采用智能温度补偿电路的分布式光纤喇曼温度传感器  

An Intelligent Temperature Compensating Circuit for Distributed Optical Fiber Raman Temperature Sensor

作　　者：余向东[1] 张在宣[1] 祝海忠 金尚忠[1] 刘红林[1] 王剑锋[1] 

机构地区：[1]中国计量学院光电子技术研究所,杭州310018 [2]杭州欧忆光电科技有限公司,杭州310018

出　　处：《光子学报》2011年第12期1870-1874,共5页Acta Photonica Sinica

基　　金：国家重点基础研究发展计划(No.2010CB327804);浙江省重大科技专项(No.2009C11049)资助

摘　　要：采用一种智能温度补偿电路对雪崩光电二极管的反偏电压进行温度补偿,抵消环境温度对雪崩光电二极管的影响,从而大大降低了系统的温度漂移.采用该温度补偿电路的系统可在0℃到60℃的环境温度范围内将温漂引起的测量偏差控制在±0.1℃之内.和传统的恒温装置相比,采用该温度补偿电路可有效地降低系统的功耗和成本.相对采用热敏电阻的温度补偿电路,该温度补偿电路的温度补偿线性更好,补偿系数设置更灵活.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.

关 键 词：传感器 分布式光纤喇曼温度传感器 温度补偿 温度漂移 

分 类 号：TN253[电子电信—物理电子学] O437.3[机械工程—光学工程]