摘要
目前,声发射检测法已被广泛应用于众多工程领域,但在声发射信号采集过程中产生的噪声干扰问题会使检测结果产生重大偏差,因此对采集到的声发射信号进行降噪处理是必要的。文中论述了应用小波理论,对高档车削加工中心在进行车削加工时产生的声发射信号进行降噪处理的方法,从而使得检测结果更加可信,同时这一方法对其他声发射检测过程也具有一定的借鉴意义。
At present, the acoustic emission method has been widely used in many engineering fields, but noise interference in the acoustic emission signal acquisition process causes a significant deviation in the testing re- suits thus the necessity of noise reduction processing for the collected acoustic emission signals. This paper discusses the application of the wavelet theory, the high-grade turning processing center in turning processing resulting from the acoustic emission signal de-noising treatment method, as a result of which the measuring result is more credible, and at the same time this method in other acoustic emission detection process also has a certain reference significance.
出处
《电子科技》
2013年第4期119-123,共5页
Electronic Science and Technology
关键词
声发射
小波理论
降噪
高档车削加工中心
acoustic emission
wavelet theory
noise reduction
high-grade turning machining center
