摘要
论述了喇曼散射与布里渊散射光纤温度传感器的频域分析方法,该方法克服了传统时域法在信号检测中需要高速采样电路的缺点,为提高传感器空间分辨率开辟了新的途径,讨论了一种基于模耦合原理的高空间分辨率分布式温度传感器,并对喇曼散射、布里渊散射和模耦合效应三种传感器的特点进行了比较。
The principle of distributed optical-fiber temperature sensor, based on Raman scatter and Brillouin scatter , is discussed by this paper , which adopts the frequency analytical method. The analytical method can overcome the shortcoming of the traditional temporal analytical method, which needs high-speed sample circuit. Furthermore the analytical method has broke a new path to enhance the spatial resolution of sensors. At the same time , a high spatial resolution optical-fiber sensor based on model coupling is discussed by this paper. Finally the comparison of several optical-fiber sensors are presented.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
2003年第3期328-330,共3页
Journal of University of Electronic Science and Technology of China
基金
国防科研基金
关键词
分布式温度传感
喇曼散射
布里渊散射
模耦合
distributed temperature sensor
Raman scatter
Brillouin scatter
mode couping
