| 燃气调压器声发射信号特征与流量关系分析 |
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| 引用本文： | 雷岩,王玉玲,刘瑶,陈涛涛,苏峥,钱迪,高岷,李红浪.燃气调压器声发射信号特征与流量关系分析[J].管道技术与设备,2020(2):34-36. |
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| 作者姓名： | 雷岩 王玉玲 刘瑶 陈涛涛 苏峥 钱迪 高岷 李红浪 |
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| 作者单位： | 北京燃气集团有限责任公司;中国科学院大学;中国科学院声学研究所;国家纳米科学中心 |
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| 基金项目： | 北京市燃气集团高压管网分公司支持项目(19JK011)。 |
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| 摘 要： | 文中提取燃气调压器声发射信号的标准差、峭度这两个时域特征及重心频率、均方根频率这两个频域特征,分析特征与流量的对应关系,使用相关系数进行评价。基于北京某调压站采集的声发射信号及流量数据,实验结果表明,流量与标准差、峭度、重心频率、均方根频率的相关系数分别为0.8192、0.2889、0.7745、0.641。可见标准差、重心频率及均方根频率与流量相关性较强,峭度与流量相关性较弱。
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| 关 键 词： | 燃气调压器 声发射信号 特征提取 流量 |
Analysis of Relationship Between Acoustic Emission Signal Characteristics and Flow Rate of Gas Pressure Regulator |
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| LEI Yan,WANG Yu-ling,LIU Yao,CHEN Tao-tao,SU Zheng,QIAN Di,GAO Min,LI Hong-lang.Analysis of Relationship Between Acoustic Emission Signal Characteristics and Flow Rate of Gas Pressure Regulator[J].Pipeline Technique and Equipment,2020(2):34-36. |
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| Authors: | LEI Yan WANG Yu-ling LIU Yao CHEN Tao-tao SU Zheng QIAN Di GAO Min LI Hong-lang |
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| Institution: | (Beijing Gas Group Co., Ltd., Beijing 100011, China;Chinese Academy of Sciences University, Beijing 101408, China;Institute of Acoustics, Chinese Academy of Science, Beijing 100190, China;The National Center for Nanoscience and Technology, Beijing 100190, China) |
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| Abstract: | In this paper,the two time-domain characteristics of the standard deviation and kurtosis,the two frequency domain characteristics of the frequency center and mean square frequency of the acoustic transducer were extracted,and the corresponding relationship between the feature and the flow was analyzed.Based on the acoustic emission signals and flow data collected by a pressure regulating station in Beijing,the experimental results show that the correlation coefficients of flow and standard deviation,kurtosis,frequency center and root mean square frequency were 0.8192,0.2889,0.7745,0.641.It can be seen that the standard deviation,frequency center and root mean square frequency are strongly correlated with the flow,and the correlation between the kurtosis and the flow is weak. |
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| Keywords: | gas pressure regulator acoustic emission signal feature extraction flow |
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