| 金属腐蚀染噪声发射信号的小波分析 |
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| 引用本文： | 戴光,李宝玉,李伟.金属腐蚀染噪声发射信号的小波分析[J].化工机械,2004,31(5):285-288. |
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| 作者姓名： | 戴光 李宝玉 李伟 |
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| 作者单位： | 大庆石油学院;大庆石油学院;大庆石油学院 |
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| 摘 要： | 利用小波变换的基本原理和方法，对Q235碳素结构钢的均匀点腐蚀染噪声发射信号进行分析。通过计算小波分解后各级频带能量占整个信号能量的百分比，确定出主能量频带后，去除非主能量频带的噪声信号，提取金属腐蚀声发射信号的典型特征。
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| 关 键 词： | 小波分析 金属腐蚀 声发射技术 信号处理 |
| 文章编号： | 0254-6094(2004)05-0285-04 |
Wavelet Analysis of the Acoustic Emission Signals of Metal Corrosion Contaminated With Noise |
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| DAI Guang,LI Baoyu,LI Wei.Wavelet Analysis of the Acoustic Emission Signals of Metal Corrosion Contaminated With Noise[J].Chemical Engineering & Machinery,2004,31(5):285-288. |
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| Authors: | DAI Guang LI Baoyu LI Wei |
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| Abstract: | An analysis was made of the acoustic emission signals of the uniform pitting of Q235 carbon steel contaminated with noise using the basic principle and method of wavelet variation. The typical feature of the acoustic emission signals of metal corrosion was extracted with calculating the ratio of every level energy to total signal energy after the wavelet was decomposed, the major energy was determined and the background noise was ridded. |
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| Keywords: | Wavelet Analysis Metal Corrosion Acoustic Emission Technique Signal Processing |
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