24 April 2010 Fiber optic sensor system for simultaneous measurement of different environmental parameters
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Abstract
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).
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Liqiu Men, Liqiu Men, Ping Lu, Ping Lu, Qiying Chen, Qiying Chen, } "Fiber optic sensor system for simultaneous measurement of different environmental parameters", Proc. SPIE 7673, Advanced Environmental, Chemical, and Biological Sensing Technologies VII, 76730Y (24 April 2010); doi: 10.1117/12.850554; https://doi.org/10.1117/12.850554
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