{"id":5029,"date":"2026-09-07T14:39:11","date_gmt":"2026-09-07T14:39:11","guid":{"rendered":"https:\/\/ultrasuonindt.it\/technologies-et-normes-end\/detection-de-defauts\/courbes-dac-et-dgs\/"},"modified":"2026-09-17T17:12:44","modified_gmt":"2026-09-17T17:12:44","slug":"courbes-dac-et-dgs","status":"publish","type":"page","link":"https:\/\/ultrasuonindt.it\/fr\/technologies-et-normes-end\/detection-de-defauts\/courbes-dac-et-dgs\/","title":{"rendered":"Courbes DAC et DGS"},"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 avec toolkit d'&#xE9;valuation des indications\" 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\">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. <\/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> DAC : courbe construite sur des r\u00e9flecteurs connus \u00e0 diff\u00e9rentes profondeurs<\/li>\n\n\n\n<li style=\"list-style:none\"><strong style=\"color:#225f78\">\u2713<\/strong> DGS : \u00e9valuation bas\u00e9e sur des courbes th\u00e9oriques de distance, gain et dimension<\/li>\n\n\n\n<li style=\"list-style:none\"><strong style=\"color:#225f78\">\u2713<\/strong> Comparaison directe entre indication r\u00e9elle et r\u00e9f\u00e9rence<\/li>\n\n\n\n<li style=\"list-style:none\"><strong style=\"color:#225f78\">\u2713<\/strong> Toolkit de dimensionnement avec DAC, DGS, TCG et AWS sur la famille FX<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n<p class=\"wp-block-paragraph\">L&rsquo;amplitude de l&rsquo;\u00e9cho qui revient d&rsquo;une discontinuit\u00e9 d\u00e9pend de plusieurs facteurs \u00e0 la fois : la dimension du r\u00e9flecteur, son orientation par rapport au faisceau, et la distance que l&rsquo;impulsion a d\u00fb parcourir. Plus le d\u00e9faut est \u00e9loign\u00e9, plus le signal s&rsquo;att\u00e9nue, ind\u00e9pendamment de sa gravit\u00e9. <\/p>\n\n<p class=\"wp-block-paragraph\">La courbe DAC r\u00e9sout le probl\u00e8me par voie exp\u00e9rimentale. Sur un bloc de r\u00e9f\u00e9rence du m\u00eame mat\u00e9riau sont usin\u00e9s des r\u00e9flecteurs artificiels identiques, plac\u00e9s \u00e0 des profondeurs croissantes ; on mesure leurs \u00e9chos et on relie les points obtenus. La courbe qui en r\u00e9sulte d\u00e9crit comment s&rsquo;att\u00e9nue, dans ce mat\u00e9riau, l&rsquo;\u00e9cho d&rsquo;un r\u00e9flecteur de dimension connue lorsque la distance augmente.  <\/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\">D\u00e8s lors, l&rsquo;op\u00e9rateur dispose d&rsquo;un \u00e9talon. Une indication trouv\u00e9e dans la pi\u00e8ce est compar\u00e9e \u00e0 la courbe \u00e0 la m\u00eame profondeur : on \u00e9value de combien elle la d\u00e9passe ou reste en dessous, et le code applicable \u00e9tablit comment la classer. La m\u00e9thode DGS suit une logique analogue mais s&rsquo;appuie sur des courbes th\u00e9oriques qui relient distance, gain et dimension \u00e9quivalente du r\u00e9flecteur.  <\/p>\n\n<h2 class=\"wp-block-heading\">Ce qu&rsquo;il faut pour construire une DAC<\/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\">\u00c9l\u00e9ment<\/th><th style=\"background-color:#225f78;color:#ffffff;padding:10px\">Pourquoi il est n\u00e9cessaire<\/th><\/tr><\/thead><tbody><tr><td>Bloc de r\u00e9f\u00e9rence<\/td><td>Il doit \u00eatre du m\u00eame mat\u00e9riau que la pi\u00e8ce \u00e0 contr\u00f4ler<\/td><\/tr><tr><td>R\u00e9flecteurs artificiels connus<\/td><td>Ils fournissent des \u00e9chos de dimension comparable \u00e0 diff\u00e9rentes profondeurs<\/td><\/tr><tr><td>M\u00eame sonde et m\u00eame sabot<\/td><td>La courbe vaut pour la configuration avec laquelle elle a \u00e9t\u00e9 construite<\/td><\/tr><tr><td>Gain de r\u00e9f\u00e9rence<\/td><td>La courbe est valable au gain avec lequel elle a \u00e9t\u00e9 trac\u00e9e<\/td><\/tr><tr><td>Code applicable<\/td><td>Il \u00e9tablit les crit\u00e8res selon lesquels l&rsquo;indication doit \u00eatre class\u00e9e<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\">Quand la configuration change<\/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=\"700\" height=\"700\" src=\"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/05\/dakota_ndt-blocchetti_di_calibrazione-web-700x700-1.webp?resize=700%2C700&#038;ssl=1\" alt=\"Blocs de r&#xE9;f&#xE9;rence pour la construction des courbes d'&#xE9;valuation\" class=\"wp-image-1583\" style=\"border-color:#000000;border-width:1px;border-radius:15px\" srcset=\"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/05\/dakota_ndt-blocchetti_di_calibrazione-web-700x700-1.webp?w=700&amp;ssl=1 700w, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/05\/dakota_ndt-blocchetti_di_calibrazione-web-700x700-1.webp?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/05\/dakota_ndt-blocchetti_di_calibrazione-web-700x700-1.webp?resize=150%2C150&amp;ssl=1 150w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/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\">Une courbe DAC n&rsquo;est pas transf\u00e9rable. Elle vaut pour la combinaison de mat\u00e9riau, sonde, sabot et gain avec laquelle elle a \u00e9t\u00e9 construite : si l&rsquo;un de ces \u00e9l\u00e9ments change, la courbe doit \u00eatre refaite, car la fa\u00e7on dont le signal s&rsquo;att\u00e9nue le long du parcours change. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C&rsquo;est la raison pour laquelle le bloc de r\u00e9f\u00e9rence fait partie de l&rsquo;\u00e9quipement de celui qui effectue des contr\u00f4les de soudures, au m\u00eame titre que la sonde. Sur les appareils Dakota NDT haut de gamme, le constructeur indique la possibilit\u00e9 de construire des courbes DAC \u00e0 16 points. <\/p>\n<\/div>\n<\/div>\n\n<h2 class=\"wp-block-heading\">Appareils avec toolkit de dimensionnement<\/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\">Appareil<\/th><th style=\"background-color:#225f78;color:#ffffff;padding:10px\">Fonctions d&rsquo;\u00e9valuation<\/th><\/tr><\/thead><tbody><tr><td><a href=\"https:\/\/ultrasuonindt.it\/fr\/produits\/detecteurs-de-defauts\/dakota-fx70-dl-detecteur-de-defauts-ultrasonore-portable\/\">Dakota FX70-DL<\/a><\/td><td>Toolkit de dimensionnement avec DAC, AWS, TCG et DGS<\/td><\/tr><tr><td><a href=\"https:\/\/ultrasuonindt.it\/fr\/produits\/detecteurs-de-defauts\/dakota-fx81-dl-detecteur-de-defauts-benchtop\/\">Dakota FX81-DL<\/a><\/td><td>M\u00eame toolkit en version de table<\/td><\/tr><tr><td><a href=\"https:\/\/ultrasuonindt.it\/fr\/produits\/epaisseurmetres\/dakota-cmx10-dl-epaisseurmetre-corrosion-haut-de-gamme\/\">Dakota CMX10-DL<\/a><\/td><td>Fonctions de diagnostic avec DAC \u00e0 16 points<\/td><\/tr><tr><td><a href=\"https:\/\/ultrasuonindt.it\/fr\/produits\/sondes-et-accessoires\/blocs-detalonnage-pour-epaisseurmetres-a-ultrasons\/\">Blocs d&rsquo;\u00e9talonnage<\/a><\/td><td>R\u00e9f\u00e9rences pour la construction de la courbe<\/td><\/tr><\/tbody><\/table><\/figure>\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-1757292001\"><strong class=\"schema-faq-question\">Pourquoi un \u00e9cho plus \u00e9lev\u00e9 ne signifie-t-il pas un d\u00e9faut plus grand ?<\/strong><p class=\"schema-faq-answer\">Parce que l&rsquo;amplitude d\u00e9pend aussi de la profondeur \u00e0 laquelle se trouve le r\u00e9flecteur et de son orientation par rapport au faisceau. Deux d\u00e9fauts identiques \u00e0 des profondeurs diff\u00e9rentes produisent des \u00e9chos d&rsquo;amplitude diff\u00e9rente. <\/p><\/div><div class=\"schema-faq-section\" id=\"faq-question-1757292002\"><strong class=\"schema-faq-question\">Une courbe DAC vaut-elle pour tous les travaux ?<\/strong><p class=\"schema-faq-answer\">Non. Elle vaut pour la combinaison de mat\u00e9riau, sonde, sabot et gain avec laquelle elle a \u00e9t\u00e9 construite. Si l&rsquo;un de ces \u00e9l\u00e9ments change, la courbe doit \u00eatre refaite.  <\/p><\/div><div class=\"schema-faq-section\" id=\"faq-question-1757292003\"><strong class=\"schema-faq-question\">Quelle diff\u00e9rence y a-t-il entre DAC et DGS ?<\/strong><p class=\"schema-faq-answer\">La DAC se construit exp\u00e9rimentalement en mesurant des r\u00e9flecteurs r\u00e9els sur un bloc de r\u00e9f\u00e9rence. Le DGS s&rsquo;appuie en revanche sur des courbes qui relient distance, gain et dimension \u00e9quivalente du r\u00e9flecteur. <\/p><\/div><\/div>\n\n<p class=\"wp-block-paragraph\">Retour \u00e0 <a href=\"https:\/\/ultrasuonindt.it\/fr\/technologies-et-normes-end\/detection-de-defauts\/\">D\u00e9tection de d\u00e9fauts<\/a> ou \u00e9crivez-nous depuis la page <a href=\"https:\/\/ultrasuonindt.it\/fr\/contacts\/\">Contacts<\/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>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. L&rsquo;amplitude de l&rsquo;\u00e9cho qui revient d&rsquo;une discontinuit\u00e9 d\u00e9pend de plusieurs facteurs \u00e0 la fois : la dimension du r\u00e9flecteur, son orientation par rapport [&hellip;]<\/p>\n","protected":false},"author":157040980,"featured_media":3344,"parent":4491,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_yoast_wpseo_focuskw":"courbes DAC et DGS ultrasons","_yoast_wpseo_title":"Courbes DAC et DGS | Dakota NDT","_yoast_wpseo_metadesc":"Comment \u00e9valuer l'amplitude d'une indication ultrasonore : courbes DAC construites sur des r\u00e9flecteurs de r\u00e9f\u00e9rence et m\u00e9thode DGS, avec toolkit de dimensionnement.","_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-5029","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Courbes DAC et DGS | Dakota NDT<\/title>\n<meta name=\"description\" content=\"Comment \u00e9valuer l&#039;amplitude d&#039;une indication ultrasonore : courbes DAC construites sur des r\u00e9flecteurs de r\u00e9f\u00e9rence et m\u00e9thode DGS, avec toolkit de dimensionnement.\" \/>\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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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":2094,"url":"https:\/\/ultrasuonindt.it\/tecnologie-e-normative-ndt\/rilevamento-difetti\/curve-dac-e-dgs\/","url_meta":{"origin":5029,"position":2},"title":"Curve DAC e DGS","author":"GSM","date":"7 septembre 2026","format":false,"excerpt":"Un'eco alta non significa difetto grande. Due riflettori identici a profondit\u00e0 diverse producono ampiezze diverse: senza un termine di confronto, l'altezza del picco non dice nulla. \u2713\u00a0DAC: curva costruita su riflettori noti a profondit\u00e0 diverse \u2713\u00a0DGS: valutazione basata su curve teoriche di distanza, guadagno e dimensione \u2713\u00a0Confronto diretto fra indicazione\u2026","rel":"","context":"Article similaire","block_context":{"text":"Article similaire","link":""},"img":{"alt_text":"Dakota NDT FX70 Flaw Detector Powerful per misure di difetti e cricche ad ultrasuoni","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":[]},{"id":5034,"url":"https:\/\/ultrasuonindt.it\/es\/tecnologias-y-normas-end\/deteccion-de-defectos\/curvas-dac-y-dgs\/","url_meta":{"origin":5029,"position":3},"title":"Curvas DAC y DGS","author":"GSM","date":"7 septembre 2026","format":false,"excerpt":"Un eco alto no significa un defecto grande. 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Zwei identische Reflektoren in unterschiedlicher Tiefe erzeugen unterschiedliche Amplituden: Ohne Vergleichsma\u00dfstab sagt die H\u00f6he des Peaks nichts aus. \u2713 DAC: Kurve auf Basis bekannter Reflektoren in verschiedenen Tiefen \u2713 DGS: Bewertung anhand theoretischer Kurven von Abstand, Verst\u00e4rkung und Gr\u00f6\u00dfe \u2713 Direkter Vergleich zwischen\u2026","rel":"","context":"Article similaire","block_context":{"text":"Article similaire","link":""},"img":{"alt_text":"Dakota NDT FX70 Flaw Detector Powerful zur Ultraschallmessung von Fehlern und Rissen","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\/5029","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=5029"}],"version-history":[{"count":4,"href":"https:\/\/ultrasuonindt.it\/fr\/wp-json\/wp\/v2\/pages\/5029\/revisions"}],"predecessor-version":[{"id":6208,"href":"https:\/\/ultrasuonindt.it\/fr\/wp-json\/wp\/v2\/pages\/5029\/revisions\/6208"}],"up":[{"embeddable":true,"href":"https:\/\/ultrasuonindt.it\/fr\/wp-json\/wp\/v2\/pages\/4491"}],"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=5029"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}