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

Vorathin, E. and Z. M., Hafizi and A. M., Aizzuddin and K. S., Lim (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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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: T Technology > TJ Mechanical engineering and machinery
Faculty/Division: Faculty of Mechanical Engineering
Depositing User: Mrs. Neng Sury Sulaiman
Date Deposited: 03 May 2018 02:13
Last Modified: 03 May 2018 02:13
URI: http://umpir.ump.edu.my/id/eprint/21112
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