{"id":5337,"date":"2026-09-07T12:39:43","date_gmt":"2026-09-07T12:39:43","guid":{"rendered":"https:\/\/ultrasuonindt.it\/applications\/aerospace-and-defence\/inspection-of-composites-and-sandwich-structures\/"},"modified":"2026-09-17T21:19:47","modified_gmt":"2026-09-17T21:19:47","slug":"inspection-of-composites-and-sandwich-structures","status":"publish","type":"page","link":"https:\/\/ultrasuonindt.it\/en\/applications\/aerospace-and-defence\/inspection-of-composites-and-sandwich-structures\/","title":{"rendered":"Inspection of composites and sandwich structures"},"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-full 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-immagine_con_mano_che_tiene_in_posizione_sonda_ad-ultrasuoni-web-1200x1200-1.webp?resize=1200%2C1200&#038;ssl=1\" alt=\"Ultrasonic probe in position during a measurement on composite material\" class=\"wp-image-982 has-border-color\" 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-immagine_con_mano_che_tiene_in_posizione_sonda_ad-ultrasuoni-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-immagine_con_mano_che_tiene_in_posizione_sonda_ad-ultrasuoni-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-immagine_con_mano_che_tiene_in_posizione_sonda_ad-ultrasuoni-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-immagine_con_mano_che_tiene_in_posizione_sonda_ad-ultrasuoni-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-immagine_con_mano_che_tiene_in_posizione_sonda_ad-ultrasuoni-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=\"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\">With composites the problem is reversed: the material <strong>attenuates the ultrasound strongly<\/strong> and the backwall echo comes back weak. High transmission energy is needed, and feasibility has to be verified on the actual laminate. <\/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\"><li style=\"list-style:none\"><strong style=\"color:#225f78\">\u2713<\/strong> <strong>High penetration<\/strong> for fibre laminates and plastics<\/li><li style=\"list-style:none\"><strong style=\"color:#225f78\">\u2713<\/strong> <strong>Low frequency<\/strong> and high transmission energy<\/li><li style=\"list-style:none\"><strong style=\"color:#225f78\">\u2713<\/strong> <strong>A-Scan<\/strong> indispensable: the echo has to be interpreted, not merely read<\/li><li style=\"list-style:none\"><strong style=\"color:#225f78\">\u2713<\/strong> Measurement on the <strong>single layer<\/strong> in multi-material panels<\/li><li style=\"list-style:none\"><strong style=\"color:#225f78\">\u2713<\/strong> Sound velocity <strong>derived on the laminate<\/strong>, not taken from a table<\/li><li style=\"list-style:none\"><strong style=\"color:#225f78\">\u2713<\/strong> Feasibility <strong>verified on a sample<\/strong> before supply<\/li><\/ul>\n<\/div>\n<\/div>\n\n<div style=\"height:28px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\">A metal is homogeneous and returns a clean backwall echo. A composite does not: it is made of fibres and matrix with different acoustic properties, and every interface scatters and attenuates the energy. The result is that the pulse reaches the back wall weakened and returns weaker still; with the transmission energy of an ordinary instrument, often no usable signal comes back at all.  <\/p>\n\n<p class=\"wp-block-paragraph\">The answer is the opposite of the one used for precision on metals: the <strong>frequency<\/strong> is lowered, because low frequencies penetrate further, and the <strong>transmission energy<\/strong> is increased. This is the logic on which the <strong>PMX4-DL<\/strong> is built, the model in the range dedicated to attenuating materials. What is gained in the ability to get through the material is lost in resolution.  <\/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>Need help choosing the right product?<\/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\">Contact us<\/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\">On <strong>sandwich structures<\/strong> the problem grows further: between two composite skins there is a honeycomb or a foam, that is an interface which reflects nearly all the energy. In practice the skin is measured, not the panel: contact ultrasound does not cross the core. This has to be said plainly, because it is a recurring request.  <\/p>\n\n<h2 class=\"wp-block-heading\" style=\"color:#225f78\">What can actually be measured<\/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\">Material<\/th><th style=\"background-color:#225f78;color:#ffffff;padding:10px\">Thickness measurement<\/th><th style=\"background-color:#225f78;color:#ffffff;padding:10px\">Note<\/th><\/tr><\/thead><tbody><tr><td><strong>Fibre laminate<\/strong><\/td><td>Possible with high penetration<\/td><td>Velocity to be derived on the specific laminate<\/td><\/tr><tr><td><strong>Plastics and rubber<\/strong><\/td><td>Possible with high penetration<\/td><td>Highly attenuating material: check on a sample<\/td><\/tr><tr><td><strong>Skin of a sandwich<\/strong><\/td><td>Possible<\/td><td>The skin is measured, not the whole panel<\/td><\/tr><tr><td><strong>Honeycomb core<\/strong><\/td><td>Not with contact ultrasound<\/td><td>The interface reflects nearly all the energy<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\" style=\"color:#225f78\">Why the test on a sample is mandatory<\/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-full 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-sonda_alta_precisione_per_misure_di_spessore_immagine_applicativa-web-1200x1200-1.webp?resize=1200%2C1200&#038;ssl=1\" alt=\"Probe for thickness measurements on special materials\" class=\"wp-image-994 has-border-color\" 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-sonda_alta_precisione_per_misure_di_spessore_immagine_applicativa-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-sonda_alta_precisione_per_misure_di_spessore_immagine_applicativa-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-sonda_alta_precisione_per_misure_di_spessore_immagine_applicativa-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-sonda_alta_precisione_per_misure_di_spessore_immagine_applicativa-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-sonda_alta_precisione_per_misure_di_spessore_immagine_applicativa-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<p class=\"wp-block-paragraph\">Two laminates with the same commercial name can behave very differently under ultrasound.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Attenuation<\/strong> depends on fibre, matrix, volume fraction and porosity<\/li><li>The <strong>sound velocity<\/strong> changes with the lay-up sequence and the direction<\/li><li>There are no reliable <strong>table values<\/strong>: they are derived on the part<\/li><li>A <strong>sample of known thickness<\/strong> of the same laminate is needed<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">For this reason, before confirming a supply, we verify feasibility on your material: it is the only way to give a serious answer.<\/p>\n<\/div>\n<\/div>\n\n<h2 class=\"wp-block-heading\" style=\"color:#225f78\">Recommended instruments<\/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\">Instrument<\/th><th style=\"background-color:#225f78;color:#ffffff;padding:10px\">Why in this application<\/th><\/tr><\/thead><tbody><tr><td><a href=\"https:\/\/ultrasuonindt.it\/en\/products\/thickness-gauges\/dakota-pmx4-dl-high-penetration-gauge\/\"><strong>Dakota PMX4-DL<\/strong><\/a><\/td><td>The dedicated model: high energy for composites, plastics and rubber<\/td><\/tr><tr><td><a href=\"https:\/\/ultrasuonindt.it\/en\/products\/thickness-gauges\/dakota-pmx2-dl-precision-gauge-with-a-scan\/\"><strong>Dakota PMX2-DL<\/strong><\/a><\/td><td>A-Scan and B-Scan to interpret difficult echoes<\/td><\/tr><tr><td><a href=\"https:\/\/ultrasuonindt.it\/en\/products\/flaw-detectors\/dakota-fx81-dl-benchtop-flaw-detector\/\"><strong>Dakota FX81-DL<\/strong><\/a><\/td><td>Searching for delaminations in the laboratory, with a large display<\/td><\/tr><tr><td><a href=\"https:\/\/ultrasuonindt.it\/en\/products\/probes-and-accessories\/transducers-for-precision-thickness-gauges\/\"><strong>Low-frequency probes<\/strong><\/a><\/td><td>Penetration is obtained by going down in frequency<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\" style=\"color:#225f78\">Frequently asked questions<\/h2>\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1757843001000\"><strong class=\"schema-faq-question\">Can the total thickness of a sandwich panel be measured?<\/strong><p class=\"schema-faq-answer\">With contact ultrasound, no. The honeycomb or foam core forms an interface that reflects nearly all the energy, so the beam does not reach the opposite skin. What is measured is the thickness of the skin the probe rests on, not the whole stack.  <\/p><\/div><div class=\"schema-faq-section\" id=\"faq-question-1757843002000\"><strong class=\"schema-faq-question\">Why is a sample of the same material needed?<\/strong><p class=\"schema-faq-answer\">Because in composites the sound velocity and the attenuation depend on fibre, matrix, volume fraction, porosity and lay-up sequence: there are no reliable table values as there are for steels. The velocity has to be derived by measuring a sample of known thickness of the same laminate. <\/p><\/div><div class=\"schema-faq-section\" id=\"faq-question-1757843003000\"><strong class=\"schema-faq-question\">Does the instrument also detect delaminations?<\/strong><p class=\"schema-faq-answer\">A thickness gauge measures thickness, it does not look for flaws: a delamination can make a reading appear anomalous, but interpreting it requires the A-Scan and is not equivalent to a flaw detection inspection. For the systematic search for delaminations a flaw detector with a dedicated procedure is used. <\/p><\/div><\/div>\n\n<p class=\"wp-block-paragraph\">Back to <a href=\"https:\/\/ultrasuonindt.it\/en\/applications\/aerospace-and-defence\/\">Aerospace and Defence<\/a>. For a feasibility check on your laminate, <a href=\"https:\/\/ultrasuonindt.it\/en\/contact\/\">write to us<\/a> stating the type of fibre, the matrix and the nominal thickness. <\/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\">Further information and contacts <\/h5>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\"><a href=\"http:\/\/www.roder.it\">Systems division and sensor integration partner : www.roder.it<\/a><br\/><a href=\"https:\/\/ultrasuonindt.it\/chi-siamo\/\">More information about RODER SRL : about us<\/a><br\/>Contact for general information : <a href=\"mailto:info@roder.it\">info@roder.it<\/a><br\/>Contact for information about these products : <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\/>The information contained on this web page is provided for information purposes only. Although it has been compiled with the utmost care, it does not constitute a contractual offer or a binding commitment to supply. It may contain transcription, translation or typographical errors. For precise and up-to-date information, please contact our company directly.    <\/p>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">Some images on this website have been intentionally generated using Artificial Intelligence (AI). This is because, for many applications and projects, it is not possible to disclose photographs of the installation or of the actual system due to confidentiality agreements, confidentiality clauses and non-disclosure agreements (NDAs). <\/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>With composites the problem is reversed: the material attenuates the ultrasound strongly and the backwall echo comes back weak. High transmission energy is needed, and feasibility has to be verified on the actual laminate. \u2713 High penetration for fibre laminates and plastics \u2713 Low frequency and high transmission energy \u2713 A-Scan indispensable: the echo has [&hellip;]<\/p>\n","protected":false},"author":157040980,"featured_media":3329,"parent":3185,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_yoast_wpseo_focuskw":"composite thickness measurement","_yoast_wpseo_title":"Inspection of composites and sandwich structures | High penetration","_yoast_wpseo_metadesc":"Thickness measurement on fibre laminates, sandwich panels and attenuating materials with Dakota NDT high-penetration thickness gauges: limits and possibilities.","_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-5337","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Inspection of composites and sandwich structures | High penetration<\/title>\n<meta name=\"description\" content=\"Thickness measurement on fibre laminates, sandwich panels and attenuating materials with Dakota NDT high-penetration thickness gauges: limits and possibilities.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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Inspection is one of the activities that framework requires. \u2713 Document published by the American Welding Society \u2713 Current edition: AWS D1.1\/D1.1M:2025, 23rd edition \u2713 Scope: carbon and\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Dakota NDT FX family ultrasonic flaw detector in field application","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.jpeg?fit=1200%2C837&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.jpeg?fit=1200%2C837&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.jpeg?fit=1200%2C837&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.jpeg?fit=1200%2C837&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.jpeg?fit=1200%2C837&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":6444,"url":"https:\/\/ultrasuonindt.it\/en\/products\/probes-and-accessories\/transducers-for-ultrasonic-flaw-detectors\/","url_meta":{"origin":5337,"position":3},"title":"Transducers for Ultrasonic Flaw Detectors","author":"GSM","date":"6 May 2026","format":false,"excerpt":"Dakota transducers for flaw detectors: shear wave probes (quick change and standard), single element contact, transducer wedges at 45\/60\/70 degrees. For inspecting welds, forgings and composites to AWS, EN ISO and ASME.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Banner presenting transducers for flaw detectors: shear wave probes, single element probes and angle wedges","src":"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/05\/dakota_ndt-trasduttori_flaw-single_element-banner_single_element_2_2-web-387x387-1.webp?fit=387%2C387&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":5434,"url":"https:\/\/ultrasuonindt.it\/en\/applications\/construction-and-infrastructure\/steel-structures-and-heavy-steelwork\/","url_meta":{"origin":5337,"position":4},"title":"Steel structures and heavy steelwork","author":"GSM","date":"7 September 2026","format":false,"excerpt":"On a steel structure visual inspection sees the paint, not the metal. Ultrasonic inspection quantifies the remaining thickness of the sections and checks the structural welds without dismantling anything. \u2713 Remaining thickness measured through the paint, without removing the coating \u2713 Inspection of the welds with shear wave angle beam\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Dakota NDT CX ultrasonic thickness measurement application on fabricated steel parts","src":"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_CX_applicazione_misura_spessore_su_parti_di_carpenteria-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_CX_applicazione_misura_spessore_su_parti_di_carpenteria-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_CX_applicazione_misura_spessore_su_parti_di_carpenteria-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_CX_applicazione_misura_spessore_su_parti_di_carpenteria-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_CX_applicazione_misura_spessore_su_parti_di_carpenteria-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":3272,"url":"https:\/\/ultrasuonindt.it\/en\/applications\/construction-and-infrastructure\/","url_meta":{"origin":5337,"position":5},"title":"Construction and Infrastructure","author":"GSM","date":"7 September 2026","format":false,"excerpt":"On bridges, industrial buildings and water networks the steel asset ages under layers of paint and soil. Ultrasonic measurement quantifies the remaining thickness without demolishing anything, and turns a visual inspection into a figure that can be calculated with. \u2713 Remaining thickness of sections and plate measured through the paint\u2713\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Dakota NDT CX ultrasonic thickness measurement application on fabricated steel parts","src":"https:\/\/i0.wp.com\/ultrasuonindt.it\/wp-content\/uploads\/2026\/04\/dakota_ndt-strumenti_di_misura_ad_ultrasuoni-strumento_CX_applicazione_misura_spessore_su_parti_di_carpenteria-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_CX_applicazione_misura_spessore_su_parti_di_carpenteria-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_CX_applicazione_misura_spessore_su_parti_di_carpenteria-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_CX_applicazione_misura_spessore_su_parti_di_carpenteria-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_CX_applicazione_misura_spessore_su_parti_di_carpenteria-web-1200x1200-1.webp?fit=1200%2C1200&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/ultrasuonindt.it\/en\/wp-json\/wp\/v2\/pages\/5337","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ultrasuonindt.it\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ultrasuonindt.it\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ultrasuonindt.it\/en\/wp-json\/wp\/v2\/users\/157040980"}],"replies":[{"embeddable":true,"href":"https:\/\/ultrasuonindt.it\/en\/wp-json\/wp\/v2\/comments?post=5337"}],"version-history":[{"count":3,"href":"https:\/\/ultrasuonindt.it\/en\/wp-json\/wp\/v2\/pages\/5337\/revisions"}],"predecessor-version":[{"id":6507,"href":"https:\/\/ultrasuonindt.it\/en\/wp-json\/wp\/v2\/pages\/5337\/revisions\/6507"}],"up":[{"embeddable":true,"href":"https:\/\/ultrasuonindt.it\/en\/wp-json\/wp\/v2\/pages\/3185"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ultrasuonindt.it\/en\/wp-json\/wp\/v2\/media\/3329"}],"wp:attachment":[{"href":"https:\/\/ultrasuonindt.it\/en\/wp-json\/wp\/v2\/media?parent=5337"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}