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Characterization of small cracks in eddy current testing*

Published online by Cambridge University Press:  12 June 2008

Y. Le Bihan ,
J. Pávó  and
C. Marchand
Y. Le Bihan*
Affiliation:
Laboratoire de Génie Electrique de Paris (LGEP), CNRS UMR 8507, Supelec, Université Pierre et Marie Curie Paris 6 Université Paris Sud-P11, 91192 Gif-sur-Yvette, France
J. Pávó
Affiliation:
Budapest University of Technology and Economics (BUTE), 1521 Budapest, Hungary
C. Marchand
Affiliation:
Laboratoire de Génie Electrique de Paris (LGEP), CNRS UMR 8507, Supelec, Université Pierre et Marie Curie Paris 6 Université Paris Sud-P11, 91192 Gif-sur-Yvette, France
*
yann.le-bihan@lgep.supelec.fr
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Abstract

A study on the characterization of small cracks by using eddy current testing (ECT) signal is presented. The significant parameters of the ECT data are selected using principal component analysis according to two approaches. The ECT signal inversion is then achieved using a parametric model trained with synthetic data obtained with a fast numerical simulation tool. The characterization procedure is then tested using experimental data. Results show that information can be obtained concerning the area of the cracks.

Keywords

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Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 43 , Issue 2: Reliability in Electromagnetic Systems (IET) , August 2008 , pp. 231 - 237
Copyright
© EDP Sciences, 2008

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Footnotes

*

This article has been submitted as part of “IET –Colloquium on Reliability in Electromagnetic Systems”, 24 and 25 May 2007, Paris

References

Singh, R., Cargill, J.S., Mat. Eval. 60, 845 (2002)
Le Bihan, Y., Pávó, J., Bensetti, M., Marchand, C., IEEE Trans. Magn. 42, 1411 (2006) CrossRef
Le Bihan, Y., Pávó, J., Marchand, C., NDT&E Int. 39, 476 (2006) CrossRef
Morabito, C.F., Mat. Eval. 58, 85 (2000)
M. Wall, F.A. Wedgwood, S. Burch, Modelling of NDT Reliability (POD) and applying corrections for human factors, 7th European Conference on Non-destructive Testing, Copenhagen, 26–29 May 1998