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Proceedings Paper

Measuring water activity of aviation fuel using a polymer optical fiber Bragg grating
Author(s): Wei Zhang; David J. Webb; Mark Carpenter; Colleen Williams
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Paper Abstract

Poly(methyl methacrylate) (PMMA) based polymer optical fiber Bragg gratings have been used for measuring water activity of aviation fuel. Jet A-1 samples with water content ranging from 100% ERH (wet fuel) to 10 ppm (dried fuel), have been conditioned and calibrated for measurement. The PMMA based optical fiber grating exhibits consistent response and a good sensitivity of 59±3pm/ppm (water content in mass). This water activity measurement allows PMMA based optical fiber gratings to detect very tiny amounts of water in fuels that have a low water saturation point, potentially giving early warning of unsafe operation of a fuel system.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91574V (2 June 2014); doi: 10.1117/12.2059273
Show Author Affiliations
Wei Zhang, Aston Univ. (United Kingdom)
David J. Webb, Aston Univ. (United Kingdom)
Mark Carpenter, Defence Academy of the United Kingdom (United Kingdom)
Colleen Williams, Defence Academy of the United Kingdom (United Kingdom)

Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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