Comparison of defect detection limits in Lorentz force eddy current testing and classical eddy current testing
| Autor: | Hannes Töpfer, Hartmut Brauer, Marek Ziolkowski, Jan Marc Otterbach, Reinhard Schmidt |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Physics lcsh:T business.industry Acoustics 020208 electrical & electronic engineering 02 engineering and technology lcsh:Technology 01 natural sciences Frequency spectrum law.invention symbols.namesake Measurement device law Eddy-current testing Nondestructive testing 0103 physical sciences 0202 electrical engineering electronic engineering information engineering symbols Eddy current Electrical and Electronic Engineering business Instrumentation Lorentz force Excitation |
| Zdroj: | Journal of Sensors and Sensor Systems, Vol 7, Pp 453-459 (2018) |
| ISSN: | 2194-878X |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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