A highly sensitive multiplexed FBG pressure transducer based on natural rubber diaphragm and ultrathin aluminium sheet

Vorathin, E. and Zohari, Mohd Hafizi and Aizzuddin, A.M. and Lim, Kok Sing (2018) A highly sensitive multiplexed FBG pressure transducer based on natural rubber diaphragm and ultrathin aluminium sheet. Optics & Laser Technology, 106. pp. 177-181. ISSN 0030-3992

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Official URL: https://doi.org/10.1016/j.optlastec.2018.04.003

Abstract

Pressure measurement with a good sensitivity has always been a concern in most of the engineering applications and biomedical field. In this paper, a multiplexed FBG bonded on an ultrathin aluminium sheet which act as a cantilever deflected due to a deformation from a natural rubber based diaphragm has been proposed and studied. By using two gratings inscribed on a single optical fibre which senses the positive and negative strain has enhanced the sensitivity of the pressure transducer recorded at 329.56 pm/kPa or corresponding to 10.7893 kPa−1 across the range of 0 to 10 kPa with a good linearity of 99.76%. Furthermore, the thermal cross-sensitivity is compensated.

Item Type: Article
Uncontrolled Keywords: Fibre Bragg Grating (FBG); Pressure sensor; Temperature compensation
Subjects: Q Science > Q Science (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Science
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 21 Feb 2019 03:22
Last Modified: 21 Feb 2019 03:22
URI: http://eprints.um.edu.my/id/eprint/20418

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