摘要
分布式光纤拉曼温度传感(DTS)系统是一套基于光纤中的拉曼散射效应来实现分布式温度监控的系统,利用光纤中拉曼散射光的强度与光纤的温度状态有关的原理对温度进行实时监测。设计了一套9km的光纤拉曼测温系统,利用数据采集卡对斯托克斯和反斯托克斯光进行采集,在电脑端对温度进行累加平均处理,将微弱的信号从系统的噪声中提取出来,提高其信噪比。在累加平均16 000次的情况下测温精度达到了±2℃。
Distributed optical fiber Raman temperature sensor（DTS）system is a set of measuring principle of Raman scattering light in optical fiber,based on the distributed temperature monitoring system,which uses Raman scattering light in optical fiber temperature and fiber strength state related principle for real-time monitoring of temperature.A set of 9 km optical fiber Raman temperature measurement system was designed,the Stokes and the anti-Stokes light was collected by data acquisition card,the temperature was accumulated and averaged at the computer terminal,and the weak signal was extracted from the system noise to increase its signal-tonoise ratio.With accumulative average of 16 000 times,the accuracy of temperature measurement can reach to±2℃.
作者
陈瑞麟
万生鹏
贾鹏
唐晨飞
Chen Ruilin;Wan Shengpeng;Jia Peng;Tang Chenfei(Jiangxi Engineering Laboratory for Optoelectronics Testing Technology,Nanchang HangkongUniversity,Nanchang 330063,Chin)
出处
《应用光学》
CAS
CSCD
北大核心
2018年第4期590-594,共5页
Journal of Applied Optics
基金
国家自然科学基金(61465009)
江西省学科带头人计划(20172BCB22012)
南昌航空大学研究生创新专项基金(YC2016017)
关键词
数据采集
DTS
温度监测
累加平均
data acquisition
DTS
temperature monitoring
cumulative average
