Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7128469 | Optics & Laser Technology | 2018 | 5 Pages |
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 329.56â¯pm/kPa or corresponding to 10.7893â¯kPaâ1 across the range of 0 to 10â¯kPa with a good linearity of 99.76%. Furthermore, the thermal cross-sensitivity is compensated.
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Authors
E. Vorathin, Z.M. Hafizi, A.M. Aizzuddin, K.S. Lim,