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 : Distribu ted op tical fiber temperature sensing is a newly developed technique f orthe measurement of spatial temperature distribu2 tion. It canbe used to monitor temperature along an optical fiber of some kilomete rs. 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