中国机械工程2012，Vol.23Issue(15)：1771-1773,1778,4.
脉冲涡流金属厚度检测信号及其特征提取
Feature Extraction of Pulsed Eddy Current Signals on Metal Thickness Measurement
摘要
Abstract
This paper introduced the current research states of PEC thickness testing. The main purpose of this paper is to improve the properties of the PEC sensor, the sensitivity and linearity of current features for metal thickness measurement were evaluated in both of time and frequency do- main using PEC nondestructive testing (NDT). Experimental study was conducted with aluminum slabs in different thicknesses. Based on the comparative study of the feature extraction techniques,the most suitable feature was discussed.关键词
脉冲涡流/厚度测量/特征提取/功率谱Key words
pulsed eddy current(PEC)/thickness measurement/feature extraction/power spec-trum分类
矿业与冶金引用本文复制引用
周德强,李勇,张秋菊,尤丽华..脉冲涡流金属厚度检测信号及其特征提取[J].中国机械工程,2012,23(15):1771-1773,1778,4.基金项目
国家自然科学基金资助项目 （）
