Development of temperature-insensitive fibre bragg grating pressure transducer

Z. M., Hafizi and A. M., Aizuddin and E., Vorathin (2020) Development of temperature-insensitive fibre bragg grating pressure transducer. In: IOP Conference Series: Materials Science and Engineering, 5th International Conference on Mechanical Engineering Research (ICMER 2019) , 30-31 July 2019 , Kuantan, Malaysia. pp. 1-10., 788 (012088). ISSN 1757-899X

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In this work, the development of an aluminium diaphragm fibre Bragg grating (FBG) pressure transducer with temperature compensation strategy is presented. One of the big challenges for the applications of an FBG pressure transducer is the inconsistency in output wavelength due to temperature variations. This situation leads to huge uncertainties in pressure readings. The aim of this article is to present how to eliminate the effects of temperature variations to the pressure measurements. Two FBG sensors were used; namely as FBG 1 and FBG 2. These FBGs were bonded each one on the diaphragm and base surface of the pressure transducer. The strain readings by the FBG on the diaphragm was normalized by the FBG reference which was pasted on the transducer’s base. This temperature compensation strategy was successful and the FBG pressure transducer was proven to be suitable for pressure measurement of gas with an average error of 2.32%. Besides, the result also shows that, for pressure ranging from 0 to 0.5 MPa, the FBG pressure transduced has sensitivity of 2.8485 nm/MPa with linear fitting coefficient of 99.97%.

Item Type: Conference or Workshop Item (Lecture)
Uncontrolled Keywords: Fibre Bragg Grating (FBG); Pressure sensor; Temperature compensation
Subjects: T Technology > TJ Mechanical engineering and machinery
Faculty/Division: Faculty of Mechanical Engineering
Institute of Postgraduate Studies
Depositing User: Pn. Hazlinda Abd Rahman
Date Deposited: 19 Nov 2020 07:35
Last Modified: 17 Oct 2022 07:25
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