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Conference paper

Polymer Optical Fibre Bragg Grating Humidity Sensor at 100ºC

In Proceedings of the 25th International Conference on Plastic Optical Fibers 2016 — 2016

By Woyessa, Getinet1,2; Fasano, Andrea3,4; Markos, Christos1,2; Rasmussen, Henrik K.3,4; Bang, Ole1,2

From

Department of Photonics Engineering, Technical University of Denmark1

Fiber Sensors & Supercontinuum, Department of Photonics Engineering, Technical University of Denmark2

Department of Mechanical Engineering, Technical University of Denmark3

Manufacturing Engineering, Department of Mechanical Engineering, Technical University of Denmark4

We have demonstrated a polymer optical fibre Bragg grating humidity sensor that can be operated up to 100ºC. The sensor has been fabricated from a polycarbonate (PC) microstructured polymer optical fibre Bragg grating (mPOFBG). PC mPOFBG gave a relative humidity (RH) sensitivity of 6.95±0.83 pm/% RH in the range 10-90% RH at 100ºC and a temperature sensitivity of 25.94±0.47 pm/ºC in the range 20 - 100 ºC at 90% RH.

Despite PC mPOFBGs shows smaller humidity sensitivity compared to PMMA mPOFBGs, they can be used to sense humidity beyond the operating temperature limit of PMMA mPOFBGs.

Language: English
Publisher: University of Aston in Birmingham
Year: 2016
Proceedings: 25th International Conference on Plastic Optical Fibres
ISBN: 1854494082 and 9781854494085
Types: Conference paper
ORCIDs: Woyessa, Getinet , Fasano, Andrea , Markos, Christos , Rasmussen, Henrik K. and Bang, Ole
Keywords

Annealing Fibre Bragg grating Fibre optic sensor Humidity sensor Polymer optical fibre

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