{"id":4075,"date":"2025-02-26T23:31:21","date_gmt":"2025-02-26T23:31:21","guid":{"rendered":"https:\/\/becacompany.ticgeek.com\/?page_id=4075"},"modified":"2025-05-21T16:15:18","modified_gmt":"2025-05-21T16:15:18","slug":"eddy-cuurent-testing","status":"publish","type":"page","link":"https:\/\/becacompany.com\/fr\/eddy-cuurent-testing\/","title":{"rendered":"Contr\u00f4le par courants de Foucault"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"4075\" class=\"elementor elementor-4075\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ed7fff8 e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no e-con e-parent\" data-id=\"ed7fff8\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-aa510c5 elementor-widget elementor-widget-porto_ultimate_heading\" data-id=\"aa510c5\" data-element_type=\"widget\" data-widget_type=\"porto_ultimate_heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"porto-u-heading  porto-u-ad87e2eaf3f9c495180fe0156ddf3eb0\"><div class=\"porto-u-sub-heading\" style=\"\"><p>Cette technique est utilis\u00e9e pour d\u00e9tecter les d\u00e9fauts de surface et proches de la surface sur des zones relativement petites, sans qu'il soit n\u00e9cessaire de retirer la peinture de surface avant le test. L'\u00e9quipement est l\u00e9ger et compact et fournit un retour d'information imm\u00e9diat, ce qui le rend id\u00e9al pour l'inspection sur site.<br \/>L'ET est une technique \u00e9lectromagn\u00e9tique et ne peut \u00eatre utilis\u00e9e que sur des mat\u00e9riaux conducteurs. Ses applications vont de la d\u00e9tection de fissures au tri rapide de petits composants pour d\u00e9tecter les d\u00e9fauts, les variations de taille ou les variations de mat\u00e9riau. Il est couramment utilis\u00e9 dans les secteurs de l'a\u00e9rospatiale, du ferroviaire, de l'automobile, de la marine et de la fabrication.<\/p><p>Lorsqu'une bobine sous tension est amen\u00e9e \u00e0 proximit\u00e9 de la surface d'un composant m\u00e9tallique, des courants de Foucault sont induits dans l'\u00e9chantillon. Ces courants cr\u00e9ent un champ magn\u00e9tique qui tend \u00e0 s'opposer au champ magn\u00e9tique d'origine. L'imp\u00e9dance de la bobine \u00e0 proximit\u00e9 de l'\u00e9chantillon est affect\u00e9e par la pr\u00e9sence des courants de Foucault induits dans l'\u00e9chantillon.<br \/>Lorsque les courants de Foucault dans l'\u00e9chantillon sont d\u00e9form\u00e9s par la pr\u00e9sence de d\u00e9fauts ou de variations de mat\u00e9riau, l'imp\u00e9dance de la bobine est modifi\u00e9e. Ce changement est mesur\u00e9 et affich\u00e9 d'une mani\u00e8re qui indique le type de d\u00e9faut ou l'\u00e9tat du mat\u00e9riau.<\/p><h3><b>Avantages du contr\u00f4le par courants de Foucault :<\/b><\/h3><ul><li><b>Fast, portable, and paint-tolerant:<\/b>\u00a0pas besoin de d\u00e9caper les rev\u00eatements<\/li><li>Fournit un <b>retour d'information imm\u00e9diat<\/b> pendant l'inspection<\/li><li>Efficace pour la <b>d\u00e9tection des fissures<\/b> et <b>le tri des mat\u00e9riaux<\/b><\/li><li>Tr\u00e8s sensible aux <b>petits d\u00e9fauts de rupture de surface<\/b><\/li><li>Applicable aux <b>complex shapes and geometries<\/b><\/li><li>Aucun support de couplage n'est n\u00e9cessaire<\/li><\/ul><h3><strong>Les essais par courants de Foucault inspectent :<\/strong><\/h3><ul><li>Structures, unit\u00e9s et moteurs d'a\u00e9ronefs<\/li><li>Engrenages, lames, boulons, trous de boulons, filetage, arbres, brides, buses<\/li><li>\u00c9quipements de fabrication et de transport<\/li><li>Pi\u00e8ces d\u00e9tach\u00e9es automobiles<\/li><\/ul><\/div><style>.porto-u-ad87e2eaf3f9c495180fe0156ddf3eb0.porto-u-heading{text-align:left}<\/style><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-de32bc8 elementor-widget elementor-widget-spacer\" data-id=\"de32bc8\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ac56677 e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no e-con e-parent\" data-id=\"ac56677\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-6dd0e83 e-con-full e-flex wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no e-con e-child\" data-id=\"6dd0e83\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-90bb3cd elementor-widget elementor-widget-image\" data-id=\"90bb3cd\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/becacompany.com\/wp-content\/uploads\/2025\/03\/14-600x600-1.jpg\" class=\"attachment-large size-large wp-image-4348\" alt=\"\" srcset=\"https:\/\/becacompany.com\/wp-content\/uploads\/2025\/03\/14-600x600-1.jpg 600w, https:\/\/becacompany.com\/wp-content\/uploads\/2025\/03\/14-600x600-1-400x400.jpg 400w, https:\/\/becacompany.com\/wp-content\/uploads\/2025\/03\/14-600x600-1-560x560.jpg 560w, https:\/\/becacompany.com\/wp-content\/uploads\/2025\/03\/14-600x600-1-367x367.jpg 367w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-cc92fc1 e-con-full e-flex wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no e-con e-child\" data-id=\"cc92fc1\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2fff0fc elementor-widget elementor-widget-image\" data-id=\"2fff0fc\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/becacompany.com\/wp-content\/uploads\/2025\/03\/saw-600x600-1.jpg\" class=\"attachment-large size-large wp-image-4349\" alt=\"\" srcset=\"https:\/\/becacompany.com\/wp-content\/uploads\/2025\/03\/saw-600x600-1.jpg 600w, https:\/\/becacompany.com\/wp-content\/uploads\/2025\/03\/saw-600x600-1-400x400.jpg 400w, https:\/\/becacompany.com\/wp-content\/uploads\/2025\/03\/saw-600x600-1-560x560.jpg 560w, https:\/\/becacompany.com\/wp-content\/uploads\/2025\/03\/saw-600x600-1-367x367.jpg 367w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7f706fb e-con-full e-flex wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no e-con e-child\" data-id=\"7f706fb\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e0492ff elementor-widget elementor-widget-image\" data-id=\"e0492ff\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/becacompany.com\/wp-content\/uploads\/2025\/03\/Untitled-design-1-1-600x600-1.png\" class=\"attachment-large size-large wp-image-4350\" alt=\"\" srcset=\"https:\/\/becacompany.com\/wp-content\/uploads\/2025\/03\/Untitled-design-1-1-600x600-1.png 600w, https:\/\/becacompany.com\/wp-content\/uploads\/2025\/03\/Untitled-design-1-1-600x600-1-400x400.png 400w, https:\/\/becacompany.com\/wp-content\/uploads\/2025\/03\/Untitled-design-1-1-600x600-1-560x560.png 560w, https:\/\/becacompany.com\/wp-content\/uploads\/2025\/03\/Untitled-design-1-1-600x600-1-367x367.png 367w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-31986d0 e-con-full e-flex wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no e-con e-child\" data-id=\"31986d0\" data-element_type=\"container\">\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>This technique is used to detect surface and near surface defects on relatively small areas; without the need to remove surface paint prior to testing. The equipment is light and compact and provides immediate feedback, making it ideally suited for inspecting on site.ET is an electromagnetic technique and can only be used on conductive materials. Its applications range from crack detection, to the rapid sorting of small components for flaws, size variations, or material variation. Commonly it is used in the aerospace, rail, automotive, marine and manufacturing industries. When an energized coil is brought near to the surface of a metal component, eddy currents are induced into the specimen. These currents set-up magnetic field that tend to oppose the original magnetic field. The impedance of coil in close proximity to the specimen is affected by the presence of the induced eddy currents in the specimen.When the eddy currents in the specimen are distorted by the presence of the flaws or material variations, the impedance in the coil is altered. This change is measured and displayed in a manner that indicates the type of flaw or material condition. Benefits of Eddy Current Testing: Fast, portable, and paint-tolerant:\u00a0no need to strip coatings Provides immediate feedback during inspection Effective for both crack detection and material sorting Highly sensitive to small surface-breaking defects Applicable to complex shapes and geometries No coupling medium required Eddy current testing inspects: Aircraft structures, units and engines Gears, blades, bolts, bolt holes, threading, shafts, flanges, nozzles Manufacturing and transportation equipment Automotive parts<\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-4075","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/becacompany.com\/fr\/wp-json\/wp\/v2\/pages\/4075","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/becacompany.com\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/becacompany.com\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/becacompany.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/becacompany.com\/fr\/wp-json\/wp\/v2\/comments?post=4075"}],"version-history":[{"count":13,"href":"https:\/\/becacompany.com\/fr\/wp-json\/wp\/v2\/pages\/4075\/revisions"}],"predecessor-version":[{"id":6323,"href":"https:\/\/becacompany.com\/fr\/wp-json\/wp\/v2\/pages\/4075\/revisions\/6323"}],"wp:attachment":[{"href":"https:\/\/becacompany.com\/fr\/wp-json\/wp\/v2\/media?parent=4075"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}