{"id":25308,"date":"2026-07-07T15:42:42","date_gmt":"2026-07-07T13:42:42","guid":{"rendered":"https:\/\/roder.it\/technologies\/ultrasons\/vitesse-du-son-des-materiaux\/"},"modified":"2026-10-02T15:48:42","modified_gmt":"2026-10-02T13:48:42","slug":"vitesse-du-son-des-materiaux","status":"publish","type":"page","link":"https:\/\/roder.it\/fr\/technologies\/ultrasons\/vitesse-du-son-des-materiaux\/","title":{"rendered":"Vitesse du son des mat\u00e9riaux"},"content":{"rendered":"\n<div class=\"wp-block-group is-layout-constrained wp-container-core-group-is-layout-61d584a3 wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-ba02fbf7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:40%\">\n<figure class=\"wp-block-image size-large has-custom-border\"><img decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-cmx10-strumento_di_misura_ad_ultrasuoni_cmx10_per_misura_cricche_e_difetti-web_image-1200x1200-1.webp\" alt=\"Vitesse du son dans les mat&#xE9;riaux et mesure par ultrasons\" style=\"border-width:1px;border-top-left-radius:20px;border-top-right-radius:20px;border-bottom-left-radius:20px;border-bottom-right-radius:20px\"\/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:60%\">\n<p class=\"has-text-color has-background wp-block-paragraph\" style=\"border-radius:0px 6px 6px 0px;border-left-color:var(--wp--preset--color--ti-accent);border-left-style:solid;border-left-width:5px;color:#1A5276;background-color:#ebf1f4;padding-top:14px;padding-right:16px;padding-bottom:14px;padding-left:16px;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.769), 20px);font-style:italic\">La <strong>vitesse du son<\/strong> est le param\u00e8tre qui relie le temps de vol de l\u2019impulsion \u00e0 l\u2019\u00e9paisseur : la conna\u00eetre avec pr\u00e9cision est essentiel pour la mesure par ultrasons, et sa mesure permet \u00e9galement de <strong>caract\u00e9riser les mat\u00e9riaux<\/strong>.<\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list is-style-checkbox has-ti-accent-color has-text-color has-link-color wp-elements-1\">\n<li><strong>Param\u00e8tre cl\u00e9 :<\/strong> relie temps de vol et \u00e9paisseur<\/li>\n\n\n\n<li><strong>D\u00e9pend du mat\u00e9riau :<\/strong> acier ~5920 m\/s, aluminium ~6320 m\/s<\/li>\n\n\n\n<li><strong>Calibrage :<\/strong> sur une \u00e9paisseur connue pour d\u00e9terminer v<\/li>\n\n\n\n<li><strong>Mode vitesse :<\/strong> mesure de v sur une \u00e9paisseur connue<\/li>\n\n\n\n<li><strong>Caract\u00e9risation :<\/strong> duret\u00e9\/nodularit\u00e9 de la fonte<\/li>\n\n\n\n<li><strong>Influence :<\/strong> temp\u00e9rature et microstructure<\/li>\n\n\n\n<li><strong>Pr\u00e9cision de la mesure :<\/strong> exige la v correcte<\/li>\n\n\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\">La mesure d\u2019\u00e9paisseur par ultrasons repose sur la relation s = v \u00d7 t \/ 2, o\u00f9 t est le temps de vol mesur\u00e9 par l\u2019appareil et v la <strong>vitesse du son<\/strong> dans le mat\u00e9riau. Une erreur sur la vitesse se traduit directement par une erreur sur l\u2019\u00e9paisseur : c\u2019est pourquoi la vitesse doit \u00eatre r\u00e9gl\u00e9e correctement pour chaque mat\u00e9riau. <\/p>\n\n<p class=\"wp-block-paragraph\">La vitesse du son n\u2019est pas seulement une donn\u00e9e \u00e0 saisir : <strong>la mesurer<\/strong> fournit des informations sur le mat\u00e9riau lui-m\u00eame, car elle d\u00e9pend de la densit\u00e9, de l\u2019\u00e9lasticit\u00e9 et de la microstructure.<\/p>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div class=\"wp-block-cover is-light popmake-11245\" style=\"border-width:1px;border-top-left-radius:10px;border-top-right-radius:10px;border-bottom-left-radius:10px;border-bottom-right-radius:10px;min-height:250px;aspect-ratio:unset;\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"213\" class=\"wp-block-cover__image-background wp-image-14896 size-large\" alt=\"banner aiuto nella scelta dello strumento oppure della tecnologia\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products-1024x213.png\" data-object-fit=\"cover\" srcset=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products-1024x213.png 1024w, https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products-300x63.png 300w, https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products-768x160.png 768w, https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim\" style=\"background-color:#d3d6dc\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-container-core-cover-is-layout-a304f9a9 wp-block-cover-is-layout-constrained\">\n<p class=\"has-text-align-right has-ti-fg-color has-text-color has-link-color wp-elements-2 wp-block-paragraph\" style=\"font-size:clamp(21.536px, 1.346rem + ((1vw - 3.2px) * 1.726), 35px);\"><strong>Souhaitez-vous \u00eatre aid\u00e9 dans le choix du produit ?<\/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\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/roder.it\/contatti-roder-mail-indirizzo-stabilimento-oglianico-automazione-misure-controlli-industriali\/\">Cliquez ici !<\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 id=\"principio\" class=\"wp-block-heading has-ti-accent-color has-text-color\">Pourquoi la vitesse est d\u00e9terminante<\/h2>\n\n<p class=\"wp-block-paragraph\">Chaque mat\u00e9riau transmet les ultrasons \u00e0 une vitesse caract\u00e9ristique : environ <strong>5920 m\/s<\/strong> dans l\u2019acier, <strong>6320 m\/s<\/strong> dans l\u2019aluminium, des valeurs plus faibles dans les mati\u00e8res plastiques. Comme l\u2019appareil mesure un temps, la conversion en \u00e9paisseur exige la vitesse correcte : utiliser une valeur erron\u00e9e produit une mesure syst\u00e9matiquement fausse. <\/p>\n\n<p class=\"wp-block-paragraph\">C\u2019est pourquoi les \u00e9paisseurm\u00e8tres permettent de s\u00e9lectionner le mat\u00e9riau ou de saisir manuellement la vitesse, et pr\u00e9voient le <strong>calibrage sur une \u00e9paisseur connue<\/strong> (une cale de r\u00e9f\u00e9rence) afin de d\u00e9terminer avec exactitude la vitesse r\u00e9elle du lot examin\u00e9.<\/p>\n\n<h2 id=\"misura\" class=\"wp-block-heading has-ti-accent-color has-text-color\">Mesurer la vitesse du son<\/h2>\n\n<p class=\"wp-block-paragraph\">La d\u00e9marche inverse est tout aussi utile : en mesurant le temps de vol sur une pi\u00e8ce d\u2019<strong>\u00e9paisseur connue<\/strong>, l\u2019appareil calcule la vitesse du son dans le mat\u00e9riau. Certains appareils disposent d\u2019un <strong>mode vitesse (VX)<\/strong> d\u00e9di\u00e9, qui exprime la mesure directement en m\/s. <\/p>\n\n<p class=\"wp-block-paragraph\">La vitesse ainsi obtenue est un indicateur des propri\u00e9t\u00e9s du mat\u00e9riau : dans la <strong>fonte \u00e0 graphite sph\u00e9ro\u00efdal<\/strong>, par exemple, la vitesse du son est corr\u00e9l\u00e9e au degr\u00e9 de <strong>nodularit\u00e9<\/strong> du graphite, donc aux propri\u00e9t\u00e9s m\u00e9caniques ; des variations de vitesse signalent des diff\u00e9rences de microstructure ou de traitement.<\/p>\n\n<h2 id=\"fattori\" class=\"wp-block-heading has-ti-accent-color has-text-color\">Facteurs qui influencent la vitesse<\/h2>\n\n<ul class=\"wp-block-list is-style-checkbox has-ti-accent-color has-text-color has-link-color wp-elements-3\">\n<li><strong>Type de mat\u00e9riau<\/strong> et alliage : chaque mat\u00e9riau a une vitesse caract\u00e9ristique.<\/li>\n\n<li><strong>Temp\u00e9rature<\/strong> : la vitesse varie avec la temp\u00e9rature de la pi\u00e8ce, \u00e0 compenser dans les mesures \u00e0 haute temp\u00e9rature.<\/li>\n\n<li><strong>Microstructure<\/strong> et traitements thermiques : ils influencent la densit\u00e9 et l\u2019\u00e9lasticit\u00e9.<\/li>\n\n<li><strong>Anisotropie<\/strong> : dans certains mat\u00e9riaux, la vitesse d\u00e9pend de la direction.<\/li>\n<\/ul>\n\n<h2 id=\"strumenti\" class=\"wp-block-heading has-ti-accent-color has-text-color\">Appareils et bonnes pratiques<\/h2>\n\n<p class=\"wp-block-paragraph\">Pour des mesures exactes, il convient de toujours <strong>calibrer<\/strong> l\u2019appareil sur un \u00e9chantillon du m\u00eame mat\u00e9riau et \u00e0 la m\u00eame temp\u00e9rature que la pi\u00e8ce \u00e0 mesurer. Les \u00e9paisseurm\u00e8tres Dakota NDT distribu\u00e9s par RODER permettent le r\u00e9glage de la vitesse, le calibrage \u00e0 un ou deux points et, sur les mod\u00e8les avanc\u00e9s, la mesure directe de la vitesse. Vous trouverez les mod\u00e8les dans les pages de catalogue associ\u00e9es.  <\/p>\n\n<h2 id=\"prodotti-collegati\" class=\"wp-block-heading has-ti-accent-color has-text-color\">Produits associ\u00e9s<\/h2>\n\n<p class=\"wp-block-paragraph\">Les instruments RODER pour ce th\u00e8me. Rendez-vous sur les pages de catalogue pour les mod\u00e8les, les donn\u00e9es techniques et la documentation. <\/p>\n\n<div class=\"wp-block-group is-layout-grid wp-container-core-group-is-layout-b251d530 wp-block-group-is-layout-grid\">\n<div class=\"wp-block-group has-border-color has-white-background-color has-background is-layout-constrained wp-container-core-group-is-layout-10ff9433 wp-block-group-is-layout-constrained\" style=\"border-color:#e0e0e0;border-width:1px;border-radius:8px;padding:16px\">\n<figure class=\"wp-block-image size-large has-custom-border\"><a href=\"https:\/\/roder.it\/fr\/produits\/epaisseurmetres-a-ultrasons\/\"><img decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/01\/zx-corrosion-thickness-gauges.jpg\" alt=\"&#xC9;paisseurm&#xE8;tres &#xE0; ultrasons Dakota\" style=\"border-radius:6px;aspect-ratio:4\/3;object-fit:contain\"\/><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" style=\"font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.385), 17px);\"><a href=\"https:\/\/roder.it\/fr\/produits\/epaisseurmetres-a-ultrasons\/\">\u00c9paisseurm\u00e8tres \u00e0 ultrasons Dakota<\/a><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:14px\">\u00c9paisseurm\u00e8tres UT pour corrosion et pr\u00e9cision (s\u00e9ries ZX, CMX, MX, PMX, CMX10-DL).<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-custom-font-size wp-element-button\" href=\"https:\/\/roder.it\/fr\/produits\/epaisseurmetres-a-ultrasons\/\" style=\"font-size:14px\">D\u00e9couvrir le catalogue<\/a><\/div>\n<\/div>\n<\/div>\n\n<div class=\"wp-block-group has-border-color has-white-background-color has-background is-layout-constrained wp-container-core-group-is-layout-10ff9433 wp-block-group-is-layout-constrained\" style=\"border-color:#e0e0e0;border-width:1px;border-radius:8px;padding:16px\">\n<figure class=\"wp-block-image size-large has-custom-border\"><a href=\"https:\/\/roder.it\/fr\/produits\/detecteurs-de-defauts-a-ultrasons\/\"><img decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-fx81-strumento_fx81_top_di_gamma_strumenti_per_ispezione_ad_ultrasuoni-web_image-700x700-1.webp\" alt=\"D&#xE9;tecteurs de d&#xE9;fauts par ultrasons\" style=\"border-radius:6px;aspect-ratio:4\/3;object-fit:contain\"\/><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" style=\"font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.385), 17px);\"><a href=\"https:\/\/roder.it\/fr\/produits\/detecteurs-de-defauts-a-ultrasons\/\">D\u00e9tecteurs de d\u00e9fauts par ultrasons<\/a><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:14px\">Flaw detectors FX71-DL et FX81-DL avec kits DAC, AWS, TCG, DGS.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-custom-font-size wp-element-button\" href=\"https:\/\/roder.it\/fr\/produits\/detecteurs-de-defauts-a-ultrasons\/\" style=\"font-size:14px\">D\u00e9couvrir le catalogue<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<h2 id=\"faq\" class=\"wp-block-heading has-ti-accent-color has-text-color\">Questions fr\u00e9quentes<\/h2>\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\"><strong class=\"schema-faq-question\">Pourquoi dois-je r\u00e9gler la vitesse du son ?<\/strong><p class=\"schema-faq-answer\">Parce que l\u2019\u00e9paisseurm\u00e8tre mesure un temps de vol et le convertit en \u00e9paisseur \u00e0 l\u2019aide de la vitesse : une valeur erron\u00e9e produit une mesure erron\u00e9e.<\/p><\/div><div class=\"schema-faq-section\"><strong class=\"schema-faq-question\">Quelle est la vitesse du son dans l\u2019acier ?<\/strong><p class=\"schema-faq-answer\">Environ 5920 m\/s ; dans l\u2019aluminium environ 6320 m\/s. Chaque mat\u00e9riau a sa propre valeur. <\/p><\/div><div class=\"schema-faq-section\"><strong class=\"schema-faq-question\">Comment d\u00e9termine-t-on la vitesse d\u2019un mat\u00e9riau ?<\/strong><p class=\"schema-faq-answer\">En mesurant le temps de vol sur une pi\u00e8ce d\u2019\u00e9paisseur connue : l\u2019appareil calcule la vitesse correspondante.<\/p><\/div><div class=\"schema-faq-section\"><strong class=\"schema-faq-question\">La vitesse dit-elle quelque chose sur le mat\u00e9riau ?<\/strong><p class=\"schema-faq-answer\">Oui : elle est corr\u00e9l\u00e9e \u00e0 la densit\u00e9, \u00e0 l\u2019\u00e9lasticit\u00e9 et \u00e0 la microstructure ; dans la fonte \u00e0 graphite sph\u00e9ro\u00efdal, elle indique le degr\u00e9 de nodularit\u00e9.<\/p><\/div><\/div>\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h4 class=\"wp-block-heading has-ti-accent-color has-text-color has-link-color wp-elements-4\">Contacts &amp; Informations<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Contact pour informations g\u00e9n\u00e9rales : <a href=\"mailto:info@roder.it\">info@roder.it<\/a><br\/><br\/>Division Vision Industrielle de RODER : <a href=\"https:\/\/www.visiotronix.com\/\">www.visiotronix.com<\/a><br\/>Division Instruments RODER : <a href=\"https:\/\/www.visiotronix.com\/\">www.innovacheck.com<\/a><br\/>En savoir plus sur RODER : <a href=\"https:\/\/roder.it\/fr\/contatti\/\">qui sommes-nous<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les informations contenues dans ce site web sont fournies \u00e0 titre purement informatif. Bien qu&rsquo;elles aient \u00e9t\u00e9 r\u00e9dig\u00e9es avec le plus grand soin, elles ne constituent ni une offre contractuelle ni un engagement de fourniture. Elles peuvent contenir des erreurs de transcription, de traduction ou de typographie. Pour des informations pr\u00e9cises et \u00e0 jour, nous vous prions de contacter directement notre soci\u00e9t\u00e9.   <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Note :<\/strong> Certaines images pr\u00e9sentes sur ce site web ont \u00e9t\u00e9 volontairement g\u00e9n\u00e9r\u00e9es \u00e0 l&rsquo;aide de l&rsquo;intelligence artificielle (IA). En effet, pour de nombreuses applications et projets, les photographies de l&rsquo;installation ou du syst\u00e8me r\u00e9el ne peuvent \u00eatre divulgu\u00e9es en raison d&rsquo;accords de confidentialit\u00e9, de clauses contractuelles 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<\/div>\n","protected":false},"excerpt":{"rendered":"<p>La vitesse du son est le param\u00e8tre qui relie le temps de vol de l\u2019impulsion \u00e0 l\u2019\u00e9paisseur : la conna\u00eetre avec pr\u00e9cision est essentiel pour la mesure par ultrasons, et sa mesure permet \u00e9galement de caract\u00e9riser les mat\u00e9riaux. La mesure d\u2019\u00e9paisseur par ultrasons repose sur la relation s = v \u00d7 t \/ 2, o\u00f9 [&hellip;]<\/p>\n","protected":false},"author":157040980,"featured_media":0,"parent":19975,"menu_order":4,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_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,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"footnotes":""},"class_list":["post-25308","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Vitesse du son des mat\u00e9riaux - RODER SRL<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/roder.it\/fr\/technologies\/ultrasons\/vitesse-du-son-des-materiaux\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Vitesse du son des mat\u00e9riaux - RODER SRL\" \/>\n<meta property=\"og:description\" content=\"La vitesse du son est le param\u00e8tre qui relie le temps de vol de l\u2019impulsion \u00e0 l\u2019\u00e9paisseur : la conna\u00eetre avec pr\u00e9cision est essentiel pour la mesure par ultrasons, et sa mesure permet \u00e9galement de caract\u00e9riser les mat\u00e9riaux. La mesure d\u2019\u00e9paisseur par ultrasons repose sur la relation s = v \u00d7 t \/ 2, o\u00f9 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/roder.it\/fr\/technologies\/ultrasons\/vitesse-du-son-des-materiaux\/\" \/>\n<meta property=\"og:site_name\" content=\"RODER SRL\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-02T13:48:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-cmx10-strumento_di_misura_ad_ultrasuoni_cmx10_per_misura_cricche_e_difetti-web_image-1200x1200-1.webp\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/roder.it\\\/fr\\\/technologies\\\/ultrasons\\\/vitesse-du-son-des-materiaux\\\/\",\"url\":\"https:\\\/\\\/roder.it\\\/fr\\\/technologies\\\/ultrasons\\\/vitesse-du-son-des-materiaux\\\/\",\"name\":\"Vitesse du son des mat\u00e9riaux - RODER SRL\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/roder.it\\\/fr\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/roder.it\\\/fr\\\/technologies\\\/ultrasons\\\/vitesse-du-son-des-materiaux\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/roder.it\\\/fr\\\/technologies\\\/ultrasons\\\/vitesse-du-son-des-materiaux\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/roder.it\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/dakota_ndt-cmx10-strumento_di_misura_ad_ultrasuoni_cmx10_per_misura_cricche_e_difetti-web_image-1200x1200-1.webp\",\"datePublished\":\"2026-07-07T13:42:42+00:00\",\"dateModified\":\"2026-10-02T13:48:42+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/roder.it\\\/fr\\\/technologies\\\/ultrasons\\\/vitesse-du-son-des-materiaux\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/roder.it\\\/fr\\\/technologies\\\/ultrasons\\\/vitesse-du-son-des-materiaux\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/roder.it\\\/fr\\\/technologies\\\/ultrasons\\\/vitesse-du-son-des-materiaux\\\/#primaryimage\",\"url\":\"https:\\\/\\\/roder.it\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/dakota_ndt-cmx10-strumento_di_misura_ad_ultrasuoni_cmx10_per_misura_cricche_e_difetti-web_image-1200x1200-1.webp\",\"contentUrl\":\"https:\\\/\\\/roder.it\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/dakota_ndt-cmx10-strumento_di_misura_ad_ultrasuoni_cmx10_per_misura_cricche_e_difetti-web_image-1200x1200-1.webp\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/roder.it\\\/fr\\\/technologies\\\/ultrasons\\\/vitesse-du-son-des-materiaux\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/roder.it\\\/fr\\\/accueil\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Technologies\",\"item\":\"https:\\\/\\\/roder.it\\\/fr\\\/technologies\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Ultrasons\",\"item\":\"https:\\\/\\\/roder.it\\\/fr\\\/technologies\\\/ultrasons\\\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Vitesse du son des mat\u00e9riaux\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/roder.it\\\/fr\\\/#website\",\"url\":\"https:\\\/\\\/roder.it\\\/fr\\\/\",\"name\":\"RODER SRL\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/roder.it\\\/fr\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/roder.it\\\/fr\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/roder.it\\\/fr\\\/#organization\",\"name\":\"RODER SRL\",\"url\":\"https:\\\/\\\/roder.it\\\/fr\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/roder.it\\\/fr\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/roder.it\\\/wp-content\\\/uploads\\\/2019\\\/05\\\/logo_roder_standard_sfondo_bianco.png\",\"contentUrl\":\"https:\\\/\\\/roder.it\\\/wp-content\\\/uploads\\\/2019\\\/05\\\/logo_roder_standard_sfondo_bianco.png\",\"width\":691,\"height\":80,\"caption\":\"RODER SRL\"},\"image\":{\"@id\":\"https:\\\/\\\/roder.it\\\/fr\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Vitesse du son des mat\u00e9riaux - RODER SRL","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/roder.it\/fr\/technologies\/ultrasons\/vitesse-du-son-des-materiaux\/","og_locale":"fr_FR","og_type":"article","og_title":"Vitesse du son des mat\u00e9riaux - RODER SRL","og_description":"La vitesse du son est le param\u00e8tre qui relie le temps de vol de l\u2019impulsion \u00e0 l\u2019\u00e9paisseur : la conna\u00eetre avec pr\u00e9cision est essentiel pour la mesure par ultrasons, et sa mesure permet \u00e9galement de caract\u00e9riser les mat\u00e9riaux. La mesure d\u2019\u00e9paisseur par ultrasons repose sur la relation s = v \u00d7 t \/ 2, o\u00f9 [&hellip;]","og_url":"https:\/\/roder.it\/fr\/technologies\/ultrasons\/vitesse-du-son-des-materiaux\/","og_site_name":"RODER SRL","article_modified_time":"2026-10-02T13:48:42+00:00","og_image":[{"url":"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-cmx10-strumento_di_misura_ad_ultrasuoni_cmx10_per_misura_cricche_e_difetti-web_image-1200x1200-1.webp","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_misc":{"Dur\u00e9e de lecture estim\u00e9e":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":["WebPage","FAQPage"],"@id":"https:\/\/roder.it\/fr\/technologies\/ultrasons\/vitesse-du-son-des-materiaux\/","url":"https:\/\/roder.it\/fr\/technologies\/ultrasons\/vitesse-du-son-des-materiaux\/","name":"Vitesse du son des mat\u00e9riaux - RODER SRL","isPartOf":{"@id":"https:\/\/roder.it\/fr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/roder.it\/fr\/technologies\/ultrasons\/vitesse-du-son-des-materiaux\/#primaryimage"},"image":{"@id":"https:\/\/roder.it\/fr\/technologies\/ultrasons\/vitesse-du-son-des-materiaux\/#primaryimage"},"thumbnailUrl":"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-cmx10-strumento_di_misura_ad_ultrasuoni_cmx10_per_misura_cricche_e_difetti-web_image-1200x1200-1.webp","datePublished":"2026-07-07T13:42:42+00:00","dateModified":"2026-10-02T13:48:42+00:00","breadcrumb":{"@id":"https:\/\/roder.it\/fr\/technologies\/ultrasons\/vitesse-du-son-des-materiaux\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/roder.it\/fr\/technologies\/ultrasons\/vitesse-du-son-des-materiaux\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/roder.it\/fr\/technologies\/ultrasons\/vitesse-du-son-des-materiaux\/#primaryimage","url":"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-cmx10-strumento_di_misura_ad_ultrasuoni_cmx10_per_misura_cricche_e_difetti-web_image-1200x1200-1.webp","contentUrl":"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-cmx10-strumento_di_misura_ad_ultrasuoni_cmx10_per_misura_cricche_e_difetti-web_image-1200x1200-1.webp"},{"@type":"BreadcrumbList","@id":"https:\/\/roder.it\/fr\/technologies\/ultrasons\/vitesse-du-son-des-materiaux\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/roder.it\/fr\/accueil\/"},{"@type":"ListItem","position":2,"name":"Technologies","item":"https:\/\/roder.it\/fr\/technologies\/"},{"@type":"ListItem","position":3,"name":"Ultrasons","item":"https:\/\/roder.it\/fr\/technologies\/ultrasons\/"},{"@type":"ListItem","position":4,"name":"Vitesse du son des mat\u00e9riaux"}]},{"@type":"WebSite","@id":"https:\/\/roder.it\/fr\/#website","url":"https:\/\/roder.it\/fr\/","name":"RODER SRL","description":"","publisher":{"@id":"https:\/\/roder.it\/fr\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/roder.it\/fr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/roder.it\/fr\/#organization","name":"RODER SRL","url":"https:\/\/roder.it\/fr\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/roder.it\/fr\/#\/schema\/logo\/image\/","url":"https:\/\/roder.it\/wp-content\/uploads\/2019\/05\/logo_roder_standard_sfondo_bianco.png","contentUrl":"https:\/\/roder.it\/wp-content\/uploads\/2019\/05\/logo_roder_standard_sfondo_bianco.png","width":691,"height":80,"caption":"RODER SRL"},"image":{"@id":"https:\/\/roder.it\/fr\/#\/schema\/logo\/image\/"}}]}},"jetpack_likes_enabled":false,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/PaWZeX-6Ac","jetpack-related-posts":[{"id":19865,"url":"https:\/\/roder.it\/fr\/applications\/siderurgie-et-metaux\/","url_meta":{"origin":25308,"position":0},"title":"Sid\u00e9rurgie et m\u00e9taux","author":"GSM","date":"29 juin 2026","format":false,"excerpt":"Dans la sid\u00e9rurgie et la transformation des m\u00e9taux, la mesure de vitesse et de longueur est critique : mat\u00e9riaux chauds, vitesses de ligne \u00e9lev\u00e9es et environnements s\u00e9v\u00e8res mettent \u00e0 rude \u00e9preuve tout capteur \u00e0 contact. Les v\u00e9locim\u00e8tres optiques ASTech mesurent sans contact, \u00e9liminant l\u2019usure et le glissement tout en conservant\u2026","rel":"","context":"Article similaire","block_context":{"text":"Article similaire","link":""},"img":{"alt_text":"sistemi di misura dello spessore e della larghezza per nastri metallici su impianti di decapaggio e taglio lamiera","src":"https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2022\/10\/dimes_controllo_spessore_applicazione_linea.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2022\/10\/dimes_controllo_spessore_applicazione_linea.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2022\/10\/dimes_controllo_spessore_applicazione_linea.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2022\/10\/dimes_controllo_spessore_applicazione_linea.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":23967,"url":"https:\/\/roder.it\/fr\/controles\/vitesse-et-rotation-en-mouvement\/vitesse-et-longueur-des-materiaux\/","url_meta":{"origin":25308,"position":1},"title":"Vitesse et longueur des mat\u00e9riaux","author":"GSM","date":"30 juin 2026","format":false,"excerpt":"La vitesse et la longueur d'un mat\u00e9riau en mouvement sont deux grandeurs \u00e9troitement li\u00e9es : en mesurant la premi\u00e8re, on obtient la seconde, par int\u00e9gration dans le temps. Ce lien est au c\u0153ur du contr\u00f4le des proc\u00e9d\u00e9s continus. Les v\u00e9locim\u00e8tres et codeurs optiques mesurent les deux grandeurs avec un seul\u2026","rel":"","context":"Article similaire","block_context":{"text":"Article similaire","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":17953,"url":"https:\/\/roder.it\/fr\/technologies\/","url_meta":{"origin":25308,"position":2},"title":"Technologies","author":"GSM","date":"29 juin 2026","format":false,"excerpt":"La mesure de vitesse et de longueur sans contact est aujourd'hui une technologie cl\u00e9 pour le contr\u00f4le de process dans de nombreux secteurs industriels. Les technologies optiques permettent de d\u00e9tecter le mouvement d'un mat\u00e9riau sans le toucher, en \u00e9liminant l'usure, le glissement et les arr\u00eats machine typiques des roues de\u2026","rel":"","context":"Article similaire","block_context":{"text":"Article similaire","link":""},"img":{"alt_text":"archiviazione dati sul cloud con tecnologie wireless - industria 4.0","src":"https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2019\/05\/composizione_trasmissione_cloud.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2019\/05\/composizione_trasmissione_cloud.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2019\/05\/composizione_trasmissione_cloud.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2019\/05\/composizione_trasmissione_cloud.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":26261,"url":"https:\/\/roder.it\/fr\/epaisseurmetres-a-ultrasons-de-precision\/","url_meta":{"origin":25308,"position":3},"title":"\u00c9paisseurm\u00e8tres \u00e0 ultrasons de pr\u00e9cision","author":"GSM","date":"13 mai 2026","format":false,"excerpt":"Mesureurs d'\u00e9paisseur UT mono-\u00e9l\u00e9ment \u00e0 haute r\u00e9solution pour la mesure sur mat\u00e9riaux minces et composites.","rel":"","context":"Article similaire","block_context":{"text":"Article similaire","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2026\/05\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_PMX3-DL_applicazione_reale_di_misura_su_pezzo_meccanico.webp?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2026\/05\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_PMX3-DL_applicazione_reale_di_misura_su_pezzo_meccanico.webp?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2026\/05\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_PMX3-DL_applicazione_reale_di_misura_su_pezzo_meccanico.webp?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":19958,"url":"https:\/\/roder.it\/fr\/technologies\/optique-et-laser\/","url_meta":{"origin":25308,"position":4},"title":"Optique et LASER","author":"GSM","date":"29 juin 2026","format":false,"excerpt":"Les technologies optiques et laser permettent de mesurer la vitesse et la longueur d\u2019un mat\u00e9riau en mouvement sans aucun contact physique. Sur cette page, nous analysons, avec une approche technique, les principes sur lesquels reposent les v\u00e9locim\u00e8tres et codeurs optiques ASTech : le filtre spatial de la s\u00e9rie VLM500 et\u2026","rel":"","context":"Article similaire","block_context":{"text":"Article similaire","link":""},"img":{"alt_text":"scanner laser misura di profilo e posizione","src":"https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2025\/02\/application_note_0001_scansione_laser_rilievo_posizione_aletta_per_saldatura_720x720.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2025\/02\/application_note_0001_scansione_laser_rilievo_posizione_aletta_per_saldatura_720x720.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2025\/02\/application_note_0001_scansione_laser_rilievo_posizione_aletta_per_saldatura_720x720.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2025\/02\/application_note_0001_scansione_laser_rilievo_posizione_aletta_per_saldatura_720x720.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":18002,"url":"https:\/\/roder.it\/fr\/controles\/","url_meta":{"origin":25308,"position":5},"title":"Contr\u00f4les","author":"GSM","date":"13 mai 2026","format":false,"excerpt":"Contr\u00f4les et mesures industriels Les grandeurs physiques du contr\u00f4le qualit\u00e9 : ce qu'elles repr\u00e9sentent, comment on les mesure et avec quels instruments. La section Contr\u00f4les r\u00e9unit les pages consacr\u00e9es aux grandeurs physiques mesur\u00e9es dans le contr\u00f4le qualit\u00e9 et le contr\u00f4le de process industriel : dimension, vitesse, temp\u00e9rature, pression, force, duret\u00e9,\u2026","rel":"","context":"Article similaire","block_context":{"text":"Article similaire","link":""},"img":{"alt_text":"Vision check dynamic controllo di difetti di schede elettroniche e assemblati meccanici","src":"https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2025\/07\/visio_check_dynamic_per_ispezione_linee_a_pallet.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2025\/07\/visio_check_dynamic_per_ispezione_linee_a_pallet.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2025\/07\/visio_check_dynamic_per_ispezione_linee_a_pallet.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2025\/07\/visio_check_dynamic_per_ispezione_linee_a_pallet.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2025\/07\/visio_check_dynamic_per_ispezione_linee_a_pallet.png?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/roder.it\/wp-content\/uploads\/2025\/07\/visio_check_dynamic_per_ispezione_linee_a_pallet.png?resize=1400%2C800&ssl=1 4x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/roder.it\/fr\/wp-json\/wp\/v2\/pages\/25308","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/roder.it\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/roder.it\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/roder.it\/fr\/wp-json\/wp\/v2\/users\/157040980"}],"replies":[{"embeddable":true,"href":"https:\/\/roder.it\/fr\/wp-json\/wp\/v2\/comments?post=25308"}],"version-history":[{"count":3,"href":"https:\/\/roder.it\/fr\/wp-json\/wp\/v2\/pages\/25308\/revisions"}],"predecessor-version":[{"id":25311,"href":"https:\/\/roder.it\/fr\/wp-json\/wp\/v2\/pages\/25308\/revisions\/25311"}],"up":[{"embeddable":true,"href":"https:\/\/roder.it\/fr\/wp-json\/wp\/v2\/pages\/19975"}],"wp:attachment":[{"href":"https:\/\/roder.it\/fr\/wp-json\/wp\/v2\/media?parent=25308"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}