Liquid-level sensor using a fiber Bragg grating and carbon fiber composite diaphragm

Dongcao Song; Jilin Zou; Zhanxiong Wei; Zubin Chen; Hongliang Cui

doi:10.1117/1.3525286

1 January 2011 Liquid-level sensor using a fiber Bragg grating and carbon fiber composite diaphragm

Dongcao Song, Jilin Zou, Zhanxiong Wei, Zubin Chen, Hongliang Cui

Author Affiliations +

Optical Engineering, Vol. 50, Issue 1, 014401 (January 2011). https://doi.org/10.1117/1.3525286

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.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Dongcao Song, Jilin Zou, Zhanxiong Wei, Zubin Chen, and Hongliang Cui "Liquid-level sensor using a fiber Bragg grating and carbon fiber composite diaphragm," Optical Engineering 50(1), 014401 (1 January 2011). https://doi.org/10.1117/1.3525286

Published: 1 January 2011

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