基于混沌理论的天然气管道泄漏检测实验

TE832; 提出了一种基于混沌理论的天然气管道的泄漏检测方法.该方法利用混沌理论对噪声具有抑制作用,对同频率的微弱周期信号极其敏感的特点,首先将采集到的声发射信号的频率压缩至1 ～ 10 rad/s,然后将信号输入Duffing振子阵列系统中,以振子阵列系统的状态转换实现强噪声中泄漏信号的检测.仿真实验证明,该系统在强噪声背景下具有很强的抗干扰能力,能从噪声中检测泄漏信号并能提高泄漏检测的准确率....

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Published in	实验室研究与探索 Vol. 33; no. 7; pp. 35 - 38
Main Author	胡菊丽张自强高允领
Format	Journal Article
Language	Chinese
Published	上海师范大学信息与机电工程学院,上海,201418 2014
Subjects	声发射天然气管网泄漏检测混沌理论 choas theory leak detection 泄漏检测混沌理论声发射 nature gas pipeline network acoustic emission 天然气管网
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ISSN	1006-7167

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Abstract	TE832; 提出了一种基于混沌理论的天然气管道的泄漏检测方法.该方法利用混沌理论对噪声具有抑制作用,对同频率的微弱周期信号极其敏感的特点,首先将采集到的声发射信号的频率压缩至1 ～ 10 rad/s,然后将信号输入Duffing振子阵列系统中,以振子阵列系统的状态转换实现强噪声中泄漏信号的检测.仿真实验证明,该系统在强噪声背景下具有很强的抗干扰能力,能从噪声中检测泄漏信号并能提高泄漏检测的准确率.
AbstractList	TE832; 提出了一种基于混沌理论的天然气管道的泄漏检测方法.该方法利用混沌理论对噪声具有抑制作用,对同频率的微弱周期信号极其敏感的特点,首先将采集到的声发射信号的频率压缩至1 ～ 10 rad/s,然后将信号输入Duffing振子阵列系统中,以振子阵列系统的状态转换实现强噪声中泄漏信号的检测.仿真实验证明,该系统在强噪声背景下具有很强的抗干扰能力,能从噪声中检测泄漏信号并能提高泄漏检测的准确率. 提出了一种基于混沌理论的天然气管道的泄漏检测方法.该方法利用混沌理论对噪声具有抑制作用,对同频率的微弱周期信号极其敏感的特点,首先将采集到的声发射信号的频率压缩至1 - 10 rad/s,然后将信号输入Duffing振子阵列系统中,以振子阵列系统的状态转换实现强噪声中泄漏信号的检测.仿真实验证明,该系统在强噪声背景下具有很强的抗干扰能力,能从噪声中检测泄漏信号并能提高泄漏检测的准确率.
Author	胡菊丽张自强高允领
AuthorAffiliation	上海师范大学信息与机电工程学院,上海201418
AuthorAffiliation_xml	– name: 上海师范大学信息与机电工程学院,上海,201418
Author_FL	ZHANG Zi-qiang GAO Yun-ling HU Ju-li
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DocumentTitleAlternate	Leak Detection Experiment of Natural Gas Pipeline Based on Chaos Theory
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Notes	HU Ju-li,ZHANG Zi-qiang,GAO Yun-ling（ Information and Electrical Engineering College, Shanghai Normal University, Shanghai 201418, China） nature gas pipeline network; leak detection; choas theory; acoustic emission As a kind of clean and efficient energy,natural gas gets more and more attention of the world.Flammable and explosion endanger the security of gas pipeline.Pipeline leak detection is an important technology for the safety of pipelines.This method presented is to use the features of chaos phenomenon that can inhibit noise and is extremely sensitive of weak periodic signal with the frequency.Firstly,the frequency of collected acoustic emission signal is compressed to 1-10 rad/s,then the signal is inputted to Duffing oscillator array system.With vibration subsystem state transition,the detection of the leakage signal is transformed into the strong noise.The simulation experiment shows that the system has strong anti-disturbance ability under the strong noise background,and can detect the leakage signal
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SubjectTerms	声发射天然气管网泄漏检测混沌理论
Title	基于混沌理论的天然气管道泄漏检测实验
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