Fiber optic sensor system for simultaneous measurement of different environmental parameters

Liqiu Men; Ping Lu; Qiying Chen

doi:10.1117/12.850554

24 April 2010 Fiber optic sensor system for simultaneous measurement of different environmental parameters

Liqiu Men, Ping Lu, Qiying Chen

Proceedings Volume 7673, Advanced Environmental, Chemical, and Biological Sensing Technologies VII; 76730Y (2010) https://doi.org/10.1117/12.850554
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

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).

Citation Download Citation

Liqiu Men, Ping Lu, and 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); https://doi.org/10.1117/12.850554

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