Abstract
The feasibility of the eddy-current nondestructive testing using two orthogonal harmonic components of the driving magnetic field has been studied. The paper describes the practical implementation of the method in a flaw detector testing ferromagnetic rods and pipes and designed for detecting elongated flaws with small gradients of longitudinal parameters.
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Bulgakov, V.F., Goldstein, A.E., and Kalganov, S.A., Eddy-current Flaw Detector for Inspection of Cylindrical Workpieces, RF Inventor's Certificate no. 2090882,Byull. Izobr., 1997, no. 26.
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Goldstein, A.E., Kalganov, S.A. Eddy-current nondestructive testing of long cylindrical components using spatial magnetic field components of different frequencies. Russ J Nondestruct Test 36, 360–365 (2000). https://doi.org/10.1007/BF02759420
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DOI: https://doi.org/10.1007/BF02759420