关键词: 声发射, 小波理论, 降噪, 高档车削加工中心

Abstract:

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 results 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.

Key words: acoustic emission;wavelet theory;noise reduction;high-grade turning machining center