Surface crack reconstruction from eddy current images using a direct semi-analytic model

Eric Vourc'H 1 Thierry Bore 1 Caifang Cai 2 Romain Soulat 3
1 SATIE - Systèmes et Applications des Technologies de l'Information et de l'Energie
2 L2S - Laboratoire des signaux et systèmes
3 LSV - Laboratoire Spécification et Vérification [Cachan]
Abstract : A method relying on a direct semi-analytic model is proposed for reconstructing cracks from eddy current images. We consider systems featuring a uniform excitation flow which can be modelled by means of fictitious current sources distributed in the crack volume. Thanks to the relative simplicity of the model a reconstruction method based the comparison of EC images is considered. The sensitivity of different images comparison criteria is studied for 2D surface cracks, leading to a reconstruction method based on a genetic algorithm. Numerical experiments are carried out to examine the performances of the algorithm in terms of convergence and accuracy.
Keywords : genetic algorithm eddy current crack retrieval nondestructive testing imaging
Type de document :
Article dans une revue
Journal of Physics: Conference Series, IOP Publishing, 2015, 657, 012015 (6pp). 〈10.1088/1742-6596/657/1/012015〉
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https://hal-centralesupelec.archives-ouvertes.fr/hal-01263386
Contributeur : Dominique Lesselier <>
Soumis le : mercredi 27 janvier 2016 - 16:53:44
Dernière modification le : jeudi 24 mai 2018 - 15:58:06

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SATIE | L2S | SUP_LSS | CENTRALESUPELEC | SUP_SIGNAUX | ENS-CACHAN | UNIV-CERGY | IFSTTAR | TDS-MACS | UNIV-PARIS-SACLAY | SATIE-SIAME | SATIE-II

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Eric Vourc'H, Thierry Bore, Caifang Cai, Romain Soulat. Surface crack reconstruction from eddy current images using a direct semi-analytic model. Journal of Physics: Conference Series, IOP Publishing, 2015, 657, 012015 (6pp). 〈10.1088/1742-6596/657/1/012015〉. 〈hal-01263386〉

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