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dc.contributor.authorZhiwei Zeng
dc.contributor.authorPengcheng Ding
dc.contributor.authorJiayi Li
dc.contributor.authorShaoni Jiao
dc.contributor.authorJunming Lin
dc.contributor.authorYonghong Dai
dc.date.accessioned2020-10-10T03:07:34Z
dc.date.available2020-10-10T03:07:34Z
dc.date.issued2019-12-09
dc.identifier.citationChinese Journal of Mechanical Engineering,2019,(6)
dc.identifier.other10.1186/s10033-019-0419-6
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/176995
dc.description.abstractAbstract(#br)In eddy current testing, the law of attenuation of eddy current (EC) is of great concern. In conductive half space under the excitation of uniform magnetic field, the EC density decreases exponentially in the depth direction. However, in conductor with finite thickness tested by coil, the distribution of EC in the depth direction is more complicated. This paper studies the characteristics of EC attenuation in metallic plate of finite thickness. Simulation results show that there is an EC reflection at the bottom of plate, which changes the law of EC attenuation. A new concept, namely the equivalent attenuation coefficient, is proposed to quantify the speed of EC attenuation. The characteristics of EC attenuation are utilized to explain the nonmonotonic relation between coil...
dc.language.isozh_CN
dc.subjectEddy current testing
dc.subjectAttenuation of eddy current
dc.subjectThickness measurement
dc.subjectMetallic plate
dc.titleCharacteristics of Eddy Current Attenuation and Thickness Measurement of Metallic Plate
dc.typeArticle


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