{"id":170179,"date":"2017-06-09T06:21:04","date_gmt":"2017-06-09T06:21:04","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/systemes-filaires-detecter-les-defauts-avant-la-rupture\/"},"modified":"2017-06-09T06:21:04","modified_gmt":"2017-06-09T06:21:04","slug":"systemes-filaires-detecter-les-defauts-avant-la-rupture","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/systemes-filaires-detecter-les-defauts-avant-la-rupture\/","title":{"rendered":"Syst\u00e8mes filaires : d\u00e9tecter les d\u00e9fauts avant la rupture"},"content":{"rendered":"<p>Le d\u00e9monstrateur d\u00e9velopp\u00e9 par le List est fond\u00e9 sur l&rsquo;utilisation d&rsquo;une carte \u00e9lectronique capable d&rsquo;injecter un signal OMTDR* dans le r\u00e9seau de c\u00e2bles. Lorsque ce signal rencontre un d\u00e9faut, une partie de son \u00e9nergie est renvoy\u00e9e vers le point d&rsquo;injection tandis que l&rsquo;autre partie continue \u00e0 se propager. Apr\u00e8s construction du r\u00e9flectogramme, la carte utilise un algorithme innovant, bas\u00e9 sur plusieurs brevets, qui&nbsp;r\u00e9alise la fusion des r\u00e9sultats provenant de plusieurs m\u00e9thodes de post-traitement pour fournir un diagnostic robuste et multicrit\u00e8re. Mieux : une carte (ma\u00eetre) communique avec d&rsquo;autres (esclaves) qui lui envoient leurs propres r\u00e9flectogrammes pour en tirer une analyse combin\u00e9e plus pr\u00e9cise.<\/p>\n<p>Sur paire torsad\u00e9e et quadrax, le d\u00e9monstrateur d\u00e9tecte et localise des d\u00e9fauts d&rsquo;endommagement de l&rsquo;isolant et du blindage plus fins que les d\u00e9tecteurs actuels : par exemple, un endommagement de blindage de longueur 5 mm ou un rayon de courbure inf\u00e9rieur ou \u00e9gal \u00e0 10 fois le diam\u00e8tre du c\u00e2ble sous test \u2013 une premi\u00e8re ! De format compact, il peut \u00eatre int\u00e9gr\u00e9 dans des connecteurs pour r\u00e9aliser un autodiagnostic des syst\u00e8mes filaires complexes. Ce d\u00e9monstrateur a \u00e9t\u00e9 pr\u00e9sent\u00e9 lors d&rsquo;une conf\u00e9rence, et sera bient\u00f4t industrialis\u00e9 par la soci\u00e9t\u00e9 Nicomatic.<\/p>\n<p>*<i>OMTDR : Orthogonal Multi-tone Time Domain Reflectometry<\/i><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dans les avions, les anomalies naissantes repr\u00e9sentent 45 % des d\u00e9fauts d&rsquo;endommagement sur les c\u00e2bles et syst\u00e8mes filaires. Or, les techniques de r\u00e9flectom\u00e9trie classiques sont surtout efficaces pour les d\u00e9fauts francs. Avoir une m\u00e9thode de d\u00e9tection pr\u00e9coce des d\u00e9t\u00e9riorations permettrait de mieux anticiper les op\u00e9rations de maintenance.<\/p>\n","protected":false},"author":9,"featured_media":170180,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[],"domains":[47],"ppma_author":[1141],"class_list":["post-170179","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Syst\u00e8mes filaires : d\u00e9tecter les d\u00e9fauts avant la rupture ...<\/title>\n<meta name=\"description\" content=\"Dans les avions, les anomalies naissantes repr\u00e9sentent 45 % des d\u00e9fauts d&#039;endommagement sur les c\u00e2bles et syst\u00e8mes filaires. Or, les techniques de...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/170179\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Syst\u00e8mes filaires : d\u00e9tecter les d\u00e9fauts avant la rupture\" \/>\n<meta property=\"og:description\" content=\"Dans les avions, les anomalies naissantes repr\u00e9sentent 45 % des d\u00e9fauts d&#039;endommagement sur les c\u00e2bles et syst\u00e8mes filaires. Or, les techniques de r\u00e9flectom\u00e9trie classiques sont surtout efficaces pour les d\u00e9fauts francs. 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