传感技术学报2016，Vol.29Issue(6)：821-825,5.DOI:10.3969/j.issn.1004-1699.2016.06.006
脉冲涡流厚度检测仿真与实验研究
Simulation and Experimental Investigation of Thickness Measurement Using Pulsed Eddy Current Technique
摘要
Abstract
A 2D finite-element model is established for thickness measurement using pulsed eddy current(PEC) technique due to axisymmetric of transient magnetic field. The PEC differential signals were calculated using the de⁃veloped theoretical model for sheets with different conductivity and thickness. Through analysis on PEC signals due to samples,the peak amplitudes are considered as the desirable signal features for thickness evaluation. The simula⁃tion results show that the peak value of the PEC differential signal increases when the sheet under test becomes thicker. The metal sheet with higher conductivity also makes the peak value of PEC differential signal larger as well. The observations from the experimental measurements agree well with those from simulation data,which validates the developed model and the simulated results.关键词
无损检测/厚度检测/脉冲涡流/有限元仿真/峰值Key words
nondestructive testing/thickness measurement/pulsed eddy current/finite element simulation/peak value分类
矿业与冶金引用本文复制引用
杨盼盼,曹丙花,范孟豹,谢伟..脉冲涡流厚度检测仿真与实验研究[J].传感技术学报,2016,29(6):821-825,5.基金项目
国家自然科学基金项目（5107172）；博士学科点专项科研基金项目（20120095120027）；江苏省大人才高峰项目（ZBZZ-041）；轻工过程先进控制教育部重点实验室开放课题项目 （）
