KANG Zhi-bin1, ZHU Rong-xin1, YANG Bin-feng1, et al. Simulation research on quantitative detection on cracks based on rectangular PEC sensor[J]. 2012, 31(6): 38-41.
KANG Zhi-bin1, ZHU Rong-xin1, YANG Bin-feng1, et al. Simulation research on quantitative detection on cracks based on rectangular PEC sensor[J]. 2012, 31(6): 38-41. DOI: 10.13873/j.1000-97872012.06.033.
Due to the structure characteristic of traditional pulsed eddy current(PEC)sensor
there is self-excitation disturbance in practical detection which causes low sensitivity.A rectangular sensor is proposed to improve the detectability.On the basis of analysis of detecting principle of this sensor
detecting model of rectangular PEC sensor is set up using ANSYS software.The distribution of eddy current and the disturbance of 3D magnitic field caused by crack is analyzed by simulation.The result shows that the rectangular sensor can induce uniform eddy current on the aluminium plate
and a crack’s size can be quantified dectected by analyzing the 3 signals.
Feature extraction and selection for defect classification of pulsed eddy current NDT [J] . Tianlu Chen,Gui Yun Tian,Ali Sophian,Pei Wen Que. NDT and E International . 2008 (6)