【摘要】 在分布式光纤喇曼温度传感器中,将测量温度范围分成正交的数个区域,用传统解调方法获取待测温度后,判断该温度属于某区域内;用该区域上下边界解调,得两测量温度,取平均值作为测量值。该方法提高了传感器的测量精度和稳定性。实验结果与理论分析一致,传感器的测温误差在±0.05℃内。更多还原

【Abstract】 In the distributed fiber Raman temperature sensor,a measured range of temperature would be divided in several orthogonal regions.A value of temperature would be obtained by tradition demodulation method,and the up and down boundary temperature of the region are taken as a parameter to demodulate,so a couple of measured temperature will be obtained,and the average value will be regarded as the final measured temperature,and testing precision is better than 0.05 ℃.更多还原