les vibrations lors du lancement, et comment le comportement non lin\u00e9aire de la rigidit\u00e9 de la c\u00e9ramique pi\u00e9zo\u00e9lectrique peut influencer le contr\u00f4le de l\u2019actionneur de la table vibrante lors des tests de qualification, ce qui peut conduire \u00e0 des sur-tests significatifs.<\/p>\n<p data-start=\"840\" data-end=\"979\">Enfin, des recommandations sont fournies, pouvant \u00eatre appliqu\u00e9es lors du choix des \u00e9quipements de test, bas\u00e9es sur l\u2019exp\u00e9rience de Cedrat Technologies.<\/p>\n","protected":false},"featured_media":24518,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":""},"product_brand":[],"product_cat":[1491,1464,1425],"product_tag":[],"class_list":{"0":"post-30357","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-domaine-fr","7":"product_cat-publications-fr","8":"product_cat-spatial","10":"first","11":"instock","12":"downloadable","13":"shipping-taxable","14":"purchasable","15":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product\/30357","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=30357"}],"version-history":[{"count":1,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product\/30357\/revisions"}],"predecessor-version":[{"id":32507,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product\/30357\/revisions\/32507"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/media\/24518"}],"wp:attachment":[{"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/media?parent=30357"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product_brand?post=30357"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product_cat?post=30357"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product_tag?post=30357"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}