Optimal Design Methodology of Tapered Waveguide Transducers for Thickness Monitoring
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-fundame...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-03-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/20/7/1892 |
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| author | Jiuhong Jia Yue Ren Weiming Wang Zuoyu Liao Xiancheng Zhang Shan-Tung Tu |
| author_facet | Jiuhong Jia Yue Ren Weiming Wang Zuoyu Liao Xiancheng Zhang Shan-Tung Tu |
| author_sort | Jiuhong Jia |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-11T10:09:51Z |
| format | Article |
| id | doaj.art-686f307307c84deebea81e5581564e8c |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-11T10:09:51Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-686f307307c84deebea81e5581564e8c2023-11-16T14:35:10ZengMDPI AGSensors1424-82202020-03-01207189210.3390/s20071892Optimal Design Methodology of Tapered Waveguide Transducers for Thickness MonitoringJiuhong Jia0Yue Ren1Weiming Wang2Zuoyu Liao3Xiancheng Zhang4Shan-Tung Tu5Key Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Science and Technology, Shanghai 200237, ChinaKey Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Science and Technology, Shanghai 200237, ChinaKey Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Science and Technology, Shanghai 200237, ChinaKey Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Science and Technology, Shanghai 200237, ChinaKey Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Science and Technology, Shanghai 200237, ChinaKey Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Science and Technology, Shanghai 200237, ChinaFor 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.https://www.mdpi.com/1424-8220/20/7/1892harsh environmentstructural health monitoringtapered waveguide unitthe quasi-fundamental shear horizontal waveoptimal design |
| spellingShingle | Jiuhong Jia Yue Ren Weiming Wang Zuoyu Liao Xiancheng Zhang Shan-Tung Tu Optimal Design Methodology of Tapered Waveguide Transducers for Thickness Monitoring Sensors harsh environment structural health monitoring tapered waveguide unit the quasi-fundamental shear horizontal wave optimal design |
| title | Optimal Design Methodology of Tapered Waveguide Transducers for Thickness Monitoring |
| title_full | Optimal Design Methodology of Tapered Waveguide Transducers for Thickness Monitoring |
| title_fullStr | Optimal Design Methodology of Tapered Waveguide Transducers for Thickness Monitoring |
| title_full_unstemmed | Optimal Design Methodology of Tapered Waveguide Transducers for Thickness Monitoring |
| title_short | Optimal Design Methodology of Tapered Waveguide Transducers for Thickness Monitoring |
| title_sort | optimal design methodology of tapered waveguide transducers for thickness monitoring |
| topic | harsh environment structural health monitoring tapered waveguide unit the quasi-fundamental shear horizontal wave optimal design |
| url | https://www.mdpi.com/1424-8220/20/7/1892 |
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