Development of temperature-insensitive fibre Bragg grating based pressure transducer

Pressure sensors are the essential equipment in the field of pressure measurement. In this study, an aluminium diaphragm-based fibre Bragg grating (FBG) pressure transducer with temperature compensation strategy is presented. FBG-based sensors are good for certain applications, such as biomedical, c...

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Main Author:	Muhammad Aizzuddin, Abdullah
Format:	Thesis
Language:	English
Published:	2019
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/30026/1/Development%20of%20temperature-insensitive%20fibre%20bragg%20grating.pdf
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id	my-ump-ir.30026
record_format	uketd_dc
spelling	my-ump-ir.300262020-11-24T02:21:49Z Development of temperature-insensitive fibre Bragg grating based pressure transducer 2019-07 Muhammad Aizzuddin, Abdullah TJ Mechanical engineering and machinery Pressure sensors are the essential equipment in the field of pressure measurement. In this study, an aluminium diaphragm-based fibre Bragg grating (FBG) pressure transducer with temperature compensation strategy is presented. FBG-based sensors are good for certain applications, such as biomedical, combustion chamber and pressure vessel; particularly those involving harsh enviroment and high electromagnetic disturbance. One of the greatest challenges for utilising an FBG-sensor based transducer is the unstable output spectrum due to temperature variations. This phenomenon results in a huge variation in pressure readings, thus contributing to accuracy problem. To overcome the problem, this study introduced an approach to solve the inconsistency of sensor output by utilising two FBGs that were bonded at the centre of the diaphragm (FBG sensor) and at the base of the pressure transducer (FBG reference). The inconsistency of wavelength was eliminated by normalising the Bragg wavelength variation from the FBG sensor (∆ƛFBG1) with respect to Bragg wavelength variation from the FBG reference (∆ƛFBG2). The results indicated that the FBG pressure transducer had a sensitivity of 2.8485 nm/MPa at room temperature within the range of 22.9°C to 27.8°C and a linear fitting coefficient of 99.97% in a pressure that ranged from 0 MPa to 0.5 MPa. This FBG pressure transducer with temperature compensation technique was proven to be suitable for the pressure measurement of gas with an average error of 2.32% as compared to the conventional pressure gauge available in market. 2019-07 Thesis http://umpir.ump.edu.my/id/eprint/30026/ http://umpir.ump.edu.my/id/eprint/30026/1/Development%20of%20temperature-insensitive%20fibre%20bragg%20grating.pdf pdf en public masters Universiti Malaysia Pahang Faculty of Mechanical and Manufacturing Engineering
institution	Universiti Malaysia Pahang Al-Sultan Abdullah
collection	UMPSA Institutional Repository
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Muhammad Aizzuddin, Abdullah Development of temperature-insensitive fibre Bragg grating based pressure transducer
description	Pressure sensors are the essential equipment in the field of pressure measurement. In this study, an aluminium diaphragm-based fibre Bragg grating (FBG) pressure transducer with temperature compensation strategy is presented. FBG-based sensors are good for certain applications, such as biomedical, combustion chamber and pressure vessel; particularly those involving harsh enviroment and high electromagnetic disturbance. One of the greatest challenges for utilising an FBG-sensor based transducer is the unstable output spectrum due to temperature variations. This phenomenon results in a huge variation in pressure readings, thus contributing to accuracy problem. To overcome the problem, this study introduced an approach to solve the inconsistency of sensor output by utilising two FBGs that were bonded at the centre of the diaphragm (FBG sensor) and at the base of the pressure transducer (FBG reference). The inconsistency of wavelength was eliminated by normalising the Bragg wavelength variation from the FBG sensor (∆ƛFBG1) with respect to Bragg wavelength variation from the FBG reference (∆ƛFBG2). The results indicated that the FBG pressure transducer had a sensitivity of 2.8485 nm/MPa at room temperature within the range of 22.9°C to 27.8°C and a linear fitting coefficient of 99.97% in a pressure that ranged from 0 MPa to 0.5 MPa. This FBG pressure transducer with temperature compensation technique was proven to be suitable for the pressure measurement of gas with an average error of 2.32% as compared to the conventional pressure gauge available in market.
format	Thesis
qualification_level	Master's degree
author	Muhammad Aizzuddin, Abdullah
author_facet	Muhammad Aizzuddin, Abdullah
author_sort	Muhammad Aizzuddin, Abdullah
title	Development of temperature-insensitive fibre Bragg grating based pressure transducer
title_short	Development of temperature-insensitive fibre Bragg grating based pressure transducer
title_full	Development of temperature-insensitive fibre Bragg grating based pressure transducer
title_fullStr	Development of temperature-insensitive fibre Bragg grating based pressure transducer
title_full_unstemmed	Development of temperature-insensitive fibre Bragg grating based pressure transducer
title_sort	development of temperature-insensitive fibre bragg grating based pressure transducer
granting_institution	Universiti Malaysia Pahang
granting_department	Faculty of Mechanical and Manufacturing Engineering
publishDate	2019
url	http://umpir.ump.edu.my/id/eprint/30026/1/Development%20of%20temperature-insensitive%20fibre%20bragg%20grating.pdf
_version_	1783732131142303744

Development of temperature-insensitive fibre Bragg grating based pressure transducer

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