Title :
Development and applications of the distributed temperature and strain sensors based on Brillouin scattering
Author :
Bao, Xiaoyi ; Zou, Lufan ; Yu, Qinrong ; Chen, Liang
Author_Institution :
Dept. of Phys., Ottawa Univ., Ont., Canada
Abstract :
An automated distributed sensor system based on Brillouin scattering has been developed for temperature and strain measurement. This system can provide centimetre spatial resolution for simultaneous temperature and strain sensing with strain accuracy of 10-30 με and temperature accuracy of 1-2°C using polarization maintained fibres (PMF) and photonic crystal fibres (PCF). We used this sensor to detect a 1.5 cm crack in an optical ground wire.
Keywords :
Brillouin spectra; crack detection; distributed sensors; fibre optic sensors; optical fibre polarisation; strain sensors; temperature sensors; Brillouin scattering; PCF; PMF; automated distributed sensor system; centimetre spatial resolution; crack detection; photonic crystal fibres; polarization maintained fibres; strain sensors; temperature sensors; Brillouin scattering; Capacitive sensors; Land surface temperature; Optical fiber polarization; Optical sensors; Sensor systems; Spatial resolution; Strain measurement; Temperature measurement; Temperature sensors;
Conference_Titel :
Sensors, 2004. Proceedings of IEEE
Print_ISBN :
0-7803-8692-2
DOI :
10.1109/ICSENS.2004.1426396
