Acta Photonica Sinica, Volume. 40, Issue 12, 1870(2011)
An Intelligent Temperature Compensating Circuit for Distributed Optical Fiber Raman Temperature Sensor
An intelligent temperature compensating circuit is used to compensate the avalanche photodiode reverse bias voltage for offsetting the impact of environmental temperature on the avalanche photodiode, thus reducing the temperature drift of the system.Using this technology, the system measurement error caused by ambient temperature drift can be controlled within ±0.1℃ from 0℃ to 60℃.Compared with traditional constant temperature devices, using temperature compensating circuit can effectively reduce system power consumption and cost.This circuit has better temperature compensation linear, and is more flexible for compensation coefficient setting than the circuit using thermistor.
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YU Xiang-dong, ZHANG Zai-xuan, ZHU Hai-zhong, JIN Shang-zhong, LIU Hong-lin, WANG Jian-feng. An Intelligent Temperature Compensating Circuit for Distributed Optical Fiber Raman Temperature Sensor[J]. Acta Photonica Sinica, 2011, 40(12): 1870
Received: Jul. 10, 2011
Accepted: --
Published Online: Jan. 4, 2012
The Author Email: Xiang-dong YU (yuxd@cjlu.edu.cn)