Leak detection of the pipeline using acoustic emission technique and wavelet transform

被引：0

作者：

Hou, LQ ^{[1
]}

Tian, P ^{[1
]}

Yang, YQ ^{[1
]}

机构：

[1] N China Elect Power Univ, Dept Automat, Hebei 071003, Peoples R China

来源：

ISTM/2005: 6th International Symposium on Test and Measurement, Vols 1-9, Conference Proceedings | 2005年

关键词：

leak detection; acoustic emission; wavelet transform; cross correlation;

D O I：

暂无

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The principle of linear source location and the theory of wavelet transform are introduced. A leak detection technique using the wavelet transform and cross correlation is brought out. First, the wavelets transform (WT) is used for the acoustic emission (AE) signal denoising. After WT denoising, the cross correlation technique is adopted to calculate the time delay between the two AE sensors. Then a compare between this method and traditional cross correlation is conducted Simulation result demonstrates the effectiveness of this methods, the delay time determined based on this method agree well with the setting value of simulated signals.

引用

页码：7226 / 7229

页数：4

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