摘要
对声发射信号进行分析与处理是目前获取声发射源信息的唯一有效途径,也是声发射技术发展的难点和瓶颈。针对声发射信号的特点,对小波变换用于声发射信号的特征分析问题进行了研究,总结出了适用于声发射信号的小波变换信号特征提取方法,并对未来小波变换在声发射领域的应用与研究方向进行了探讨。
Acoustic emission signal processing is the only effective method to acquire the acoustic emission source information by now and is also the bottleneck that affects its positive development.According to the characteristic of acoustic emission signal,a wavelet-based method of signal feature analysis was presented.The developing tendency of the application of wavelet transform in acoustic emission was discussed finally.
出处
《无损检测》
2012年第11期48-51,65,共5页
Nondestructive Testing
基金
国家质检总局科技计划资助项目(2009QK149)
关键词
声发射
小波变换
特征提取
信号处理
Acoustic emission(AE)
Wavelet transform
Feature extraction
Signal processing
作者简介
庆光蔚(1985-),女,博士生,主要研究方向为电梯、起重机械检验检测技术。