J. Phys. IV France 124 (2005) 309-314
Multiples defects analysis using Cartesian-axisymmetric transformations models for NDT systemsA. Diche1, H. Mohellebi1, M. Féliachi2 and G. Berthiau2
1 Département d'Électrotechnique, Université de Tizi-Ouzou, BP. 17 RP, 15000, Algeria
2 IREENA(LRTI.-IUT), CRTT, BP. 406, 44602 Saint-Nazaire Cedex, France
The present work deals with the use of conformal mapping method in order to analysis multiples axisymmetric defects using established transformations models  for eddy current problems in non-destructive testing (NDT) systems. The interest of such a transformation is the generation of electromagnetic field for axisymmetric problem from only the field distribution known in simpler 2D(x-y) geometry. The transformation technique is applied to both geometry and electromagnetic field distribution and validated by comparing the predicted results to reference data . Then multiples defects are investigated.
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