Scratch Detection by Eddy-Current Testing with a High Lift-Off Height
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概要
- 論文の詳細を見る
This paper describes an eddy-current testing (ECT) probe with a new structure, consisting of a perpendicular exciting coil and a spin-valve-type giant magneto-resistance sensor for scratch detection with a high lift-off height. We derived an analytical solution of eddy-current distribution to compare with a perpendicular exciting coil and a traditional parallel exciting coil. Experimental inspections with lift-off heights of 5 and 7mm were carried out to detect scratches of 0.1-0.5mm depth in a stainless steel plate. The 2-D experimental image results show that the proposed ECT probe has good detection capabilities.
- 社団法人日本磁気学会の論文
- 2006-07-01
著者
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Iwahara M.
Kanazawa University
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Yamada S.
Kanazawa University
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Iwahara M.
Institute Of Nature And Environmental Technology. Kanazawa Univ.
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Iwahara M
Institute Of Nature And Environmental Technology. Kanazawa Univ.
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Hagino T.
Kanazawa University
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Tian H.
Kanazawa University
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Watanabe H.
Daido Steel Co. Ltd.
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Yamada S.
Division Of Biological Measurement And Applications Kanazawa University
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