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Fiber optic Fabry–Perot sensor that can amplify ultrasonic wave for an enhanced partial discharge detection

Ultrasonic wave is a powerful tool for many applications, such as structural health monitoring, medical diagnosis and partial discharges (PDs) detection. The fiber optic extrinsic Fabry–Perot interferometric (EFPI) sensor has become an ideal candidate for detecting weak ultrasonic signals due to its...

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Autores principales: Li, Haoyong, Bu, Jian, Li, Wenli, Lv, Jiaming, Wang, Xiejun, Hu, Kejia, Yu, Yiting
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8060332/
https://www.ncbi.nlm.nih.gov/pubmed/33883670
http://dx.doi.org/10.1038/s41598-021-88144-4
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author Li, Haoyong
Bu, Jian
Li, Wenli
Lv, Jiaming
Wang, Xiejun
Hu, Kejia
Yu, Yiting
author_facet Li, Haoyong
Bu, Jian
Li, Wenli
Lv, Jiaming
Wang, Xiejun
Hu, Kejia
Yu, Yiting
author_sort Li, Haoyong
collection PubMed
description Ultrasonic wave is a powerful tool for many applications, such as structural health monitoring, medical diagnosis and partial discharges (PDs) detection. The fiber optic extrinsic Fabry–Perot interferometric (EFPI) sensor has become an ideal candidate for detecting weak ultrasonic signals due to its inherent advantages, and each time with a performance enhancement, it can bring great application potential in broadened fields. Herein, an EFPI ultrasonic sensor for PDs detection is proposed. The sensing diaphragm uses a 5-μm-thickness and beam-supported structure to improve the responsive sensitivity of the sensor at the resonant frequency. Furthermore, the ability of the sensor to detect characteristic ultrasonic signal of PDs is further enhanced by assembling a Fresnel-zone-plate (FZP)-based ultrasonic lens with the sensing probe to amplify the ultrasonic wave before it excites the sensing diaphragm. The final testing results show that the originally developed sensor owns the sensitivity of − 19.8 dB re. 1 V/Pa at resonant frequency. While, when the FZP is assembled with the probe, the sensitivity reaches to − 12.4 dB re. 1 V/Pa, and leads to a narrower frequency band, which indicates that the proposed method has a great potential to enhance the detection ability of sensor to characteristic ultrasonic wave of PDs.
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spelling pubmed-80603322021-04-23 Fiber optic Fabry–Perot sensor that can amplify ultrasonic wave for an enhanced partial discharge detection Li, Haoyong Bu, Jian Li, Wenli Lv, Jiaming Wang, Xiejun Hu, Kejia Yu, Yiting Sci Rep Article Ultrasonic wave is a powerful tool for many applications, such as structural health monitoring, medical diagnosis and partial discharges (PDs) detection. The fiber optic extrinsic Fabry–Perot interferometric (EFPI) sensor has become an ideal candidate for detecting weak ultrasonic signals due to its inherent advantages, and each time with a performance enhancement, it can bring great application potential in broadened fields. Herein, an EFPI ultrasonic sensor for PDs detection is proposed. The sensing diaphragm uses a 5-μm-thickness and beam-supported structure to improve the responsive sensitivity of the sensor at the resonant frequency. Furthermore, the ability of the sensor to detect characteristic ultrasonic signal of PDs is further enhanced by assembling a Fresnel-zone-plate (FZP)-based ultrasonic lens with the sensing probe to amplify the ultrasonic wave before it excites the sensing diaphragm. The final testing results show that the originally developed sensor owns the sensitivity of − 19.8 dB re. 1 V/Pa at resonant frequency. While, when the FZP is assembled with the probe, the sensitivity reaches to − 12.4 dB re. 1 V/Pa, and leads to a narrower frequency band, which indicates that the proposed method has a great potential to enhance the detection ability of sensor to characteristic ultrasonic wave of PDs. Nature Publishing Group UK 2021-04-21 /pmc/articles/PMC8060332/ /pubmed/33883670 http://dx.doi.org/10.1038/s41598-021-88144-4 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Li, Haoyong
Bu, Jian
Li, Wenli
Lv, Jiaming
Wang, Xiejun
Hu, Kejia
Yu, Yiting
Fiber optic Fabry–Perot sensor that can amplify ultrasonic wave for an enhanced partial discharge detection
title Fiber optic Fabry–Perot sensor that can amplify ultrasonic wave for an enhanced partial discharge detection
title_full Fiber optic Fabry–Perot sensor that can amplify ultrasonic wave for an enhanced partial discharge detection
title_fullStr Fiber optic Fabry–Perot sensor that can amplify ultrasonic wave for an enhanced partial discharge detection
title_full_unstemmed Fiber optic Fabry–Perot sensor that can amplify ultrasonic wave for an enhanced partial discharge detection
title_short Fiber optic Fabry–Perot sensor that can amplify ultrasonic wave for an enhanced partial discharge detection
title_sort fiber optic fabry–perot sensor that can amplify ultrasonic wave for an enhanced partial discharge detection
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8060332/
https://www.ncbi.nlm.nih.gov/pubmed/33883670
http://dx.doi.org/10.1038/s41598-021-88144-4
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