小波分析在钢板裂纹电涡流检测中的应用

Applications of Wavelet Analysis in Plate Surface Crack Detection with Eddy Current Testing Technology

在钢板的表面裂纹的在线检测中,经常利用电涡流检测技术,但是获得信号比较微弱,而且干扰严重;文章将小波变换引入到信号的处理中,对检测信号进行除噪,并加强其特征值,进而得到较好的检测信号。

Eddy current testing technology is often used in the on-line plate surface crack detection but the output signal is relatively weak and terribly interfered. In this paper, the method of wavelet transform is applied to analyze testing signals. The noise of the signal can be removed and the eigenValue can be strengthened.