Durability Optimization of Fiber Grating Hydrogen Sensor Based on Residual Stress

In this paper, in order to improve the durability of optical fiber grating hydrogen sensors, an optical fiber grating hydrogen sensor with high precision, stability, and durability is prepared. Based on the simplified two-dimensional model and finite element analysis, the effects of film thickness,...

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Autores principales:	Wenbo Ma, Yuyang Li, Ning Yang, Li Fan, Yanli Chen, Xuan Zhou, Jiaping Li, Caiqian Yang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	palladium film Bragg fiber grating durability life and death unit method hydrogen sensitive film Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/ceca4552dfb74779b6d7037c71129f6f
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spelling	oai:doaj.org-article:ceca4552dfb74779b6d7037c71129f6f2021-11-25T18:58:16ZDurability Optimization of Fiber Grating Hydrogen Sensor Based on Residual Stress10.3390/s212276571424-8220https://doaj.org/article/ceca4552dfb74779b6d7037c71129f6f2021-11-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/22/7657https://doaj.org/toc/1424-8220In this paper, in order to improve the durability of optical fiber grating hydrogen sensors, an optical fiber grating hydrogen sensor with high precision, stability, and durability is prepared. Based on the simplified two-dimensional model and finite element analysis, the effects of film thickness, coating speed, and coating times on the residual Mises equivalent stress between the sensor film and substrate were studied, and the optimum coating parameters were determined. The finite element analysis results show that the residual equivalent stress between the film and the substrate increases with the increase in the film thickness between 50 and 150 nm. The range of 200–250 nm is relatively stable, and the value is small. The coating speed has almost no effect on the residual equivalent stress. When the thickness of the film is 200 nm, the residual equivalent stress decreases with the increase in coating times, and the equivalent force is the lowest when the film is coated three times. The best coating parameters are the thickness of 200 nm, the speed of 62.5 μm/s, and the times of coating three times. The results of finite element analysis are verified by the hydrogen sensitivity test and durability test.Wenbo MaYuyang LiNing YangLi FanYanli ChenXuan ZhouJiaping LiCaiqian YangMDPI AGarticlepalladium filmBragg fiber gratingdurabilitylife and death unit methodhydrogen sensitive filmChemical technologyTP1-1185ENSensors, Vol 21, Iss 7657, p 7657 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	palladium film Bragg fiber grating durability life and death unit method hydrogen sensitive film Chemical technology TP1-1185
spellingShingle	palladium film Bragg fiber grating durability life and death unit method hydrogen sensitive film Chemical technology TP1-1185 Wenbo Ma Yuyang Li Ning Yang Li Fan Yanli Chen Xuan Zhou Jiaping Li Caiqian Yang Durability Optimization of Fiber Grating Hydrogen Sensor Based on Residual Stress
description	In this paper, in order to improve the durability of optical fiber grating hydrogen sensors, an optical fiber grating hydrogen sensor with high precision, stability, and durability is prepared. Based on the simplified two-dimensional model and finite element analysis, the effects of film thickness, coating speed, and coating times on the residual Mises equivalent stress between the sensor film and substrate were studied, and the optimum coating parameters were determined. The finite element analysis results show that the residual equivalent stress between the film and the substrate increases with the increase in the film thickness between 50 and 150 nm. The range of 200–250 nm is relatively stable, and the value is small. The coating speed has almost no effect on the residual equivalent stress. When the thickness of the film is 200 nm, the residual equivalent stress decreases with the increase in coating times, and the equivalent force is the lowest when the film is coated three times. The best coating parameters are the thickness of 200 nm, the speed of 62.5 μm/s, and the times of coating three times. The results of finite element analysis are verified by the hydrogen sensitivity test and durability test.
format	article
author	Wenbo Ma Yuyang Li Ning Yang Li Fan Yanli Chen Xuan Zhou Jiaping Li Caiqian Yang
author_facet	Wenbo Ma Yuyang Li Ning Yang Li Fan Yanli Chen Xuan Zhou Jiaping Li Caiqian Yang
author_sort	Wenbo Ma
title	Durability Optimization of Fiber Grating Hydrogen Sensor Based on Residual Stress
title_short	Durability Optimization of Fiber Grating Hydrogen Sensor Based on Residual Stress
title_full	Durability Optimization of Fiber Grating Hydrogen Sensor Based on Residual Stress
title_fullStr	Durability Optimization of Fiber Grating Hydrogen Sensor Based on Residual Stress
title_full_unstemmed	Durability Optimization of Fiber Grating Hydrogen Sensor Based on Residual Stress
title_sort	durability optimization of fiber grating hydrogen sensor based on residual stress
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ceca4552dfb74779b6d7037c71129f6f
work_keys_str_mv	AT wenboma durabilityoptimizationoffibergratinghydrogensensorbasedonresidualstress AT yuyangli durabilityoptimizationoffibergratinghydrogensensorbasedonresidualstress AT ningyang durabilityoptimizationoffibergratinghydrogensensorbasedonresidualstress AT lifan durabilityoptimizationoffibergratinghydrogensensorbasedonresidualstress AT yanlichen durabilityoptimizationoffibergratinghydrogensensorbasedonresidualstress AT xuanzhou durabilityoptimizationoffibergratinghydrogensensorbasedonresidualstress AT jiapingli durabilityoptimizationoffibergratinghydrogensensorbasedonresidualstress AT caiqianyang durabilityoptimizationoffibergratinghydrogensensorbasedonresidualstress
_version_	1718410491392425984

Durability Optimization of Fiber Grating Hydrogen Sensor Based on Residual Stress

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