Localisation de l'écho de défaut dans un signal ultrasonore
Identifieur interne : 000403 ( France/Analysis ); précédent : 000402; suivant : 000404Localisation de l'écho de défaut dans un signal ultrasonore
Auteurs : Yaya Sidibe [France] ; Fabrice Druaux [France] ; Dimitri Lefebvre [France] ; Fernand Leon [France] ; Gerard Maze [France]Source :
Descripteurs français
- mix :
Abstract
Le contrôle par contact est le plus répandu dans l'inspection des systèmes mais son application exige un accès facile au système. La nécessité de développer une technique de contrôle sans contact pour des systèmes difficiles d'accès est donc justifiée. La contribution proposée s'inscrit dans cette démarche pour le diagnostic de défaut des systèmes immergés (par exemple des pales d'hydroliennes). Les mesures sont réalisées par échographie ultrasonore et la méthode développée utilise les outils de traitement du signal ainsi qu'un modèle de propagation des ondes de Lamb dans la structure. L'algorithme proposé permet de détecter et localiser à distance des défauts de surface dans des structures de géométrie simple.
Url:
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Hal, to step Corpus: 000649
- to stream Hal, to step Curation: 000649
- to stream Hal, to step Checkpoint: 000239
- to stream Main, to step Merge: 000431
- to stream Main, to step Curation: 000428
- to stream Main, to step Exploration: 000428
- to stream France, to step Extraction: 000403
Links to Exploration step
Hal:hal-00823165Le document en format XML
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status="VALID"><idno type="ISNI">0000000122597504</idno><idno type="IdRef">02636817X</idno><orgName>Centre National de la Recherche Scientifique</orgName><orgName type="acronym">CNRS</orgName><date type="start">1939-10-19</date><desc><address><country key="FR"></country></address><ref type="url">http://www.cnrs.fr/</ref></desc></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city">Le Havre</settlement><region type="region" nuts="2">Région Normandie</region><region type="old region" nuts="2">Haute-Normandie</region></placeName><orgName type="university">Université du Havre</orgName></affiliation></author></analytic></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="mix" xml:lang="fr"><term>acoustique ultrasonore</term><term>détection de défauts</term><term>localisation de défauts</term><term>onde de Lamb</term><term>onde de Lamb.</term><term>traitement du signal</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="fr">Le contrôle par contact est le plus répandu dans l'inspection des systèmes mais son application exige un accès facile au système. La nécessité de développer une technique de contrôle sans contact pour des systèmes difficiles d'accès est donc justifiée. La contribution proposée s'inscrit dans cette démarche pour le diagnostic de défaut des systèmes immergés (par exemple des pales d'hydroliennes). Les mesures sont réalisées par échographie ultrasonore et la méthode développée utilise les outils de traitement du signal ainsi qu'un modèle de propagation des ondes de Lamb dans la structure. L'algorithme proposé permet de détecter et localiser à distance des défauts de surface dans des structures de géométrie simple.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Haute-Normandie</li><li>Région Normandie</li></region><settlement><li>Le Havre</li></settlement><orgName><li>Université du Havre</li></orgName></list><tree><country name="France"><region name="Région Normandie"><name sortKey="Sidibe, Yaya" sort="Sidibe, Yaya" uniqKey="Sidibe Y" first="Yaya" last="Sidibe">Yaya Sidibe</name></region><name sortKey="Druaux, Fabrice" sort="Druaux, Fabrice" uniqKey="Druaux F" first="Fabrice" last="Druaux">Fabrice Druaux</name><name sortKey="Lefebvre, Dimitri" sort="Lefebvre, Dimitri" uniqKey="Lefebvre D" first="Dimitri" last="Lefebvre">Dimitri Lefebvre</name><name sortKey="Leon, Fernand" sort="Leon, Fernand" uniqKey="Leon F" first="Fernand" last="Leon">Fernand Leon</name><name sortKey="Maze, Gerard" sort="Maze, Gerard" uniqKey="Maze G" first="Gerard" last="Maze">Gerard Maze</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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