DTS分布式光纤测温系统

DTS Distributed FiberOptic Temperature Monitoring System

分布式光纤测温系统DTS2000是国际上最先进的线型感温火灾探测器，它直接利用光纤作为传感器，通过光纤微弱背向拉曼散射信号的滤波、探测以及高速数据采集与分析，获得温度敏感的 anti-stokes(反斯托克斯)信号和温度不敏感的 stokes(斯托克斯)信号，从而实时获得沿光纤分布的准确温度信息,最大测量距离20km、测量精度0.5℃、测量时间最小 2s;结合先进的火灾智能报警判断算法实现传感光纤全程的实时在线监测，并实领域具有广泛应用。现温度异常位置的精确定位。分布式光纤测温系统DTS2000 在电力、电厂、交通、大坝、石化、煤矿等领域具有广泛应用。

Distributed optical fiber temperature measurement system DTS2000 is the most advanced linear temperature-sensitive fire detector in the world. It directly uses optical fiber as a sensor, and obtains temperature-sensitive anti-stokes signals and temperature-insensitive stokes signals through filtering, detection, and high-speed data acquisition and analysis of weak back Raman scattering signals of the optical fiber. , so as to obtain accurate temperature information distributed along the optical fiber in real time. The maximum measurement distance is 20km, the measurement accuracy is 0.5℃, and the minimum measurement time is 2s; combined with advanced fire intelligent alarm judgment algorithm, real-time online monitoring of the entire sensing optical fiber is realized, and the field has a wide range of applications. Precise positioning of current temperature anomalies. Distributed optical fiber temperature measurement system DTS2000 is widely used in power, power plants, transportation, dams, petrochemicals, coal mines and other fields.

产品特点

·测量距离长:最长支持 20km

·测量精度高:最小0.5℃

·测量时间快:最快 2s/通道

·空间分辨率高:最小0.5

·测量通道多:一台主机最多支持16通道测

·量底层 ARM计算分析，可靠性高，具有自诊断功能，快速定位故障

Product Features

·Long measurement distance: up to 20km

·High measurement accuracy: minimum 0.5℃

·Fast measurement time: up to 2s/channel

·High spatial resolution: minimum 0.5

·Multiple measurement channels: one host supports up to 16 channels

·The measurement bottom layer ARM calculates and analyzes, with high reliability and self-diagnosis function, and quickly locates faults.

工作原理：

分布式光纤测温系统 DTS2000 同时实现温度测量和空间定位功能，其中温度测量利用光纤自发拉曼 Raman 散射效应，空间定位则利用光时域反射 OTDR技术。高速窄脉宽半导体激光脉冲耦合进入传感光纤中，通过光纤微弱背向散射信号的滤波、探测以及高速数据采集与分析，获得温度敏感的 anti-stokes(反斯托克斯)信号和温度不敏感的 stokes(斯托克斯)信号，从而实时获得沿光纤分布的准确温度信息;结合先进的火灾智能报警判断算法,实现传感光纤全程的实时在线监测。

Working Principle:

The distributed optical fiber temperature measurement system DTS2000 simultaneously realizes temperature measurement and spatial positioning functions. The temperature measurement utilizes the Raman scattering effect of the optical fiber, and the spatial positioning utilizes the optical time domain reflection OTDR technology. High-speed narrow pulse width semiconductor laser pulses are coupled into the sensing fiber, and the temperature-sensitive anti-stokes signal and the temperature-insensitive stokes signal are obtained through filtering, detection, and high-speed data acquisition and analysis of the weak backscattered signal of the optical fiber, so as to obtain accurate temperature information distributed along the optical fiber in real time; combined with advanced fire intelligent alarm judgment algorithm, Real-time online monitoring of the entire sensing fiber is realized.