Fiber Bragg Grating differential pressure sensor

Ambastha, Shikha and Umesh, Sharath and Ayiriveetil, Arunbabu and Pant, Shweta and Asokan, Sundarrajan (2016) Fiber Bragg Grating differential pressure sensor. In: 2016 IEEE Conference on Recent Advances in Lightwave Technology, CRALT 2016, 21 - 23 September 2016, Bangalore, pp. 1-3.

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Abstract

The present study proposes a novel real time dynamic pressure sensing device employing Fiber Bragg Grating (FBG) sensor. A hermetically sealed chamber with one surface comprising of a glass epoxy diaphragm is utilized for the differential pressure sensing. The pressure outside the chamber is maintained at atmospheric pressure. Any variation in the pressure inside the chamber will create a pressure differential across the diaphragm, which will in turn create strain variations on the glass epoxy diaphragm. These variations in strain are acquired by the FBG sensor bonded over it. Further, different thicknesses of diaphragms can be tested for pressure sensing, which will react to the change in pressure with different sensitivities. The developed relative pressure sensor is validated against commercial pressure gauge.

Item Type:	Conference Paper
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to the Institute of Electrical and Electronics Engineers Inc.
Keywords:	differential pressure sensor; Fiber Bragg grating pressure sensing; glass epoxy diaphragm
Department/Centre:	Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	07 Jun 2022 05:24
Last Modified:	07 Jun 2022 05:24
URI:	https://eprints.iisc.ac.in/id/eprint/73193

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