10 km Distributed optical fiber sensors system and application

被引：3

作者：

Zhang, ZX ^{[1
]}

Kim, ISS ^{[1
]}

Wang, JF ^{[1
]}

Feng, HQ ^{[1
]}

Guo, N ^{[1
]}

Yu, XD ^{[1
]}

Liu, HL ^{[1
]}

Wu, XB ^{[1
]}

Oh, SK ^{[1
]}

Kim, YH ^{[1
]}

机构：

[1] China Inst Metrol, Inst Optoelectron Technol, Hangzhou 310034, Peoples R China

来源：

SENSORS, SYSTEMS AND NEXT-GENERATION SATELLITES V | 2001年 / 4540卷

关键词：

distributed optical fiber sensor; Rayleigh scattering; Raman scattering; OTDR;

D O I：

10.1117/12.450680

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

This paper briefly introduces the operation principle and configuration of distributed optical fiber sensor (DOFS) system. A new demodulation method that uses Rayleigh back scattering photon flux to demodulate Raman back scattering photon flux is put forward, and the advantages of this new method are discussed. Methods to measure temperature, strain and pressure at the same time are researched. The performance of DOFS is following: fiber length : 10.2km; temperature uncertainty: +/-2 degreesC: temperature resolution: 0.1degreesC; spatial resolution: 4m: measurement time: 5min; Main unit operation temperature range: 0-40degreesC. The DOFS system have been applied to coal mine.

引用

页码：386 / 390

页数：5

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