Browsing by Author "Carpenter, Mark D."

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    Behaviour of Water in Aviation Fuels at Low Temperature
    (2011-12-07T00:00:00Z) Carpenter, Mark D.; Hetherington, Janice I.; Lao, Liyun; Ramshaw, C.; Yeung, Hoi; Lam, Joseph K.-W.; Masters, Simon; Barley, Sarah; Morris, R. E.
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    Measuring water activity of aviation fuel using a polymer optical fiber Bragg grating
    (Society of Photo-optical Instrumentation Engineers, 2014-06-02) Zhang, Wei; Webb, David J.; Carpenter, Mark D.; Williams, Colleen
    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