Pulsed Eddy Currents: A New Trend in Non-destructive Evaluation of Conductive Materials
نویسندگان
چکیده
Abstrac t Pulsed eddy current (PEC) is a new technique of non-destructive material evaluation (NDE). In comparison with other eddy current techniques, PEC uses pulsed excitation that is characterized by wide frequency content and thus the response carries more complex information about a tested object. PEC method is used in many NDE common applications such as inspection of defects, measurement of conductivity and estimation of material thickness. This article deals with the conventional and the pulsed eddy testing method as a new trend in electromagnetic nondestructive evaluation of conductive materials. Numerical simulations as well as selected experimental results are carried out to study correlations between the driving and the response signals regarding the defect classification. The gained numerical and experimental results are presented and discussed in the paper.
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