制冷型APD分布式拉曼光纤测温系统在厦门灌新路隧道中的应用  

The Application of Cooled-APD DTS in Guanxin Tunnel of Xiamen

作　　者：闫奇众[1] 夏润天 

机构地区：[1]武汉理工大学信息学院,武汉430074 [2]武汉市第三中学,武汉430062

出　　处：《交通科技》2016年第1期65-67,共3页Transportation Science & Technology

摘　　要：雪崩光电二极管(APD)的增益受温度影响严重。采用TEC制冷封装的APD很好地解决了温度对APD稳定工作的影响,避免了复杂的APD温度补偿工作。厦门灌新路隧道工程测试结果显示,在APD环境温度高达60℃情况下,能够满足温度精度±1℃的要求。该系统在隧道、地铁、电力等行业恶劣环境条件下具有良好的推广应用前景。The APD performance is seriously affected by temperature fluctuation.A new APD packaged with TEC presented in this work can solve this issue and avoids complex APD temperature-compensation circuit.The test in Guanxin tunnel of Xiamen has achieved±1℃temperature accuracy under the environment of 60℃.Practical applications proved that this system has good prospect of population and application in the tunnel,subway,and electric power harsh conditions.

关 键 词：分布式光纤拉曼温度传感 雪崩光电二极管(APD) 温度补偿 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]