Aviation fuel gauging sensor utilizing multiple diaphragm sensors incorporating polymer optical fiber Bragg gratings

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

Research output: Contribution to journalArticlepeer-review


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
Pages (from-to)6122-6129
Number of pages8
JournalIEEE Sensors Journal
Issue number15
Early online date7 Jun 2016
Publication statusPublished - 1 Aug 2016

Bibliographical note

© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.


  • aircraft applications
  • fiber Bragg gratings
  • fuel level monitoring
  • polymer optical fiber sensors
  • pressure sensors


Dive into the research topics of 'Aviation fuel gauging sensor utilizing multiple diaphragm sensors incorporating polymer optical fiber Bragg gratings'. Together they form a unique fingerprint.

Cite this