Fiber optic temperature sensor based on No-Core Fiber (NCF) for high temperature sensing

This paper proposes an improved fiber optic temperature sensor based on No- Core-Fiber (NCF) with sol-gel coating material for high temperature sensing. The main advantage of this sensor is the multimode interference (MMI) effect could react better to the changes of its surrounding compared with the...

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Main Author:	Mohamed, Norhafniza
Format:	Thesis
Language:	English
Published:	2019
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/86165/1/NorhafnizaMohamedMSKE2019.pdf
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id	my-utm-ep.86165
record_format	uketd_dc
spelling	my-utm-ep.861652020-08-30T09:04:59Z Fiber optic temperature sensor based on No-Core Fiber (NCF) for high temperature sensing 2019 Mohamed, Norhafniza TK Electrical engineering. Electronics Nuclear engineering This paper proposes an improved fiber optic temperature sensor based on No- Core-Fiber (NCF) with sol-gel coating material for high temperature sensing. The main advantage of this sensor is the multimode interference (MMI) effect could react better to the changes of its surrounding compared with the multimode fiber. Without a physical cladding, an NCF will consider its surrounding as the cladding layer that facilitates the total internal reflection of the propagated light wave. With that configuration, changes of surrounding refractive index will impact the MMI effect directly. The design of sensor using Rsoft Beam Prop software has been carried out to determine the power intensity and temperature sensitivity. In addition, three different sol-gel materials were used to evaluate the sensor performance. From the simulation result, compared to TiO2 and SiNx, it is found that the ZrO2 coating has most significant performance in enhancing seven time greater than without coating within temperature range of 25 °C to 100 °C. The temperature sensitivity became 0.01637 dB/°C rather than 0.0225 dB/°C. Therefore, the sensor with ZrO2 is the most suitable for monitoring the high-temperature sensing applications. 2019 Thesis http://eprints.utm.my/id/eprint/86165/ http://eprints.utm.my/id/eprint/86165/1/NorhafnizaMohamedMSKE2019.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:132687 masters Universiti Teknologi Malaysia, Faculty of Engineering - School of Electrical Engineering Faculty of Engineering - School of Electrical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Mohamed, Norhafniza Fiber optic temperature sensor based on No-Core Fiber (NCF) for high temperature sensing
description	This paper proposes an improved fiber optic temperature sensor based on No- Core-Fiber (NCF) with sol-gel coating material for high temperature sensing. The main advantage of this sensor is the multimode interference (MMI) effect could react better to the changes of its surrounding compared with the multimode fiber. Without a physical cladding, an NCF will consider its surrounding as the cladding layer that facilitates the total internal reflection of the propagated light wave. With that configuration, changes of surrounding refractive index will impact the MMI effect directly. The design of sensor using Rsoft Beam Prop software has been carried out to determine the power intensity and temperature sensitivity. In addition, three different sol-gel materials were used to evaluate the sensor performance. From the simulation result, compared to TiO2 and SiNx, it is found that the ZrO2 coating has most significant performance in enhancing seven time greater than without coating within temperature range of 25 °C to 100 °C. The temperature sensitivity became 0.01637 dB/°C rather than 0.0225 dB/°C. Therefore, the sensor with ZrO2 is the most suitable for monitoring the high-temperature sensing applications.
format	Thesis
qualification_level	Master's degree
author	Mohamed, Norhafniza
author_facet	Mohamed, Norhafniza
author_sort	Mohamed, Norhafniza
title	Fiber optic temperature sensor based on No-Core Fiber (NCF) for high temperature sensing
title_short	Fiber optic temperature sensor based on No-Core Fiber (NCF) for high temperature sensing
title_full	Fiber optic temperature sensor based on No-Core Fiber (NCF) for high temperature sensing
title_fullStr	Fiber optic temperature sensor based on No-Core Fiber (NCF) for high temperature sensing
title_full_unstemmed	Fiber optic temperature sensor based on No-Core Fiber (NCF) for high temperature sensing
title_sort	fiber optic temperature sensor based on no-core fiber (ncf) for high temperature sensing
granting_institution	Universiti Teknologi Malaysia, Faculty of Engineering - School of Electrical Engineering
granting_department	Faculty of Engineering - School of Electrical Engineering
publishDate	2019
url	http://eprints.utm.my/id/eprint/86165/1/NorhafnizaMohamedMSKE2019.pdf
_version_	1747818499679453184

Fiber optic temperature sensor based on No-Core Fiber (NCF) for high temperature sensing

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