Influence of Temperature Gradient on Measurement Accuracy of BOTDR System

Author

Shang, Qiu-Feng ; Liu, Jing ; Li, Yong-Qian

Author_Institution

North China Electr. Power Univ., Baoding

fYear

2009

fDate

23-24 May 2009

Firstpage

1

Lastpage

4

Abstract

Brllouin optical time domain reflectometry is one of the popular methods of Brillouin distributed fiber sensing measurement. The spatial resolution of BOTDR system could reach meter order. For many applications, the temperature distribution of object is not a constant in the spatial resolution, and temperature gradient exists inside the scope. The relationship between Brillouin backscattering spectrum with temperature gradient is analyzed, and the error of temperature determination caused by the temperature gradient is investigated.

Keywords

Brillouin spectra; distributed sensors; fibre optic sensors; gradient methods; optical time-domain reflectometry; temperature distribution; BOTDR system; Brillouin backscattering spectrum; Brillouin distributed fiber sensing measurement; Brllouin optical time domain reflectometry; measurement accuracy; spatial resolution; temperature determination; temperature distribution; temperature gradient; Brillouin scattering; Frequency; Optical fibers; Optical scattering; Optical sensors; Power measurement; Spatial resolution; Temperature measurement; Temperature sensors; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Systems and Applications, 2009. ISA 2009. International Workshop on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-3893-8

Electronic_ISBN

978-1-4244-3894-5

Type

conf

DOI

10.1109/IWISA.2009.5072913

Filename

5072913