A perturbation approach for the modeling of eddy current nondestructive testing problems with differential probes

V Sabariego, Ruth; Dular, Patrick

doi:10.1109/TMAG.2007.892398

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Article (Scientific journals)

A perturbation approach for the modeling of eddy current nondestructive testing problems with differential probes

V Sabariego, Ruth; Dular, Patrick

2007 • In IEEE Transactions on Magnetics, 43 (4 Sp. Iss. SI), p. 1289-1292

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https://hdl.handle.net/2268/22801

DOI
10.1109/TMAG.2007.892398

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Keywords :

eddy currents; finite element method; nondestructive testing; perturbation method

Abstract :

[en] A perturbation technique applied to the finite element modeling of eddy current nondestructive testing (ECNDT) problems is developed for taking into account differential probes. It concerns a h-conform formulation. The source term of the formulation is directly determined by the projection of the unperturbed field in a relatively small region around the defect. The voltage change due to the presence of the flaw is calculated by performing an integral over the defect and a layer of elements in the exterior domain that touch its boundary. The considered test case involves a shielded differential probe scanning the surface of a metal specimen for the detection of flaws.

Disciplines :

Electrical & electronics engineering
Physics

Author, co-author :

V Sabariego, Ruth ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)

Dular, Patrick ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)

Language :

English

Title :

A perturbation approach for the modeling of eddy current nondestructive testing problems with differential probes

Publication date :

April 2007

Journal title :

IEEE Transactions on Magnetics

ISSN :

0018-9464

eISSN :

1941-0069

Publisher :

Ieee-Inst Electrical Electronics Engineers Inc, Piscataway, United States - New Jersey

Volume :

Issue :

4 Sp. Iss. SI

Pages :

1289-1292

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=4137800

Available on ORBi :

since 18 September 2009

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Bibliography

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