紀要論文 渦電流探査技術に関する考察

日向, 隆大

582017-03-31 , 法政大学大学院理工学研究科
ISSN:21879923
内容記述
Previously, we have succeeded in exploiting a new high sensibility eddy current testing (ECT) sensor called the infinite (∞) coil. This paper proposes the other new ECT sensor to realize a further higher sensibility sensor than those of our previous one. The new sensor utilizes the magnetic fields in the parallel directions to a tested target surface, and this makes it possible to construct a shape whose sensing coil could be entirely surrounded by the exciting coil. Surrounding the sensing coil entirely by the exciting coil makes it possible to work the exciting coil as if a shielding coil to the external electromagnetic noise. Thus, good signal to noise ratio is expected and has been confirmed by the numerical simulations as well as practical experiments.Key Words : Eddy current testing, Non-destructive testing, ∞ coil
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http://repo.lib.hosei.ac.jp/bitstream/10114/13546/1/15R3133.pdf

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