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Optical Engineering

Liquid-level sensor using a fiber Bragg grating and carbon fiber composite diaphragm
Author(s): Dongcao Song; Jilin Zou; Zhanxiong Wei; Zubin Chen; Hongliang Cui
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Paper Abstract

A novel liquid-level sensor based on a fiber Bragg grating and carbon fiber composite diaphragm is proposed and demonstrated. The sensing principle and finite element analysis result are described. Because the carbon fiber composite diaphragm's thickness is 0.2 mm and thinner than that of other materials, the sensitivity of the liquid-level sensor is improved. The experimental results show that sensitivity can reach 0.185 nm/m of water height. Based on the high sensitivity and the simple structure of the sensor, this sensor can find applications in the area of liquid level sensing.

Paper Details

Date Published: 1 January 2011
PDF: 5 pages
Opt. Eng. 50(1) 014401 doi: 10.1117/1.3525286
Published in: Optical Engineering Volume 50, Issue 1
Show Author Affiliations
Dongcao Song, L.C. Pegasus Corp. (United States)
Jilin Zou, L.C. Pegasus Corp. (United States)
Zhanxiong Wei, Stevens Institute of Technology (United States)
Zubin Chen, Jilin Univ. (China)
Hongliang Cui, L.C. Pegasus Corp. (United States)

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