Eddy Current Distribution Using Parameters Normalized by Standard Penetration Depth

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1999
Authors
Hoshikawa, Hiroshi
Koyama, Kiyoshi
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Review of Progress in Quantitative Nondestructive Evaluation
Center for Nondestructive Evaluation

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

Conventional eddy current testing has traditionally used circular pancake coils. The recent needs of high sensitivity testing have prompted the researchers to develop various kinds of test probes. The flaw detection characteristics in eddy current testing depend theoretically on the eddy current distribution induced in the test material by the probe. Thus it is quite important to know the eddy current distribution in order to detect flaws in the material on a given test condition. However, the eddy current distribution is influenced complicatedly by many factors such as the test frequency, the electromagnetic characteristics and the configurations of the test material, and the exciting coil configurations. As a result, it is not easy to find out the appropriate probe design for a given test material.

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Fri Jan 01 00:00:00 UTC 1999