Difference in the detection limits of flaws in the depths of multi-layered and continuous aluminum plates using low-frequency eddy current testing

2008 ◽  
Vol 41 (2) ◽  
pp. 108-111 ◽  
Author(s):  
Hironobu Yamada ◽  
Teruki Hasegawa ◽  
Yudai Ishihara ◽  
Toshihiko Kiwa ◽  
Keiji Tsukada
Keyword(s):  
Eddy Current ◽  
Low Frequency ◽  
Detection Limits ◽  
Eddy Current Testing ◽  
Current Testing ◽  
Aluminum Plates

scholarly journals Evaluation of Sensitivity of Remote Field Eddy Current Testing and Low-Frequency Eddy Current Testing for Inspecting Grooves of Metal Plate

2013 ◽  
Vol 54 (1) ◽  
pp. 90-95 ◽  
Author(s):  
Jing Wang ◽  
Noritaka Yusa ◽  
Hongliang Pan ◽  
Toshiyuki Takagi ◽  
Hidetoshi Hashizume
Keyword(s):  
Eddy Current ◽  
Low Frequency ◽  
Metal Plate ◽  
Eddy Current Testing ◽  
Current Testing

scholarly journals Comparison of defect detection limits in Lorentz force eddy current testing and classical eddy current testing

2018 ◽  
Vol 7 (2) ◽  
pp. 453-459 ◽  
Author(s):  
Jan Marc Otterbach ◽  
Reinhard Schmidt ◽  
Hartmut Brauer ◽  
Marek Ziolkowski ◽  
Hannes Töpfer
Keyword(s):  
Lorentz Force ◽  
Defect Detection ◽  
Eddy Current ◽  
Eddy Currents ◽  
Excitation Frequency ◽  
Detection Limits ◽  
Eddy Current Testing ◽  
Current Testing ◽  
Testing Method ◽  
Measurement Results

Abstract. 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.

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