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Proceedings Paper

A discrete liquid level sensor based on fiber Bragg grating
Author(s): Dongcao Song; Jilin Zou; David Low; Josephine Armando; Tom Koscika; Hongliang Cui
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Paper Abstract

A discrete liquid level sensor based on fiber Bragg grating (FBG) that is suitable for liquid level monitoring is proposed. FBG (fiber Bragg grating) is embedded in a cantilever beam which is made of carbon fiber composite. And an iron sheet is bonded with the end of cantilever beam. For the float, a magnet is bonded with the float. When the liquid level rises or fall, the float will move up or down. The cantilever beam will bend downward or upward, it will induce strain on the FBG. Therefore, the Bragg wavelength of FBG will shift. An extra reference grating was utilized for temperature compensation.

Paper Details

Date Published: 2 June 2011
PDF: 5 pages
Proc. SPIE 8028, Fiber Optic Sensors and Applications VIII, 80280H (2 June 2011); doi: 10.1117/12.883049
Show Author Affiliations
Dongcao Song, L.C. Pegasus Corp. (United States)
Jilin Zou, L.C. Pegasus Corp. (United States)
David Low, Con Edison (United States)
Josephine Armando, Con Edison (United States)
Tom Koscika, L.C. Pegasus Corp. (United States)
Hongliang Cui, L.C. Pegasus Corp. (United States)

Published in SPIE Proceedings Vol. 8028:
Fiber Optic Sensors and Applications VIII
Stephen J. Mihailov; Henry H. Du; Gary Pickrell, Editor(s)

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