光学学报, 1999, 19 (1): 100, 网络出版: 2006-08-09
分布型光纤拉曼光子温度传感器系统的测温精度
Temperature Measurement Accuracy of the Distributed Optical Fiber Raman Photons Temperature Sensor System
拉曼光子 分布光纤传感器 光时域反射技术 测温精度 Raman photon distributed optical fiber sensor OTDR technique measurement accuracy of temperature
摘要
在分布型光纤拉曼光子温度传感器(DOFRPTS)系统中, 自发拉曼光子是温度信息的载体, 在2 km光纤上实时采样1000个点, 用于空间温度场分布的测量。 系统采用拉曼光时域反射技术, 对所测点进行定位。 对分布光纤拉曼光子温度传感器系统的测温精度进行了讨论, 由系统的信噪比来确定测温精度, 提出了改善测温精度的方法, 实际系统的测温精度达±1℃。
Abstract
In the distributed optical fiber Raman photons temperature senser (DOFRPTS) system, spontaneous Raman photons are carriers of temperature signal. On the 2 km optical fiber, 1000 points have been sampled on time used for the measurement of temperature field in space. The position of measurement point was determined by Raman scattering optical time domain reflection (OTDR) technique. Signal and noise of the system have been discussed, the measured temperature accuracy of the DOFRPS system is ±1℃ determined by S/N ratio.
王玮, 周邦全, 张在宣, 吴孝彪, 郭宁, 余向东, 王其良. 分布型光纤拉曼光子温度传感器系统的测温精度[J]. 光学学报, 1999, 19(1): 100. 王玮, 周邦全, 张在宣, 吴孝彪, 郭宁, 余向东, 王其良. Temperature Measurement Accuracy of the Distributed Optical Fiber Raman Photons Temperature Sensor System[J]. Acta Optica Sinica, 1999, 19(1): 100.
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