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

Date published

2014-06-02

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Society of Photo-optical Instrumentation Engineers

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Conference paper

ISSN

0277-786X

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Citation

Zhang W, Webb DJ, Carpenter M, Williams C, Measuring water activity of aviation fuel using a polymer optical fiber Bragg grating, José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José L. Santos, 23rd International Conference on Optical Fibre Sensors, Santander, Spain, June 02, 2014, Proceedings SPIE 9157.

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

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Github

Keywords

Polymer optical fiber,, PMMA, fiber Bragg grating, water activity, equilibrium relative humidity

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Copyright 2014 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited

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