Measuring water activity of aviation fuel using a polymer optical fiber Bragg grating

Wei Zhang; David J. Webb; Mark Carpenter; Colleen Williams

doi:10.1117/12.2059273

2 June 2014 Measuring water activity of aviation fuel using a polymer optical fiber Bragg grating

Wei Zhang, David J. Webb, Mark Carpenter, Colleen Williams

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91574V (2014) https://doi.org/10.1117/12.2059273
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

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.

Citation Download Citation

Wei Zhang, David J. Webb, Mark Carpenter, and Colleen Williams "Measuring water activity of aviation fuel using a polymer optical fiber Bragg grating", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91574V (2 June 2014); https://doi.org/10.1117/12.2059273

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