Inner defect depth detection using a multifrequency alternating current potential drop technique

The alternating current potential drop technique is usually used to monitor surface defects in metal structures by taking advantage of the skin effect. However, defects often occur in the inner walls of oil or gas pipes as a result of corrosion or erosion. In this work, a multifrequency exciting cur...

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Bibliographic Details
Main Authors: Fangji Gan, Yuting Li, Zhengjun Wan, Junbi Liao
Format: Article
Language:English
Published: AIP Publishing LLC 2016-10-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4954294