The Research on Leak Detection Technology of Natural Gas Pipeline Based on EMD

被引：5
|
作者：
Li, Chuanjiang [1 ]
Zhang, Jiapan [1 ]
Zhang, Ziqiang [1 ]
Hu, Juli [1 ]
Li, Yi [1 ]
机构：
[1] Shanghai Normal Univ, Shanghai 201418, Peoples R China
来源：
CURRENT DEVELOPMENT OF MECHANICAL ENGINEERING AND ENERGY, PTS 1 AND 2 | 2014年 / 494-495卷
关键词：
Pipeline leakage detection; Acoustic emission; EMD;
D O I：
10.4028/www.scientific.net/AMM.494-495.793
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The acoustic emission signal of pipeline leakage is characterized by nonlinear and non-stationary. It is not feasible to extract the leakage feature signal in traditional signal processing methods. The leak locations can be detected by employing the improved empirical mode decomposition (EMD) to decompose the acoustic emission signal into several intrinsic mode functions (IMF), choosing IMFs containing leakage characteristics to be reconstructed, and doing correlation analysis. Experimental results show that the positioning accuracy of leakage detection is improved obviously.
引用
收藏
页码：793 / 796
页数：4
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