Performance Analysis of Temperature and Strain Simultaneous Measurement System Based on Heterodyne Detection of Brillouin Scattering

被引：1

作者：

J.-S. Zhang

机构：

来源：

Journal of Electronic Science and Technology | 2008年 / 6卷 / 04期

关键词：

Brillouin scattering; heterodyne detection; strain; temperature;

D O I：

暂无

中图分类号：

TP274 [数据处理、数据处理系统];

学科分类号：

0804 ; 080401 ; 080402 ; 081002 ; 0835 ;

摘要：

Microwave heterodyne detection can be used to measure the temperature and strain distribution along a fiber with high accuracy in a Brillouin optical time domain reflectometry (BOTDR) system. This method involves simultaneous measurement of Brillouin scattering and Rayleigh scattering in fiber, and scanning of Brillouin spectrum to obtain the desired information. This paper presents a simultaneous measurement system of temperature and strain based on microwave detection and analyzed the system performances such as measurement accuracy, dynamic range, and spatial resolution theoretically. The analysis shows that the system can achieve a temperature resolution of 1°C and a strain resolution of 100 με.

引用

页码：381 / 384

页数：4

共 7 条

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