Comparison of defect detection limits in Lorentz force eddy current testing and classical eddy current testing
<p>Lorentz force eddy current testing (LET) is a motion-induced eddy current testing method in the framework of nondestructive testing. In this study, we address the question of how this method is classified in comparison with a commercial eddy current testing (ECT) measurement device ELOT...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2018-07-01
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| Series: | Journal of Sensors and Sensor Systems |
| Online Access: | https://www.j-sens-sens-syst.net/7/453/2018/jsss-7-453-2018.pdf |
| Summary: | <p>Lorentz force eddy current testing (LET) is a
motion-induced eddy current testing method in the framework of nondestructive
testing. In this study, we address the question of how this method is
classified in comparison with a commercial eddy current testing (ECT)
measurement device ELOTEST N300 in combination with the probe PKA48 from Rohmann GmbH. Therefore,
measurements using both methods are performed and evaluated. Based on the
measurement results, the corresponding defect detection limits, i.e., up to
which depth the defect can be detected, are determined and discussed. For
that reason, the excitation frequency spectrum of the induced eddy currents
in the case of LET is considered.</p> |
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| ISSN: | 2194-8771 2194-878X |