Aviation Fuel Gauging Sensor Utilizing Multiple Diaphragm Sensors Incorporating Polymer Optical Fiber Bragg Gratings

C. A. F. Marques, A. Pospori, D. Saez-Rodriguez, Kristian Nielsen, Ole Bang, D. J. Webb

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    A high-performance fuel gauging sensor is described that uses five diaphragm-based pressure sensors, which are monitored using a linear array of polymer optical fiber Bragg gratings. The sensors were initially characterized using water, revealing a sensitivity of 98 pm/cm for four of the sensors and 86 pm/cm for the fifth. The discrepancy in the sensitivity of the fifth sensor has been explained as being a result of the annealing of the other four sensors. Initial testing in JET A-1 aviation fuel revealed the unsuitability of silicone rubber diaphragms for prolonged usage in fuel. A second set of sensors manufactured with a polyurethane-based diaphragm showed no measurable deterioration over a three month period immersed in fuel. These sensors exhibited a sensitivity of 39 pm/cm, which is less than the silicone rubber devices due to the stiffer nature of the polyurethane material used.
    Original languageEnglish
    JournalI E E E Sensors Journal
    Issue number15
    Pages (from-to)6122-6129
    Publication statusPublished - 2016


    • PHYSICS,
    • CORE
    • Fiber Bragg gratings
    • polymer optical fiber sensors
    • pressure sensors
    • fuel level monitoring
    • aircraft applications
    • Electrical and Electronic Engineering
    • Instrumentation
    • Bragg gratings
    • Elastomers
    • Fibers
    • Fuels
    • Optical fibers
    • Plastic optical fibers
    • Polymers
    • Polyurethanes
    • Pressure sensors
    • Rubber
    • Rubber testing
    • Silicones
    • Aircraft applications
    • Aviation fuel
    • Fuel gauging
    • Fuel levels
    • Jet A-1
    • Linear arrays
    • Polyurethane materials
    • Silicone rubber
    • Diaphragms
    • silicone rubber
    • aircraft
    • diaphragms
    • fibre optic sensors
    • fuel
    • level measurement
    • pressure gauges
    • polyurethane-based diaphragm
    • aviation fuel gauging sensor
    • multiple diaphragm sensors
    • polymer optical fiber Bragg gratings
    • diaphragm-based pressure sensors
    • linear array
    • water
    • annealing
    • JET A-1 aviation fuel
    • silicone rubber diaphragms
    • Optical fiber sensors
    • Sensitivity
    • Liquids
    • Fibre optic sensors; fibre gyros
    • Pressure measurement
    • Gratings, echelles
    • Spatial variables measurement
    • Fibre optic sensors
    • Pressure and vacuum measurement
    • Level, flow and volume measurement
    • Measurement
    • Fuel processing industry
    • Aerospace industry


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