摘要
首先对声发射技术及其在变压器局部放电应用中的检测原理进行了阐述,随后分别从声发射传感器和声发射信号处理上对声发射检测仪的发展作了总结,在查阅大量文献的基础上,总结了声发射信号的两种分析方法(参数分析方法和波形分析方法)的具体应用和发展情况.其中在波形分析方法中说明了频谱分析、模态声发射分析、小波分析和人工神经网络分析的最新成果和存在的问题及解决途径.最后探讨了声发射技术及其在局部放电应用中存在的问题和发展方向.
The application of AE （Acoustic emission）technique in partial discharge was introduced, the testing principle of AE was expounded. Then we summarized the development of AE apparatus from the point of signal processing and AE sensor. On a basis of lots of literature, we summarized the application and the development of the two kind of signal analysis, which were the methods base on parameter and wave analysis, we also explained the latest achievements, existent problems and the solution of the wave analysis method, which were frequency analyzing method, modal acoustic emission method, wavelt analysis and artificial neural network.At last, The problem in AE and its application in partial discharge were discussed,the coming development was included.
出处
《甘肃高师学报》
2007年第5期25-28,共4页
Journal of Gansu Normal Colleges
基金
国家自然科学基金(10574509)
甘肃省自然科学基金(3ZSO42-B25-033)
兰州交通大学"青蓝"人才工程计划
光电技术与智能控制教育部重点实验室开放基金(K040101)
关键词
声发射
信号处理
小波分析
神经网络
Acoustic emission
Signal analysis
Wavelet analysis
Neural network
