{"id":55288,"date":"2023-02-03T15:18:05","date_gmt":"2023-02-03T13:18:05","guid":{"rendered":"https:\/\/www.iemn.fr\/?p=55288"},"modified":"2023-02-03T15:19:09","modified_gmt":"2023-02-03T13:19:09","slug":"these-el-rammouz-h-realisation-de-matrices-de-micro-transducteurs-acoustiques-application-au-controle-sante-integre","status":"publish","type":"post","link":"https:\/\/www.iemn.fr\/en\/these\/these-2021\/these-el-rammouz-h-realisation-de-matrices-de-micro-transducteurs-acoustiques-application-au-controle-sante-integre.html","title":{"rendered":"THESE : EL RAMMOUZ H. R\u00e9alisation de matrices de micro-transducteurs acoustiques : application au controle sant\u00e9 int\u00e9gr\u00e9"},"content":{"rendered":"<div id='layer_slider_1'  class='avia-layerslider main_color avia-shadow  avia-builder-el-0  el_before_av_heading  avia-builder-el-first  container_wrap sidebar_right'  style='height: 261px;'  ><div id=\"layerslider_58_u9ptvrw7gtxo\" data-ls-slug=\"homepageslider\" class=\"ls-wp-container fitvidsignore ls-selectable\" style=\"width:1140px;height:260px;margin:0 auto;margin-bottom: 0px;\"><div class=\"ls-slide\" data-ls=\"duration:6000;transition2d:5;\"><img loading=\"lazy\" decoding=\"async\" width=\"2600\" height=\"270\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1.jpg\" class=\"ls-bg\" alt=\"\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1.jpg 2600w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-300x31.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-768x80.jpg 768w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-1030x107.jpg 1030w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-1500x156.jpg 1500w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-705x73.jpg 705w\" sizes=\"auto, (max-width: 2600px) 100vw, 2600px\" \/><ls-layer style=\"font-size:14px;text-align:left;font-style:normal;text-decoration:none;text-transform:none;font-weight:700;letter-spacing:0px;border-style:solid;border-color:#000;background-position:0% 0%;background-repeat:no-repeat;width:180px;height:30px;left:0px;top:231px;line-height:32px;color:#ffffff;border-radius:6px 6px 6px 6px;padding-left:50px;background-color:rgba(0, 0, 0, 0.57);\" class=\"ls-l ls-ib-icon ls-text-layer\" data-ls=\"minfontsize:0;minmobilefontsize:0;\"><i class=\"fa fa-quote-right\" style=\"color:#ffffff;margin-right:0.8em;font-size:1em;transform:translateY( -0.125em );\"><\/i>ACTUALITES<\/ls-layer><\/div><\/div><\/div><div id='after_layer_slider_1'  class='main_color av_default_container_wrap container_wrap sidebar_right'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-small alpha units'><div class='post-entry post-entry-type-page post-entry-55288'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_heading-8c7e7e9aa84d2a24fa94313ca5cac7a2\">\n#top .av-special-heading.av-av_heading-8c7e7e9aa84d2a24fa94313ca5cac7a2{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-av_heading-8c7e7e9aa84d2a24fa94313ca5cac7a2 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-av_heading-8c7e7e9aa84d2a24fa94313ca5cac7a2 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-av_heading-8c7e7e9aa84d2a24fa94313ca5cac7a2 av-special-heading-h3  avia-builder-el-1  el_after_av_layerslider  el_before_av_hr  avia-builder-el-first'><h3 class='av-special-heading-tag'  itemprop=\"headline\"  >THESE : EL RAMMOUZ H. R\u00e9alisation de matrices de micro-transducteurs acoustiques : application au controle sant\u00e9 int\u00e9gr\u00e9 <\/h3><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-18u73nj-dad6a947580930e400fc42ba200e80f1\">\n#top .hr.av-18u73nj-dad6a947580930e400fc42ba200e80f1{\nmargin-top:5px;\nmargin-bottom:5px;\n}\n.hr.av-18u73nj-dad6a947580930e400fc42ba200e80f1 .hr-inner{\nwidth:100%;\n}\n<\/style>\n<div  class='hr av-18u73nj-dad6a947580930e400fc42ba200e80f1 hr-custom  avia-builder-el-2  el_after_av_heading  el_before_av_textblock  hr-left hr-icon-no'><span class='hr-inner inner-border-av-border-thin'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-13sqos8-3f81e14b8b37556e5cd633f4e1324ddf'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><\/div><\/section>\n<section  class='av_textblock_section av-jtefqx33-628129dba2299b2ecd65ebfc92eac29d'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><div  class='hr av-kjh3zw-4dff888f744b728a1aca9b3a0971493a hr-default  avia-builder-el-5  avia-builder-el-no-sibling'><span class='hr-inner'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<p><span class=\"titre\">Doctoral thesis in Micro and Nanotechnologies, Universit\u00e9 Polytechnique Hauts-de-France, Lebanese University, 26 February<\/span> <span class=\"annee_parution\">2021<\/span><br \/>\n<span class=\"doi\"><a href=\"https:\/\/www.sudoc.fr\/255504705\" target=\"_blank\" rel=\"noopener\">https:\/\/www.sudoc.fr\/255504705<\/a><\/span><\/p>\n<p><strong>Summary:<\/strong><\/p>\n<p>Les r\u00e9seaux de micro-transducteurs connaissent un fort d\u00e9veloppement afin de r\u00e9pondre aux exigences du contr\u00f4le sant\u00e9 int\u00e9gr\u00e9 des structures. Ce dernier permet d&rsquo;\u00e9valuer en tout moment l&rsquo;\u00e9tat de sant\u00e9 de la structure tout en int\u00e9grant un syst\u00e8me de contr\u00f4le non destructif \u00e0 celle-ci. En effet, un r\u00e9seau de micro-transducteurs permet d&rsquo;acqu\u00e9rir plusieurs signaux en m\u00eame temps sans effectuer un balayage spatial permettant de caract\u00e9riser la structure. Parall\u00e8lement, l&rsquo;utilisation des ondes guid\u00e9es ultrasonores fournit un outil efficace pour la caract\u00e9risation de celle-ci. Cependant, elles pr\u00e9sentent des caract\u00e9ristiques complexes qui rend l&rsquo;analyse de leurs interactions avec des d\u00e9fauts compliqu\u00e9e. Pour cela, il est souhaitable de favoriser la propagation d&rsquo;un mode unique dans la structure. Dans ce contexte, le but de cette th\u00e8se est de pr\u00e9senter un mod\u00e8le de matrice de micro-transducteurs pour la r\u00e9ception des ondes guid\u00e9es dans une structure cylindrique, en particulier, le mode de flexion F(1,1). Dans un premier temps, la r\u00e9alisation et la caract\u00e9risation des matrices de micro-transducteurs sont pr\u00e9sent\u00e9es. Les r\u00e9sultats ont montr\u00e9 la capacit\u00e9 de celles-ci \u00e0 op\u00e9rer dans la gamme fr\u00e9quentielle (60 kHz &#8211; 70 kHz) malgr\u00e9 sa haute fr\u00e9quence de r\u00e9sonance. Dans un deuxi\u00e8me temps, les mesures optiques et \u00e9lectriques effectu\u00e9es sur la matrice ont valid\u00e9 l&rsquo;utilisation de celle-ci pour des applications dans le CSI et le CND des structures cylindriques tout en favorisant la propagation du mode F(1,1).<\/p>\n<h5>Abstract:<\/h5>\n<p>Microtransducer arrays are undergoing a strong development in order to meet the requirements of integrated health control of structures. The latter allows to evaluate at any time the health of the structure while integrating a non-destructive testing system to it. Indeed, an array of micro-transducers allows the acquisition of several signals at the same time without performing a spatial scan to characterize the structure. At the same time, the use of guided ultrasonic waves provides an effective tool for its characterization. However, they present complex characteristics that make the analysis of their interactions with defects complicated. For this, it is desirable to favor the propagation of a single mode in the structure. In this context, the aim of this thesis is to present a model of micro-transducer matrix for the reception of guided waves in a cylindrical structure, in particular, the bending mode F(1,1). First, the realization and the characterization of the micro-transducer arrays are presented. The results showed the ability of these arrays to operate in the frequency range (60 kHz &#8211; 70 kHz) despite its high resonance frequency. In a second step, optical and electrical measurements performed on the array validated its use for applications in CSI and NDT of cylindrical structures while favoring the propagation of the F(1,1) mode.<\/p>\n<\/div><\/section>\n<\/div><\/div><\/div><!-- close content main div --><\/div><\/div><div id='layer_slider_2'  class='avia-layerslider main_color avia-shadow  avia-builder-el-6  el_after_av_textblock  el_before_av_heading  slider-not-first container_wrap sidebar_right'  style='height: 261px;'  ><div id=\"layerslider_58_4sn5p9t6yfqf\" data-ls-slug=\"homepageslider\" class=\"ls-wp-container fitvidsignore ls-selectable\" style=\"width:1140px;height:260px;margin:0 auto;margin-bottom: 0px;\"><div class=\"ls-slide\" data-ls=\"duration:6000;transition2d:5;\"><img loading=\"lazy\" decoding=\"async\" width=\"2600\" height=\"270\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1.jpg\" class=\"ls-bg\" alt=\"\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1.jpg 2600w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-300x31.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-768x80.jpg 768w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-1030x107.jpg 1030w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-1500x156.jpg 1500w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-705x73.jpg 705w\" sizes=\"auto, (max-width: 2600px) 100vw, 2600px\" \/><ls-layer style=\"font-size:14px;text-align:left;font-style:normal;text-decoration:none;text-transform:none;font-weight:700;letter-spacing:0px;border-style:solid;border-color:#000;background-position:0% 0%;background-repeat:no-repeat;width:180px;height:30px;left:0px;top:231px;line-height:32px;color:#ffffff;border-radius:6px 6px 6px 6px;padding-left:50px;background-color:rgba(0, 0, 0, 0.57);\" class=\"ls-l ls-ib-icon ls-text-layer\" data-ls=\"minfontsize:0;minmobilefontsize:0;\"><i class=\"fa fa-quote-right\" style=\"color:#ffffff;margin-right:0.8em;font-size:1em;transform:translateY( -0.125em );\"><\/i>ACTUALITES<\/ls-layer><\/div><\/div><\/div><div id='after_layer_slider_2'  class='main_color av_default_container_wrap container_wrap sidebar_right'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-small alpha units'><div class='post-entry post-entry-type-page post-entry-55288'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_heading-39acd15dae01b5fe579de3c0fdea6746\">\n#top .av-special-heading.av-av_heading-39acd15dae01b5fe579de3c0fdea6746{\nmargin:0 0 10px 0;\npadding-bottom:4px;\n}\nbody .av-special-heading.av-av_heading-39acd15dae01b5fe579de3c0fdea6746 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-av_heading-39acd15dae01b5fe579de3c0fdea6746 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-av_heading-39acd15dae01b5fe579de3c0fdea6746 av-special-heading-h2  avia-builder-el-7  el_after_av_layerslider  el_before_av_hr  avia-builder-el-first'><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >THESE : EL RAMMOUZ H. R\u00e9alisation de matrices de micro-transducteurs acoustiques : application au controle sant\u00e9 int\u00e9gr\u00e9 <\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-18u73nj-dad6a947580930e400fc42ba200e80f1\">\n#top .hr.av-18u73nj-dad6a947580930e400fc42ba200e80f1{\nmargin-top:5px;\nmargin-bottom:5px;\n}\n.hr.av-18u73nj-dad6a947580930e400fc42ba200e80f1 .hr-inner{\nwidth:100%;\n}\n<\/style>\n<div  class='hr av-18u73nj-dad6a947580930e400fc42ba200e80f1 hr-custom  avia-builder-el-8  el_after_av_heading  el_before_av_textblock  hr-left hr-icon-no'><span class='hr-inner inner-border-av-border-thin'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-jriy64i8-2f4600354c0449b610997916bbd9b6bc'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" >\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-13ewzjw-68e036126b913e5028f77311dc66b825\">\n.av_font_icon.av-13ewzjw-68e036126b913e5028f77311dc66b825{\ncolor:#bfbfbf;\nborder-color:#bfbfbf;\n}\n.av_font_icon.av-13ewzjw-68e036126b913e5028f77311dc66b825 .av-icon-char{\nfont-size:60px;\nline-height:60px;\n}\n<\/style>\n<span  class='av_font_icon av-13ewzjw-68e036126b913e5028f77311dc66b825 avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue8c9' data-av_iconfont='entypo-fontello' ><\/span><\/span>\n<p><strong><span class=\"auteurs\"><u>EL RAMMOUZ H.<\/u><\/span><\/strong><\/p>\n<p>Soutenance : 26 F\u00e9vrier 2021\u00a0 \u00e0 14h00<strong><br \/>\n<\/strong><span class=\"titre\">Universit\u00e9 Polytechnique Hauts-de-France, Universit\u00e9 Libanaise<\/span><\/p>\n<\/div><\/section>\n<section  class='av_textblock_section av-jtefqx33-628129dba2299b2ecd65ebfc92eac29d'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><\/div><\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":20,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[317],"tags":[],"class_list":["post-55288","post","type-post","status-publish","format-standard","hentry","category-these-2021"],"_links":{"self":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/55288","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/comments?post=55288"}],"version-history":[{"count":0,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/55288\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media?parent=55288"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/categories?post=55288"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/tags?post=55288"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}