Using the Skin Effect to Estimate Cracks Depths in Mettalic Structures
Ribeiro, A. L.
Using the Skin Effect to Estimate Cracks Depths in Mettalic Structures, Proc IEEE Instrumentation and Measurement Technology Conf., Singapore, Singapore, Vol. CD, pp. 1361 - 1366, May, 2009.
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This paper is concerned with the characterization of depth profiles defects in metallic structures. Experimental work using giant magnetoresistors (GMR) scanning automatically a metallic plate with eddy currents induced by an excitation coil has been carried out and is described. The results are analyzed in comparison with the simulation results obtained with a commercial finite element model for some test cases.