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Proceedings Paper

Simultaneous measurement of liquid level and temperature employing a single uniform FBG
Author(s): Xuewen Shu; Kate Sugden; Ian Bennion
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Paper 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.

Paper Details

Date Published: 5 October 2009
PDF: 4 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75032S (5 October 2009);
Show Author Affiliations
Xuewen Shu, Aston Univ. (United Kingdom)
Kate Sugden, Aston Univ. (United Kingdom)
Ian Bennion, Aston Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 7503:
20th International Conference on Optical Fibre Sensors
Julian D. C. Jones, Editor(s)

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