A Model of Pulsed Eddy Current Crack Detection
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Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.
This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.
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Abstract
As its name implies, the pulsed eddy current (PEC) method makes use of a short burst of excitation current, rather than continuous sinusoidal (CW) current as is the case with conventional eddy current probes. Reflected fields, including flaw signal fields, are therefore time-dependent in the pulsed case, and are characterized by peak signal amplitude, pulse arrival time and signal decay parameters, rather than amplitude and phase as in the CW case.