Simultaneous measurement of liquid level and temperature employing a single uniform FBG

Xuewen Shu*, Kate Sugden, Ian Bennion

*Corresponding author for this work

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

Abstract

We report a novel liquid level sensor based on a simple uniform fiber Bragg grating by monitoring both the short-wavelength-loss peaks and its Bragg resonance. The liquid level can be measured from the amplitude changes of the short-wavelength-loss peaks, while temperature can be measured from the wavelength shift of the Bragg resonance. Such a scheme has some advantages including robustness, simplicity, flexibility in choosing sensitivity, and simultaneous temperature measurement capability.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSPIE
Volume7503
ISBN (Print)9780819478146
DOIs
Publication statusPublished - 17 Nov 2009
Event20th International Conference on Optical Fibre Sensors - Edinburgh, United Kingdom
Duration: 5 Oct 20099 Oct 2009

Conference

Conference20th International Conference on Optical Fibre Sensors
CountryUnited Kingdom
CityEdinburgh
Period5/10/099/10/09
OtherThe International Conference on ‘Optical Fibre Sensors’ is acknowledged as the world’s leading conference on all topics related to fibre-optic, guided-wave and optical sensing devices, systems, theories and techniques for research and applications.

Fingerprint

liquid levels
Liquid
Wavelength
Liquids
wavelengths
Temperature Measurement
Fiber Grating
Fiber Bragg gratings
Bragg Grating
Temperature measurement
Temperature
Bragg gratings
temperature
temperature measurement
Simplicity
flexibility
Flexibility
Monitoring
Robustness
Sensor

Bibliographical note

Copyright 2009 SPIE. One print or electronic copy may be made for personal use only. Systematic reproduction, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Keywords

  • Fiber Bragg gratings
  • Fiber optics sensors
  • Liquid-level sensor

Cite this

Shu, X., Sugden, K., & Bennion, I. (2009). Simultaneous measurement of liquid level and temperature employing a single uniform FBG. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 7503). [75032S] SPIE. https://doi.org/10.1117/12.833528
Shu, Xuewen ; Sugden, Kate ; Bennion, Ian. / Simultaneous measurement of liquid level and temperature employing a single uniform FBG. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7503 SPIE, 2009.
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Shu, X, Sugden, K & Bennion, I 2009, Simultaneous measurement of liquid level and temperature employing a single uniform FBG. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 7503, 75032S, SPIE, 20th International Conference on Optical Fibre Sensors, Edinburgh, United Kingdom, 5/10/09. https://doi.org/10.1117/12.833528

Simultaneous measurement of liquid level and temperature employing a single uniform FBG. / Shu, Xuewen; Sugden, Kate; Bennion, Ian.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7503 SPIE, 2009. 75032S.

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

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Shu X, Sugden K, Bennion I. Simultaneous measurement of liquid level and temperature employing a single uniform FBG. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7503. SPIE. 2009. 75032S https://doi.org/10.1117/12.833528