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Proceedings Paper

Improved time response for polymer fibre Bragg grating based humidity sensors
Author(s): W. Zhang; D. J. Webb; G.-D. Peng
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Paper Abstract

In this work we experimentally investigate the response time of humidity sensors based on polymer optical fibre (POF) Bragg gratings. By the use of etching with acetone we can control the diameter of POF based on poly (methyl methacrylate) in order to reduce the diffusion time of water into the polymer and hence speed up the relative wavelength change caused by humidity variations. A much improved response time of 11 minutes has been achieved by using a POF FBG with a reduced diameter of 135 microns.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77533M (17 May 2011); doi: 10.1117/12.885936
Show Author Affiliations
W. Zhang, Aston Univ. (United Kingdom)
D. J. Webb, Aston Univ. (United Kingdom)
G.-D. Peng, The Univ. of New South Wales (Australia)

Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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