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Study of a Fiber Optic Fabry-Perot Strain Sensor for Fuel Assembly Strain Detection
This paper proposes a fiber optic Fabry-Perot (F-P) strain sensing system using non-scan correlation demodulation applied to the health monitoring of the pressurized water reactor’s fuel assembly structures. The structural design and sensing mechanism analysis of the sensor were carried out, and the...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9740622/ https://www.ncbi.nlm.nih.gov/pubmed/36501797 http://dx.doi.org/10.3390/s22239097 |
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author | Jiao, Jianan Chen, Jianjun Wang, Ning Zhang, Jie Zhu, Yong |
author_facet | Jiao, Jianan Chen, Jianjun Wang, Ning Zhang, Jie Zhu, Yong |
author_sort | Jiao, Jianan |
collection | PubMed |
description | This paper proposes a fiber optic Fabry-Perot (F-P) strain sensing system using non-scan correlation demodulation applied to the health monitoring of the pressurized water reactor’s fuel assembly structures. The structural design and sensing mechanism analysis of the sensor were carried out, and the strain transfer model from the fuel sheet to the strain gauge was established. After the sensor fabrication and installation, the static tests have been conducted, and the results indicate that the sensing system can accurately measure the microstrain with a sensitivity of up to 12.6 nm/με at a high temperature (300 °C). The dynamic testing shows that the sensing system has a good frequency adaptation at 10–500 Hz. Thermal-hydraulic experiments show that the sensing system can run stably in a nuclear reactor, with high temperature, high pressure, and high-velocity flow flushing; additionally, the consistency deviation of the measured data is less than 1.5%. |
format | Online Article Text |
id | pubmed-9740622 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-97406222022-12-11 Study of a Fiber Optic Fabry-Perot Strain Sensor for Fuel Assembly Strain Detection Jiao, Jianan Chen, Jianjun Wang, Ning Zhang, Jie Zhu, Yong Sensors (Basel) Communication This paper proposes a fiber optic Fabry-Perot (F-P) strain sensing system using non-scan correlation demodulation applied to the health monitoring of the pressurized water reactor’s fuel assembly structures. The structural design and sensing mechanism analysis of the sensor were carried out, and the strain transfer model from the fuel sheet to the strain gauge was established. After the sensor fabrication and installation, the static tests have been conducted, and the results indicate that the sensing system can accurately measure the microstrain with a sensitivity of up to 12.6 nm/με at a high temperature (300 °C). The dynamic testing shows that the sensing system has a good frequency adaptation at 10–500 Hz. Thermal-hydraulic experiments show that the sensing system can run stably in a nuclear reactor, with high temperature, high pressure, and high-velocity flow flushing; additionally, the consistency deviation of the measured data is less than 1.5%. MDPI 2022-11-23 /pmc/articles/PMC9740622/ /pubmed/36501797 http://dx.doi.org/10.3390/s22239097 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Communication Jiao, Jianan Chen, Jianjun Wang, Ning Zhang, Jie Zhu, Yong Study of a Fiber Optic Fabry-Perot Strain Sensor for Fuel Assembly Strain Detection |
title | Study of a Fiber Optic Fabry-Perot Strain Sensor for Fuel Assembly Strain Detection |
title_full | Study of a Fiber Optic Fabry-Perot Strain Sensor for Fuel Assembly Strain Detection |
title_fullStr | Study of a Fiber Optic Fabry-Perot Strain Sensor for Fuel Assembly Strain Detection |
title_full_unstemmed | Study of a Fiber Optic Fabry-Perot Strain Sensor for Fuel Assembly Strain Detection |
title_short | Study of a Fiber Optic Fabry-Perot Strain Sensor for Fuel Assembly Strain Detection |
title_sort | study of a fiber optic fabry-perot strain sensor for fuel assembly strain detection |
topic | Communication |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9740622/ https://www.ncbi.nlm.nih.gov/pubmed/36501797 http://dx.doi.org/10.3390/s22239097 |
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