{"id":33839,"date":"2026-07-07T17:47:19","date_gmt":"2026-07-07T15:47:19","guid":{"rendered":"https:\/\/cedrat-technologies.com\/?post_type=product&#038;p=33839"},"modified":"2026-07-07T17:47:45","modified_gmt":"2026-07-07T15:47:45","slug":"amplified-piezo-actuators-with-embedded-eddy-current-sensor-for-cryo-space-de-spin-mechanism","status":"publish","type":"product","link":"https:\/\/cedrat-technologies.com\/fr\/produit\/amplified-piezo-actuators-with-embedded-eddy-current-sensor-for-cryo-space-de-spin-mechanism\/","title":{"rendered":"Actionneurs pi\u00e9zo\u00e9lectriques amplifi\u00e9s avec capteur \u00e0 courants de Foucault int\u00e9gr\u00e9 pour un m\u00e9canisme spatial de De-SPIN cryog\u00e9nique"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>Les actionneurs pi\u00e9zo\u00e9lectriques constituent une solution compacte et dynamique pour les applications spatiales de pointage laser. Toutefois, afin d&rsquo;\u00e9viter l&rsquo;utilisation de m\u00e9canismes <strong>HDRM (Hold Down and Release Mechanisms)<\/strong>, il est g\u00e9n\u00e9ralement n\u00e9cessaire d&rsquo;augmenter la force maximale admissible, ce qui affecte directement les performances en d\u00e9placement de l&rsquo;actionneur. Par ailleurs, l&rsquo;environnement cryog\u00e9nique influence fortement les composants m\u00e9caniques et pi\u00e9zo\u00e9lectriques ainsi que les capteurs int\u00e9gr\u00e9s, en particulier les jauges de contrainte, qui offrent une excellente compacit\u00e9 et une grande pr\u00e9cision mais ne peuvent pas fonctionner \u00e0 tr\u00e8s basse temp\u00e9rature.<\/p>\n<p>Le projet <strong>ESA (Agence spatiale europ\u00e9enne) De-SPIN<\/strong> a permis de relever ces d\u00e9fis en concevant, fabriquant et testant une technologie innovante d&rsquo;actionneur pi\u00e9zo\u00e9lectrique amplifi\u00e9 (<strong>APA\u00ae<\/strong>) capable de supporter des niveaux de vibrations de lancement \u00e9lev\u00e9s tout en int\u00e9grant un capteur r\u00e9sistant aux environnements cryog\u00e9niques. Cet actionneur peut \u00eatre int\u00e9gr\u00e9 dans un <strong>Fast Steering Mirror (FSM)<\/strong> complet et atteindre une course de <strong>105 \u00b5m \u00e0 \u2212150 \u00b0C<\/strong>, avec redondance, tout en r\u00e9sistant \u00e0 des vibrations al\u00e9atoires de lancement de <strong>18,04 g RMS<\/strong> avec une charge utile de <strong>125 g<\/strong>.<\/p>\n","protected":false},"featured_media":33845,"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":[1383,1385,1416,1392,1539,1390,1464,2390],"product_tag":[],"class_list":{"0":"post-33839","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-capteurs-fr","9":"product_cat-fsm-plateformes-tip-tilt","10":"product_cat-instrumentation-optique-domaine-publications-fr","11":"product_cat-mecanismes","12":"product_cat-publications-fr","13":"product_cat-space-fr","15":"first","16":"instock","17":"downloadable","18":"shipping-taxable","19":"purchasable","20":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product\/33839","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=33839"}],"version-history":[{"count":1,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product\/33839\/revisions"}],"predecessor-version":[{"id":33847,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product\/33839\/revisions\/33847"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/media\/33845"}],"wp:attachment":[{"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/media?parent=33839"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product_brand?post=33839"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product_cat?post=33839"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product_tag?post=33839"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}