| 工业管道声发射信号衰减测试及定位分析 |
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| 引用本文： | 汪文有,杨剑锋.工业管道声发射信号衰减测试及定位分析[J].管道技术与设备,2010(1):27-30. |
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| 作者姓名： | 汪文有 杨剑锋 |
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| 作者单位： | 北京化工大学化工安全教育部工程研究中心,北京,100029 |
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| 摘 要： | 简述了工业管道输送流体流动特性，以及声发射技术在管道检测中的应用。采用手持式声发射检测仪器配合不同频率传感器对在役工业管道进行检测，研究焊接有三通、法兰、阀门等外接接口的不规则管道的定位特征，对比分析规则管道与焊有外接接口的不规则管道衰减特征区别，通过对现场数据的分析，得到管道损伤定位与传播声速之间的相互关系以及不同传播速度条件下产生的定位误差，综合分析误差产生原因，作为对现场检测的经验。
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| 关 键 词： | 声发射 线定位 误差分析 |
Analysis of the Position and Attenuation of Signal for Acoustic Emission Testing of Industrial Pipeline |
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| WANG Wen-you,YANG Jian-feng.Analysis of the Position and Attenuation of Signal for Acoustic Emission Testing of Industrial Pipeline[J].Pipeline Technique and Equipment,2010(1):27-30. |
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| Authors: | WANG Wen-you YANG Jian-feng |
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| Institution: | Education Ministry Engineering Research Center ofChemical Engineering Safety;Beijing University of Chemical Technology;Beijing 100029;China |
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| Abstract: | The paper introduces briefly the characteristic of the fluid flow in the industrial pipelines in service by using a handheld acoustic emission detector.It studies the attenuating characteristics of fluid-filled channels at different frequencies and the positioning features of irregular channels which are welded by tee joints,flanges,valves and other interfaces.The differences of attenuating characteristics between regular pipelines and irregular ones welded with an external inteface are analysed with compar... |
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| Keywords: | acoustic emission line location error analysis |
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