Fiber-optic sensor system for simultaneous measurement of different environmental parameters

被引:1
|
作者
Men, Liqiu [1 ]
Lu, Ping [2 ]
Chen, Qiying [2 ]
机构
[1] Mem Univ Newfoundland, CREAIT Network, St John, NF A1C 5S7, Canada
[2] Mem Univ Newfoundland, Dept Phys & Phys Oceanography, St John, NF A1B 3X7, Canada
基金
加拿大自然科学与工程研究理事会; 加拿大创新基金会;
关键词
fiber optics; Bragg grating; sensor; salinity; saccharinity; temperature; REFRACTIVE-INDEX; ENHANCED SENSITIVITY; BRAGG; TEMPERATURE; GRATINGS; SALINITY; STRAIN;
D O I
10.1117/12.850554
中图分类号
TP7 [遥感技术];
学科分类号
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要
We report simultaneous salinity/saccharinity and temperature measurement with a fiber Bragg grating (FBG)-based sensor system. By adopting multiplexing technique, the sensor system consists of two FBG sensing elements in which one FBG is sensitive to salinity/saccharinity while the other one sensitive to temperature only. Experiments indicated that the salinity, saccharinity, and temperature sensitivities of the polyimide-coated grating were 0.0165 nm/M (blueshift), 0.0012 nm/Bx (blueshift), and 0.0094 nm/C (redshift), respectively. The temperature sensitivity of the acrylate-coated FBG was 0.0102 nm/C (redshift).
引用
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页数:6
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