Title :
Distributed dynamic-strain sensing based on brillouin optical correlation domain analysis
Author :
Zou, Weiwen ; He, Zuyuan ; Hotate, Kazuo
Author_Institution :
Dept. of Electr. Eng. & Inf. Syst., Univ. of Tokyo, Tokyo, Japan
Abstract :
We study the influence of the integral time constant of signal processing in a modified Brillouin optical correlation domain analysis system to the interrogated strain. The synchronization control of the microwave synthesizer, the function generator and data acquisition enables 5-Hz entire distributed sensing with a capability of detecting 2-Hz distributed dynamic strain.
Keywords :
distributed sensors; fibre optic sensors; function generators; microwave generation; optical correlation; stimulated Brillouin scattering; strain sensors; Brillouin optical correlation domain analysis; data acquisition; distributed dynamic strain sensing; fiber optic sensors; frequency 2 Hz; frequency 5 Hz; function generator; integral time constant; microwave synthesizer; signal processing; synchronization control; Capacitive sensors; Data acquisition; Frequency modulation; High speed optical techniques; Optical pumping; Optical refraction; Optical scattering; Optical sensors; Optical signal processing; Optical variables control; Fiber optics sensors; dynamic strain; stimulated Brillouin scattering;
Conference_Titel :
Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics, 2009. CLEO/PACIFIC RIM '09. Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-3829-7
Electronic_ISBN :
978-1-4244-3830-3
DOI :
10.1109/CLEOPR.2009.5292335
