10 January 1997 260 degree C distributed optical fiber temperature sensor and its optimization design
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Abstract
The paper presents theoretical and experimental investigations on distributed anti-Stokes ratio thermometry (DART) sensing for monitoring temperature in complicated structure. A technique, based on maximizing signal to noise ratio (SNR) of DART, has been proposed. A preliminary prototype DART system based on a microcomputer has been developed and optimized by this technique. It has spatial resolution of 15.6 m (limited by pulse width of the laser), measuring time of 160 s, temperature resolution of 7 degrees Celsius, sensing upper limit of 260 degrees Celsius, and sensing distance of 1.5 km.
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Hongzhi Zhao, Hongzhi Zhao, Naiji Li, Naiji Li, Dazun Zhao, Dazun Zhao, } "260 degree C distributed optical fiber temperature sensor and its optimization design", Proc. SPIE 3000, Laser Diode and LED Applications III, (10 January 1997); doi: 10.1117/12.263498; https://doi.org/10.1117/12.263498
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