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13 March 2015 A fuel level sensor for aeronautical applications
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Proceedings Volume 9369, Photonic Instrumentation Engineering II; 93690D (2015) https://doi.org/10.1117/12.2079962
Event: SPIE OPTO, 2015, San Francisco, California, United States
Abstract
A novel fuel level sensor for aeronautical applications is developed. The sensor is based on an array of total internal reflection (TIR) point sensors. Respect to conventional TIR sensors the new design permits to be sensitive to common jet fuels (JetA, JP4,JP7) but also to operate with new alternative fuels. The sensor doesn’t require aircraft calibration, temperature compensation and furthermore is able to operate correctly when partially or totally exposed to presence of condensed water on its surface. The point sensors are multiplexed on a single fiber by optical couplers and interrogated simultaneously by Optical Time Domain Reflectometry (OTDR) at a wavelength of 1550nm. Experimental results show a resolution of ±1.5mm could be achieved. The sensors is also able to measure the free water level in the fuel.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
L. Petrazzuoli, G. Persichetti, G. Onorato, I. A. Grimaldi, G. Testa, and R. Bernini "A fuel level sensor for aeronautical applications", Proc. SPIE 9369, Photonic Instrumentation Engineering II, 93690D (13 March 2015); https://doi.org/10.1117/12.2079962
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