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

被引:27
作者
Song, Dongcao [3 ]
Zou, Jilin [4 ]
Wei, Zhanxiong [1 ]
Chen, Zubin [2 ]
Cui, Hongliang
机构
[1] Stevens Inst Technol, Dept Phys & Engn Phys, Hoboken, NJ 07030 USA
[2] Jilin Univ, Coll Instrumentat Sci & Elect Engn, Changchun 130026, Peoples R China
[3] YanTai Univ, Yantai, Peoples R China
[4] Dong Fang Elect Ltd, Chengdu, Peoples R China
关键词
liquid-level sensor; fiber Bragg grating; carbon fiber composite diaphragm;
D O I
10.1117/1.3525286
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
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. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3525286]
引用
收藏
页数:5
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