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Proceedings Paper

Multi-parameter measurements using optical fibre long period gratings for indoor air quality monitoring
Author(s): J. Hromadka; S. Korposh; M. C. Partridge; S. James; F. Davis; D. Crump; S.-W. Lee; R. P. Tatam
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Paper Abstract

An array of three long period gratings (LPGs) fabricated in a single optical fibre and multiplexed in the wavelength domain was used to measure simultaneously temperature, relative humidity (RH) and volatile organic compounds (VOCs). Each LPG sensor was designed to optimize its response to a desired measurand. The LPGs were fabricated with periods such that they operated at or near the phase matching turning point. The sensors were calibrated in the laboratory and the simultaneous measurement of the key indoor air quality parameters was undertaken in laboratory and office environments. It was demonstrated successfully that the data produced by the LPG sensor array under real conditions was in a good agreement with that produced by commercially available sensors. Further, the potential application of fibre optic sensors for VOCs detection at high levels has been demonstrated.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103233J (23 April 2017); doi: 10.1117/12.2265055
Show Author Affiliations
J. Hromadka, The Univ. of Nottingham (United Kingdom)
Charles Univ. in Prague (Czech Republic)
S. Korposh, The Univ. of Nottingham (United Kingdom)
Cranfield Univ. (United Kingdom)
M. C. Partridge, Cranfield Univ. (United Kingdom)
S. James, Cranfield Univ. (United Kingdom)
F. Davis, Cranfield Univ. (United Kingdom)
D. Crump, Univ. of Kitakyushu (Japan)
S.-W. Lee, Univ. of Kitakyushu (Japan)
R. P. Tatam, Cranfield Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)

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