{"id":4491,"date":"2026-09-07T13:44:27","date_gmt":"2026-09-07T13:44:27","guid":{"rendered":"https:\/\/ultrasuonindt.it\/technologies-et-normes-end\/detection-de-defauts\/"},"modified":"2026-09-12T15:21:44","modified_gmt":"2026-09-12T15:21:44","slug":"detection-de-defauts","status":"publish","type":"page","link":"https:\/\/ultrasuonindt.it\/fr\/technologies-et-normes-end\/detection-de-defauts\/","title":{"rendered":"D\u00e9tection de d\u00e9fauts"},"content":{"rendered":"\n<div class=\"wp-block-columns are-vertically-aligned-top is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:36%\">\n<figure class=\"wp-block-image size-large has-custom-border\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"1200\" src=\"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_FX70-Flaw-Detector-Powerful_per_misure_di_difetti_e_cricche-web-1200x1200-1.webp?resize=1200%2C1200&#038;ssl=1\" alt=\"D&#xE9;tecteur de d&#xE9;fauts &#xE0; ultrasons Dakota NDT FX70\" class=\"wp-image-1034\" style=\"border-color:#000000;border-width:1px;border-radius:15px\" srcset=\"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_FX70-Flaw-Detector-Powerful_per_misure_di_difetti_e_cricche-web-1200x1200-1.webp?w=1200&amp;ssl=1 1200w, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_FX70-Flaw-Detector-Powerful_per_misure_di_difetti_e_cricche-web-1200x1200-1.webp?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_FX70-Flaw-Detector-Powerful_per_misure_di_difetti_e_cricche-web-1200x1200-1.webp?resize=1024%2C1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_FX70-Flaw-Detector-Powerful_per_misure_di_difetti_e_cricche-web-1200x1200-1.webp?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_FX70-Flaw-Detector-Powerful_per_misure_di_difetti_e_cricche-web-1200x1200-1.webp?resize=768%2C768&amp;ssl=1 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:4%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:60%\">\n<div class=\"wp-block-group has-background is-layout-flow wp-block-group-is-layout-flow\" style=\"border-top-right-radius:6px;border-bottom-right-radius:6px;border-left-color:#225f78;border-left-width:6px;background-color:#ebf1f4;padding-top:24px;padding-right:28px;padding-bottom:24px;padding-left:28px\">\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#225f78;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.408), 18px);font-style:italic;font-weight:400;line-height:1.6\">Dans la mesure d&rsquo;\u00e9paisseur, un seul \u00e9cho compte, celui de fond. Dans la d\u00e9tection de d\u00e9fauts, tous les autres comptent : ceux qui reviennent de quelque chose qui ne devrait pas se trouver dans le mat\u00e9riau. <\/p>\n<\/div>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\" style=\"list-style:none;padding-left:0px;line-height:1.6\">\n<li style=\"list-style:none\"><strong style=\"color:#225f78\">\u2713<\/strong> A-Scan pour interpr\u00e9ter l&rsquo;\u00e9cho, B-Scan pour en voir le profil<\/li>\n\n\n\n<li style=\"list-style:none\"><strong style=\"color:#225f78\">\u2713<\/strong> Courbes DAC et DGS pour \u00e9valuer l&rsquo;amplitude par rapport \u00e0 une r\u00e9f\u00e9rence<\/li>\n\n\n\n<li style=\"list-style:none\"><strong style=\"color:#225f78\">\u2713<\/strong> TCG pour compenser l&rsquo;att\u00e9nuation avec la profondeur<\/li>\n\n\n\n<li style=\"list-style:none\"><strong style=\"color:#225f78\">\u2713<\/strong> Sondes d&rsquo;angle \u00e0 ondes transversales pour atteindre le cordon de soudure<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n<p class=\"wp-block-paragraph\">Un d\u00e9faut interne \u2014 une fissure, un manque de fusion, une inclusion \u2014 constitue une discontinuit\u00e9 acoustique : l&rsquo;impulsion qui le rencontre est en partie r\u00e9fl\u00e9chie et revient au transducteur avant l&rsquo;\u00e9cho de fond. La t\u00e2che de l&rsquo;instrument est de rendre cette r\u00e9flexion visible ; celle de l&rsquo;op\u00e9rateur est d&rsquo;\u00e9tablir ce qu&rsquo;elle signifie. <\/p>\n\n<p class=\"wp-block-paragraph\">Cette seconde partie est la raison pour laquelle la d\u00e9tection de d\u00e9fauts n&rsquo;est pas une mesure automatique. L&rsquo;amplitude d&rsquo;un \u00e9cho d\u00e9pend de la dimension de la discontinuit\u00e9, mais aussi de son orientation, de la profondeur \u00e0 laquelle elle se trouve et de l&rsquo;att\u00e9nuation du mat\u00e9riau travers\u00e9. L&rsquo;\u00e9valuer exige une r\u00e9f\u00e9rence et une qualification.  <\/p>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div class=\"wp-block-cover is-light popmake-4066 popmake-739\" style=\"border-width:1px;min-height:250px;aspect-ratio:unset;\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"250\" class=\"wp-block-cover__image-background wp-image-727 size-full\" alt=\"\" src=\"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/banner_technical_support_choose_products.png?resize=1200%2C250&#038;ssl=1\" data-object-fit=\"cover\" srcset=\"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/banner_technical_support_choose_products.png?w=1200&amp;ssl=1 1200w, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/banner_technical_support_choose_products.png?resize=300%2C63&amp;ssl=1 300w, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/banner_technical_support_choose_products.png?resize=1024%2C213&amp;ssl=1 1024w, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/banner_technical_support_choose_products.png?resize=768%2C160&amp;ssl=1 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim-30 has-background-dim\" style=\"background-color:#d3d6dc\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-container-core-cover-is-layout-15701bb7 wp-block-cover-is-layout-constrained\">\n<p class=\"has-text-align-right has-ti-fg-color is-style-default has-luminous-vivid-amber-color has-text-color has-link-color wp-elements-1 wp-block-paragraph\" style=\"font-size:clamp(21.536px, 1.346rem + ((1vw - 3.2px) * 1.374), 35px);\"><strong>Besoin d&rsquo;aide pour choisir le produit adapt\u00e9 ?<\/strong><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-right is-layout-flex wp-container-core-buttons-is-layout-b507c051 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button popmake-4066 popmake-739\"><a class=\"wp-block-button__link has-ti-accent-color has-cyan-bluish-gray-background-color has-text-color has-background has-link-color wp-element-button\">Contactez-nous<\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\">Les courbes de r\u00e9f\u00e9rence servent exactement \u00e0 cela : construites sur des blocs avec des r\u00e9flecteurs artificiels de dimension connue, elles permettent de comparer l&rsquo;\u00e9cho r\u00e9el \u00e0 celui attendu \u00e0 la m\u00eame profondeur. Sans une telle r\u00e9f\u00e9rence, l&rsquo;amplitude \u00e0 l&rsquo;\u00e9cran est un nombre d\u00e9pourvu de sens. <\/p>\n\n<h2 class=\"wp-block-heading\">Les approfondissements de cette section<\/h2>\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th style=\"background-color:#225f78;color:#ffffff;padding:10px\">Sujet<\/th><th style=\"background-color:#225f78;color:#ffffff;padding:10px\">\u00c0 quoi il r\u00e9pond<\/th><\/tr><\/thead><tbody><tr><td><a href=\"https:\/\/ultrasuonindt.it\/tecnologie-e-normative-ndt\/rilevamento-difetti\/visualizzazione-a-scan\/\">Affichage A-Scan<\/a><\/td><td>Ce que montre la forme d&rsquo;onde et comment on la lit<\/td><\/tr><tr><td><a href=\"https:\/\/ultrasuonindt.it\/tecnologie-e-normative-ndt\/rilevamento-difetti\/visualizzazione-b-scan\/\">Affichage B-Scan<\/a><\/td><td>Le profil de section le long d&rsquo;un parcours de balayage<\/td><\/tr><tr><td><a href=\"https:\/\/ultrasuonindt.it\/tecnologie-e-normative-ndt\/rilevamento-difetti\/curve-dac-e-dgs\/\">Courbes DAC et DGS<\/a><\/td><td>Comment on \u00e9value l&rsquo;amplitude d&rsquo;une indication<\/td><\/tr><tr><td><a href=\"https:\/\/ultrasuonindt.it\/tecnologie-e-normative-ndt\/rilevamento-difetti\/tcg-e-compensazione-in-profondita\/\">TCG et compensation en profondeur<\/a><\/td><td>Rendre comparables des \u00e9chos provenant de profondeurs diff\u00e9rentes<\/td><\/tr><tr><td><a href=\"https:\/\/ultrasuonindt.it\/tecnologie-e-normative-ndt\/rilevamento-difetti\/toolkit-aws-e-indication-rating\/\">Toolkit AWS et indication rating<\/a><\/td><td>Le calcul pr\u00e9vu par le code am\u00e9ricain pour les soudures<\/td><\/tr><tr><td><a href=\"https:\/\/ultrasuonindt.it\/tecnologie-e-normative-ndt\/rilevamento-difetti\/sonde-angolari-e-shear-wave\/\">Sondes d&rsquo;angle et ondes transversales<\/a><\/td><td>Pourquoi un cordon s&rsquo;inspecte avec le faisceau inclin\u00e9<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\">Instrument, sonde et r\u00e9f\u00e9rence<\/h2>\n\n<div class=\"wp-block-columns are-vertically-aligned-top is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:36%\">\n<figure class=\"wp-block-image size-large has-custom-border\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"387\" height=\"387\" src=\"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-display_con_immagine_rappresentazione_modo_funzionamento_flaw-web-387x387-1.webp?resize=387%2C387&#038;ssl=1\" alt=\"Afficheur en mode flaw d'un instrument Dakota NDT\" class=\"wp-image-964\" style=\"border-color:#000000;border-width:1px;border-radius:15px\" srcset=\"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-display_con_immagine_rappresentazione_modo_funzionamento_flaw-web-387x387-1.webp?w=387&amp;ssl=1 387w, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-display_con_immagine_rappresentazione_modo_funzionamento_flaw-web-387x387-1.webp?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-display_con_immagine_rappresentazione_modo_funzionamento_flaw-web-387x387-1.webp?resize=150%2C150&amp;ssl=1 150w\" sizes=\"auto, (max-width: 387px) 100vw, 387px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:4%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:60%\">\n<p class=\"wp-block-paragraph\">Un contr\u00f4le de soudures exige trois \u00e9l\u00e9ments coordonn\u00e9s : l&rsquo;instrument, qui doit disposer du toolkit d&rsquo;\u00e9valuation requis par le code applicable ; la sonde d&rsquo;angle avec son sabot, choisie en fonction de l&rsquo;\u00e9paisseur et de la g\u00e9om\u00e9trie du joint ; le bloc de r\u00e9f\u00e9rence sur lequel construire la courbe.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les d\u00e9tecteurs de d\u00e9fauts Dakota NDT de la famille FX comprennent le toolkit de dimensionnement avec DAC, DGS, TCG et AWS, et travaillent aussi en mode de mesure d&rsquo;\u00e9paisseur. La gamme compl\u00e8te se trouve dans la section <a href=\"https:\/\/ultrasuonindt.it\/fr\/produits\/detecteurs-de-defauts\/\">D\u00e9tecteurs de d\u00e9fauts<\/a>. <\/p>\n<\/div>\n<\/div>\n\n<h2 class=\"wp-block-heading\">Questions fr\u00e9quentes<\/h2>\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1757264001\"><strong class=\"schema-faq-question\">Un \u00e9paisseurm\u00e8tre peut-il d\u00e9tecter les d\u00e9fauts ?<\/strong><p class=\"schema-faq-answer\">Ce sont deux fonctions diff\u00e9rentes. Certains \u00e9paisseurm\u00e8tres haut de gamme disposent de fonctionnalit\u00e9s de diagnostic, mais le contr\u00f4le d&rsquo;un cordon de soudure exige un d\u00e9tecteur de d\u00e9fauts avec sondes d&rsquo;angle et courbes de r\u00e9f\u00e9rence. <\/p><\/div><div class=\"schema-faq-section\" id=\"faq-question-1757264002\"><strong class=\"schema-faq-question\">Pourquoi faut-il une courbe de r\u00e9f\u00e9rence ?<\/strong><p class=\"schema-faq-answer\">Parce que l&rsquo;amplitude d&rsquo;un \u00e9cho d\u00e9pend aussi de la profondeur \u00e0 laquelle se trouve la discontinuit\u00e9 et de l&rsquo;att\u00e9nuation du mat\u00e9riau. La courbe, construite sur des r\u00e9flecteurs de dimension connue, fournit le terme de comparaison. <\/p><\/div><div class=\"schema-faq-section\" id=\"faq-question-1757264003\"><strong class=\"schema-faq-question\">Faut-il une qualification pour effectuer le contr\u00f4le ?<\/strong><p class=\"schema-faq-answer\">Oui. L&rsquo;interpr\u00e9tation des indications exige un op\u00e9rateur qualifi\u00e9 selon les normes applicables au secteur et au type de composant contr\u00f4l\u00e9. <\/p><\/div><\/div>\n\n<p class=\"wp-block-paragraph\">Retournez \u00e0 <a href=\"https:\/\/ultrasuonindt.it\/fr\/technologies-et-normes-end\/\">Technologies et Normes END<\/a> ou \u00e9crivez-nous depuis la page <a href=\"https:\/\/ultrasuonindt.it\/fr\/contacts\/\">Contact<\/a>.<\/p>\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h5 class=\"wp-block-heading\">Informations compl\u00e9mentaires et contacts <\/h5>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">Partenaire division syst\u00e8mes et int\u00e9gration de capteurs : <a href=\"http:\/\/www.roder.it\">www.roder.it<\/a><br\/>Plus d&rsquo;informations sur RODER SRL : <a href=\"https:\/\/ultrasuonindt.it\/chi-siamo\/\">qui sommes-nous<\/a><br\/>Contact pour informations g\u00e9n\u00e9rales : <a href=\"mailto:info@roder.it\">info@roder.it<\/a><br\/>Contact pour informations sur ces produits : <a href=\"mailto:info@roder.it\">info@roder.it<\/a><\/p>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\"><br\/>Les informations contenues dans cette page web sont fournies \u00e0 titre purement informatif. Bien qu&rsquo;elles aient \u00e9t\u00e9 \u00e9labor\u00e9es avec le plus grand soin, elles ne constituent ni une offre contractuelle ni un engagement contraignant de fourniture. Elles peuvent contenir des erreurs de transcription, de traduction ou des coquilles. Pour des informations pr\u00e9cises et \u00e0 jour, nous vous invitons \u00e0 contacter directement notre soci\u00e9t\u00e9.    <\/p>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">Certaines images pr\u00e9sentes sur ce site web ont \u00e9t\u00e9 intentionnellement g\u00e9n\u00e9r\u00e9es \u00e0 l&rsquo;aide de l&rsquo;Intelligence Artificielle (IA). Cela tient au fait que, pour de nombreuses applications et projets, il n&rsquo;est pas possible de divulguer des photographies de l&rsquo;installation ou du syst\u00e8me r\u00e9el en raison d&rsquo;accords de confidentialit\u00e9, de clauses de confidentialit\u00e9 et d&rsquo;accords de non-divulgation (NDA). <\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Dans la mesure d&rsquo;\u00e9paisseur, un seul \u00e9cho compte, celui de fond. Dans la d\u00e9tection de d\u00e9fauts, tous les autres comptent : ceux qui reviennent de quelque chose qui ne devrait pas se trouver dans le mat\u00e9riau. Un d\u00e9faut interne \u2014 une fissure, un manque de fusion, une inclusion \u2014 constitue une discontinuit\u00e9 acoustique : l&rsquo;impulsion [&hellip;]<\/p>\n","protected":false},"author":157040980,"featured_media":3344,"parent":4449,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_yoast_wpseo_focuskw":"d\u00e9tection de d\u00e9fauts par ultrasons","_yoast_wpseo_title":"Rilevamento difetti ad ultrasuoni | Dakota NDT","_yoast_wpseo_metadesc":"Comment fonctionne la d\u00e9tection de d\u00e9fauts par ultrasons : affichage A-Scan et B-Scan, courbes DAC et DGS, TCG, toolkit AWS et sondes d'angle \u00e0 ondes transversales.","_wpcom_ai_launchpad_about_page":false,"_wpcom_ai_launchpad_gallery_page":false,"_wpcom_ai_launchpad_contact_page":false,"_wpcom_ai_launchpad_events_page":false,"_wpcom_ai_launchpad_video_page":false,"_wpcom_ai_launchpad_portfolio_piece":false,"footnotes":""},"class_list":["post-4491","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Rilevamento difetti ad ultrasuoni | Dakota NDT<\/title>\n<meta name=\"description\" content=\"Comment fonctionne la d\u00e9tection de d\u00e9fauts par ultrasons : affichage A-Scan et B-Scan, courbes DAC et DGS, TCG, toolkit AWS et sondes d&#039;angle \u00e0 ondes transversales.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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Cette section explique comment fonctionne le contr\u00f4le par ultrasons, ce qui distingue un mode de l'autre et quelles normes r\u00e9gissent la mati\u00e8re. \u2713 Les modes de mesure expliqu\u00e9s un par un, avec leur emploi \u2713 D\u00e9tection de d\u00e9fauts : A-Scan, B-Scan,\u2026","rel":"","context":"Article similaire","block_context":{"text":"Article similaire","link":""},"img":{"alt_text":"Main tenant une sonde \u00e0 ultrasons Dakota NDT pendant une inspection","src":"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-immagine_con_mano_che_tiene_in_posizione_sonda_ad-ultrasuoni-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-immagine_con_mano_che_tiene_in_posizione_sonda_ad-ultrasuoni-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-immagine_con_mano_che_tiene_in_posizione_sonda_ad-ultrasuoni-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-immagine_con_mano_che_tiene_in_posizione_sonda_ad-ultrasuoni-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-immagine_con_mano_che_tiene_in_posizione_sonda_ad-ultrasuoni-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":5040,"url":"https:\/\/ultrasuonindt.it\/fr\/technologies-et-normes-end\/detection-de-defauts\/tcg-et-compensation-en-profondeur\/","url_meta":{"origin":4491,"position":4},"title":"TCG et compensation en profondeur","author":"GSM","date":"7 septembre 2026","format":false,"excerpt":"Au lieu de corriger a posteriori la lecture d'un \u00e9cho lointain, le TCG amplifie davantage ce qui arrive de loin. Des r\u00e9flecteurs identiques \u00e0 des profondeurs diff\u00e9rentes apparaissent ainsi \u00e0 la m\u00eame hauteur. \u2713 Gain qui cro\u00eet avec le temps de vol, c'est-\u00e0-dire avec la profondeur \u2713 \u00c9chos de r\u00e9flecteurs\u2026","rel":"","context":"Article similaire","block_context":{"text":"Article similaire","link":""},"img":{"alt_text":"Dakota NDT FX71-DL Flaw Detector d\u00e9tecteur de d\u00e9fauts \u00e0 ultrasons","src":"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-FX71-DL_rilevatore_di_difetti_ad_ultrasuoni-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-FX71-DL_rilevatore_di_difetti_ad_ultrasuoni-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-FX71-DL_rilevatore_di_difetti_ad_ultrasuoni-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-FX71-DL_rilevatore_di_difetti_ad_ultrasuoni-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-FX71-DL_rilevatore_di_difetti_ad_ultrasuoni-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":5029,"url":"https:\/\/ultrasuonindt.it\/fr\/technologies-et-normes-end\/detection-de-defauts\/courbes-dac-et-dgs\/","url_meta":{"origin":4491,"position":5},"title":"Courbes DAC et DGS","author":"GSM","date":"7 septembre 2026","format":false,"excerpt":"Un \u00e9cho \u00e9lev\u00e9 ne signifie pas un d\u00e9faut important. Deux r\u00e9flecteurs identiques \u00e0 des profondeurs diff\u00e9rentes produisent des amplitudes diff\u00e9rentes : sans terme de comparaison, la hauteur du pic ne dit rien. \u2713 DAC : courbe construite sur des r\u00e9flecteurs connus \u00e0 diff\u00e9rentes profondeurs \u2713 DGS : \u00e9valuation bas\u00e9e sur\u2026","rel":"","context":"Article similaire","block_context":{"text":"Article similaire","link":""},"img":{"alt_text":"Dakota NDT FX70 Flaw Detector Powerful pour mesures de d\u00e9fauts et fissures \u00e0 ultrasons","src":"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_FX70-Flaw-Detector-Powerful_per_misure_di_difetti_e_cricche-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_FX70-Flaw-Detector-Powerful_per_misure_di_difetti_e_cricche-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_FX70-Flaw-Detector-Powerful_per_misure_di_difetti_e_cricche-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_FX70-Flaw-Detector-Powerful_per_misure_di_difetti_e_cricche-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_FX70-Flaw-Detector-Powerful_per_misure_di_difetti_e_cricche-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/ultrasuonindt.it\/fr\/wp-json\/wp\/v2\/pages\/4491","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ultrasuonindt.it\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ultrasuonindt.it\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ultrasuonindt.it\/fr\/wp-json\/wp\/v2\/users\/157040980"}],"replies":[{"embeddable":true,"href":"https:\/\/ultrasuonindt.it\/fr\/wp-json\/wp\/v2\/comments?post=4491"}],"version-history":[{"count":2,"href":"https:\/\/ultrasuonindt.it\/fr\/wp-json\/wp\/v2\/pages\/4491\/revisions"}],"predecessor-version":[{"id":4496,"href":"https:\/\/ultrasuonindt.it\/fr\/wp-json\/wp\/v2\/pages\/4491\/revisions\/4496"}],"up":[{"embeddable":true,"href":"https:\/\/ultrasuonindt.it\/fr\/wp-json\/wp\/v2\/pages\/4449"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ultrasuonindt.it\/fr\/wp-json\/wp\/v2\/media\/3344"}],"wp:attachment":[{"href":"https:\/\/ultrasuonindt.it\/fr\/wp-json\/wp\/v2\/media?parent=4491"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}