电子测量与仪器学报

袁勤文,裘国华,田珊珊,沈嘉诚.中长距离压力管道裂缝缺陷微波检测研究[J].电子测量与仪器学报,2023,37(9):41-50

中长距离压力管道裂缝缺陷微波检测研究

Research on microwave detection of slits in medium to long distance pressure pipes

DOI：

英文关键词:microwave nondestructive testing straight pipe bent pipe slit defect

基金项目:浙江省基础公益研究计划项目(LGF19F010003)资助

作者	单位
袁勤文	1. 中国计量大学信息工程学院，2. 浙江省电磁波信息技术与计量检测重点实验室
裘国华	1. 中国计量大学信息工程学院，2. 浙江省电磁波信息技术与计量检测重点实验室
田珊珊	1. 中国计量大学信息工程学院，2. 浙江省电磁波信息技术与计量检测重点实验室
沈嘉诚	1. 中国计量大学信息工程学院，2. 浙江省电磁波信息技术与计量检测重点实验室

Author	Institution
Yuan Qinwen	1. College of Information Engineering, China Jiliang University,2. Key Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang Province
Qiu Guohua	1. College of Information Engineering, China Jiliang University,2. Key Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang Province
Tian Shanshan	1. College of Information Engineering, China Jiliang University,2. Key Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang Province
Shen Jiacheng	1. College of Information Engineering, China Jiliang University,2. Key Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang Province

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中文摘要:

本文探究了微波无损检测技术在中长距离压力管道的裂缝缺陷检测中的应用。从理论上分析了微波在具有弯曲的压力管道内传输的特点以及裂缝检测的方法。通过仿真模拟了微波在中长距离管道内的传输以及经过弯管后的微波模式的改变,验证了在直管道与弯曲管道中检测裂缝缺陷的可行性。构造长度超过 5 m,直径为 8 cm 的直管道与弯曲管道,使用矢量网络分析仪与螺旋天线将微波导入管道中,对轴向、周向以及斜向裂缝进行检测,观察无缝与有缝甚至多条裂缝情况下的 S11 参数的幅度的改变并确定裂缝所在的位置。对于直管道中的轴向,周向和斜向裂缝检测,误差分别为管道总长的 0. 047%、 0. 018%和 0. 298%,对于弯曲管道中轴向、周向和斜向裂缝检测,误差分别为管道总长的 0. 074%、0. 065%和 0. 203%,表明建立了一种有效的远程检测中长距离管道裂缝的方法。

英文摘要:

This article explores the microwave non-destructive testing technology for slit defects in medium to long distance pressure pipes. The characteristics of microwave transmission in bent pressure pipes and methods for slits detection were theoretically analyzed. The feasibility of detecting slit defects in straight and bent pipes was verified by simulating the transmission of microwave in medium to long distance pipes and the changes in microwave mode after passing through bend. Straight and bent pipes with a length of more than 5 m and a diameter of 8 cm were constructed and microwaves were introduced into the pipes using a vector network analyzer and a spiral antenna to detect axial, circumferential, and oblique slits, and the amplitude of the S11 parameter was varied in the case of slitless, slit, and even multiple slits to determine the location of the slits. For axial, circumferential, and oblique slits detection in straight pipes, the errors are 0. 047%, 0. 018%, and 0. 298% of the total pipes length, respectively. For axial, circumferential, and oblique slits detection in bent pipes, the errors are 0. 074%, 0. 065%, and 0. 203% of the total pipes length, respectively. This indicates that an effective remote detection method for medium to long distance pipes slits has been established.

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