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用于厚度监测的锥形波导换能器的优化设计方法

Optimal Design Methodology of Tapered Waveguide Transducers for Thickness Monitoring.

作者信息

Jia Jiuhong, Ren Yue, Wang Weiming, Liao Zuoyu, Zhang Xiancheng, Tu Shan-Tung

机构信息

Key Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China.

出版信息

Sensors (Basel). 2020 Mar 29;20(7):1892. doi: 10.3390/s20071892.

DOI:10.3390/s20071892
PMID:32235338
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7180618/
Abstract

For the purpose of providing transducers for long-term monitoring of wall thinning of critical pressure equipment in corrosion or high temperature environments, the optimal design methodology for tapered waveguide units was proposed in the present study. Firstly, the feasibility of the quasi-fundamental shear horizontal (SH0*) wave propagating in the tapered waveguide units was analyzed via numerical simulations, and the transmitting limitations of the non-dispersive SH0* wave were researched. Secondly, several tapered waveguide transducers with varying cross-sections to transmit pure SH0* wave were designed according to the numerical results. Experimental investigations were carried out, and the results were compared with waveguide transducers with a prismatic cross-section. It was found that the tapered waveguide units can transmit non-dispersive shear horizontal waves and suppress the wave attenuation at the same time. The experimental results agreed very well with the numerical simulations. Finally, high-temperature experiments were carried out, and the reliability of thickness measuring by the tapered waveguide transducers was validated. The errors between the measured and the true thicknesses were small. This work paves a solid foundation for the optimal design of tapered waveguide transducers for thickness monitoring of equipment in harsh environments.

摘要

为了提供用于长期监测腐蚀或高温环境下关键压力设备壁厚减薄情况的传感器,本研究提出了锥形波导单元的优化设计方法。首先,通过数值模拟分析了准基模水平剪切(SH0*)波在锥形波导单元中传播的可行性,并研究了非色散SH0波的传播局限性。其次,根据数值结果设计了几种具有不同横截面以传输纯SH0波的锥形波导传感器。进行了实验研究,并将结果与具有棱柱形横截面的波导传感器进行了比较。结果发现,锥形波导单元可以传输非色散水平剪切波,同时抑制波的衰减。实验结果与数值模拟结果非常吻合。最后,进行了高温实验,验证了锥形波导传感器厚度测量的可靠性。测量厚度与真实厚度之间的误差很小。这项工作为恶劣环境下设备厚度监测的锥形波导传感器的优化设计奠定了坚实的基础。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/8c4cf9ac0fe5/sensors-20-01892-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/f6e7ee571d6b/sensors-20-01892-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/8de86c7f71ee/sensors-20-01892-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/914110906de6/sensors-20-01892-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/125c575cadcc/sensors-20-01892-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/4e80143966f3/sensors-20-01892-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/ab66ddf515b6/sensors-20-01892-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/22f77db5229d/sensors-20-01892-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/092b6fe4aa9f/sensors-20-01892-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/6678bec39a32/sensors-20-01892-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/b49e0c1c71c4/sensors-20-01892-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/08a51411dc38/sensors-20-01892-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/8c4cf9ac0fe5/sensors-20-01892-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/f6e7ee571d6b/sensors-20-01892-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/8de86c7f71ee/sensors-20-01892-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/914110906de6/sensors-20-01892-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/125c575cadcc/sensors-20-01892-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/4e80143966f3/sensors-20-01892-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/ab66ddf515b6/sensors-20-01892-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/22f77db5229d/sensors-20-01892-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/092b6fe4aa9f/sensors-20-01892-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/6678bec39a32/sensors-20-01892-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/b49e0c1c71c4/sensors-20-01892-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/08a51411dc38/sensors-20-01892-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d18/7180618/8c4cf9ac0fe5/sensors-20-01892-g012.jpg

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本文引用的文献

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On-Line Monitoring of Pipe Wall Thinning by a High Temperature Ultrasonic Waveguide System at the Flow Accelerated Corrosion Proof Facility.在流动加速腐蚀防护设施处通过高温超声波导系统对管壁减薄进行在线监测。
Sensors (Basel). 2019 Apr 12;19(8):1762. doi: 10.3390/s19081762.
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Critical Excitation of the Fundamental Quasi-Shear Mode Wave in Waveguide Bars for Elevated Temperature Applications.高温应用中波导杆中基本准剪切模式波的临界激发。
Sensors (Basel). 2019 Feb 15;19(4):793. doi: 10.3390/s19040793.
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Design of Waveguide Bars for Transmitting a Pure Shear Horizontal Wave to Monitor High Temperature Components.
用于传输纯水平剪切波以监测高温部件的波导杆设计。
Materials (Basel). 2017 Sep 4;10(9):1027. doi: 10.3390/ma10091027.
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Waveguide tapering for beam-width control in a waveguide transducer.波导渐变在波导换能器中的波束宽度控制。
Ultrasonics. 2014 Mar;54(3):953-60. doi: 10.1016/j.ultras.2013.11.006. Epub 2013 Nov 27.
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