Fuel level sensor based on polymer optical fiber Bragg gratings for aircraft applications

C.A.F. Marques, A. Pospori, D. Sáez-Rodríguez, K. Nielsen, O. Bang, D.J. Webb

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Safety in civil aviation is increasingly important due to the increase in flight routes and their more challenging nature. Like other important systems in aircraft, fuel level monitoring is always a technical challenge. The most frequently used level sensors in aircraft fuel systems are based on capacitive, ultrasonic and electric techniques, however they suffer from intrinsic safety concerns in explosive environments combined with issues relating to reliability and maintainability. In the last few years, optical fiber liquid level sensors (OFLLSs) have been reported to be safe and reliable and present many advantages for aircraft fuel measurement. Different OFLLSs have been developed, such as the pressure type, float type, optical radar type, TIR type and side-leaking type. Amongst these, many types of OFLLSs based on fiber gratings have been demonstrated. However, these sensors have not been commercialized because they exhibit some drawbacks: low sensitivity, limited range, long-term instability, or limited resolution. In addition, any sensors that involve direct interaction of the optical field with the fuel (either by launching light into the fuel tank or via the evanescent field of a fiber-guided mode) must be able to cope with the potential build up of contamination-often bacterial-on the optical surface. In this paper, a fuel level sensor based on microstructured polymer optical fiber Bragg gratings (mPOFBGs), including poly (methyl methacrylate) (PMMA) and TOPAS fibers, embedded in diaphragms is investigated in detail. The mPOFBGs are embedded in two different types of diaphragms and their performance is investigated with aviation fuel for the first time, in contrast to our previous works, where water was used. Our new system exhibits a high performance when compared with other previously published in the literature, making it a potentially useful tool for aircraft fuel monitoring.

Original languageEnglish
Title of host publicationMicro-Structured and Specialty Optical Fibres IV
EditorsKyriacos Kalli, Alexis Mendez
Place of PublicationBellingham, WA (US)
PublisherSPIE
Number of pages8
ISBN (Print)978-1-5106-0131-4
DOIs
Publication statusPublished - 27 Apr 2016
EventMicro-Structured and Specialty Optical Fibres IV - Brussels, Belgium
Duration: 4 Apr 20166 Apr 2016

Publication series

NameSPIE Proceedings
PublisherSPIE
Volume9886
ISSN (Print)0277-786X
ISSN (Electronic)2410-9045

Conference

ConferenceMicro-Structured and Specialty Optical Fibres IV
CountryBelgium
CityBrussels
Period4/04/166/04/16

Fingerprint

Polymer Optical Fiber
Plastic optical fibers
Fiber Grating
Fiber Bragg gratings
Bragg Grating
Bragg gratings
aircraft
Aircraft
Aircraft fuels
optical fibers
aircraft fuels
Sensor
liquid levels
sensors
Sensors
polymers
Optical fibers
Optical Fiber
diaphragms
Diaphragms

Bibliographical note

-C.A.F. Marques; A. Pospori; D. Sáez-Rodríguez; K. Nielsen; O. Bang and D.J. Webb; "Fuel level sensor based on polymer optical fiber Bragg gratings for aircraft applications", Proc. SPIE 9886, Micro-Structured and Specialty Optical Fibres IV, 98860W (April 27, 2016).

Copyright 2016. Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print 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.

DOI: http://dx.doi.org/10.1117/12.2225918

Keywords

  • aircraft applications
  • Bragg gratings
  • diaphragms
  • fuel level sensors
  • polymer optical fiber sensors

Cite this

Marques, C. A. F., Pospori, A., Sáez-Rodríguez, D., Nielsen, K., Bang, O., & Webb, D. J. (2016). Fuel level sensor based on polymer optical fiber Bragg gratings for aircraft applications. In K. Kalli, & A. Mendez (Eds.), Micro-Structured and Specialty Optical Fibres IV [98860W] (SPIE Proceedings; Vol. 9886). Bellingham, WA (US): SPIE. https://doi.org/10.1117/12.2225918
Marques, C.A.F. ; Pospori, A. ; Sáez-Rodríguez, D. ; Nielsen, K. ; Bang, O. ; Webb, D.J. / Fuel level sensor based on polymer optical fiber Bragg gratings for aircraft applications. Micro-Structured and Specialty Optical Fibres IV. editor / Kyriacos Kalli ; Alexis Mendez. Bellingham, WA (US) : SPIE, 2016. (SPIE Proceedings).
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Marques, CAF, Pospori, A, Sáez-Rodríguez, D, Nielsen, K, Bang, O & Webb, DJ 2016, Fuel level sensor based on polymer optical fiber Bragg gratings for aircraft applications. in K Kalli & A Mendez (eds), Micro-Structured and Specialty Optical Fibres IV., 98860W, SPIE Proceedings, vol. 9886, SPIE, Bellingham, WA (US), Micro-Structured and Specialty Optical Fibres IV, Brussels, Belgium, 4/04/16. https://doi.org/10.1117/12.2225918

Fuel level sensor based on polymer optical fiber Bragg gratings for aircraft applications. / Marques, C.A.F.; Pospori, A.; Sáez-Rodríguez, D.; Nielsen, K.; Bang, O.; Webb, D.J.

Micro-Structured and Specialty Optical Fibres IV. ed. / Kyriacos Kalli; Alexis Mendez. Bellingham, WA (US) : SPIE, 2016. 98860W (SPIE Proceedings; Vol. 9886).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Marques CAF, Pospori A, Sáez-Rodríguez D, Nielsen K, Bang O, Webb DJ. Fuel level sensor based on polymer optical fiber Bragg gratings for aircraft applications. In Kalli K, Mendez A, editors, Micro-Structured and Specialty Optical Fibres IV. Bellingham, WA (US): SPIE. 2016. 98860W. (SPIE Proceedings). https://doi.org/10.1117/12.2225918