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Development of Fibre Bragg grating (FBG) dynamic pressure transducer with diminutive voltage inconsistency

A. M., Aizzuddin and Mohd Hafizi, Zohari and Kee, L. V. and Vorathin, E. and Lim, Kok Sing (2017) Development of Fibre Bragg grating (FBG) dynamic pressure transducer with diminutive voltage inconsistency. In: IOP Conference Series: Materials Science and Engineering, 4th International Conference on Mechanical Engineering Research, ICMER 2017, 1-2 August 2017 , The Swiss Garden Beach Resort, Kuantan. pp. 1-10., 257 (012080). ISSN 1757-899X

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Abstract

In this work, a diaphragm-type Fibre Bragg grating (FBG) dynamic pressure transducer was designed and developed. Pressure transducer in this study consists of elastic thin metal diaphragm which acts as a primary sensing element; and integrated with an FBG sensor for the secondary sensing element. In the common match filter interrogation system, converting optical signal to voltage is the challenging due to voltage reading inconsistency, which would cause variation in pressure reading. New alternative arrangements of matched filter interrogation system are used to address the issue. For automated pressure measurement, the optical signal from FBG was converted into voltage by using the proposed arrangement of matched filter interrogation system. Additional FBG was added as reference sensor which installed in the system for detection the change of broadband light source. Reduction of voltage inconsistency was achieved by normalizing the voltage reading from sensor with the voltage reading from reference FBG. The result shows that the FBG pressure transducer is proven to be suitable for pressure measurement of gas or liquid with an average error of 5.348%. Furthermore, the FBG sensor has a good linearity with a linear correlation coefficient of 97.29% in pressure measurement.

Item Type: Conference or Workshop Item (Speech)
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Fibre bragg grating; Diminutive voltage; Fiber optic sensors; Dynamics; Electric sensing devices
Subjects: T Technology > TJ Mechanical engineering and machinery
Faculty/Division: Faculty of Mechanical Engineering
Depositing User: Pn. Hazlinda Abd Rahman
Date Deposited: 28 Aug 2018 07:17
Last Modified: 03 Sep 2018 06:42
URI: http://umpir.ump.edu.my/id/eprint/21054
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