分布式光纤温度传感检测技术及其应用

分布式光纤温度传感是一种用于实时测量空间温度场分布的新技术, 对光纤沿线地点的温度进行分布连续检测, 光纤本身就是温度传感器。由于光纤传感的本征特点, 该技术特别适合应用于电气设备的温度检测,并能和消防报警系统配合使用, 在发电厂、变电站的电气设备状态检测中有广阔的应用前景。
关键词: 光纤; 激光; 温度检测; 电气设备
Abstract : Distributed optical fiber temperature sensing is a newly developed technique for the measurement of spatial temperature distribu2 tion. It can be used to monitor temperature along an optical fiber of some kilometers . The optical fiber itself is both the sensing elements and the signal transmission medium. Because of its intrinsic advantages , this technique is especially suitable for the temperature monitoring of electrical power facilities . When combined with other fire protection techniques , distributed optical fiber temperature sensor system should be widely used in the state monitoring of electrical facilities in electrical power plants , substations and so forth.
Key words : fiber ; laser ; temperature monitoring ; electrical facilities