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Proceedings Paper

Strain measurement using FBG Fabry-Perot sensor
Author(s): Li Liu; Zhaoxia Wu; Aijuan Song; Dongmei Yan
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Paper Abstract

A novel method for achieving high resolution for static strain measurement is proposed and demonstrated. This method is based on the combination of two fiber Bragg grating (FBG) and an all-fiber Fabry-Perot sensor (FFPI) formed by the two FBGs. The wavelength shift of the FBGs is used for determining the fringe number of the interferometic signal while the FFPI and the pseudo-heterodyne are used to carry out high-resolution measurement. The resolution for static strain by the actual measuring is 31nε.

Paper Details

Date Published: 9 October 2008
PDF: 6 pages
Proc. SPIE 7127, Seventh International Symposium on Instrumentation and Control Technology: Sensors and Instruments, Computer Simulation, and Artificial Intelligence, 712702 (9 October 2008); doi: 10.1117/12.806238
Show Author Affiliations
Li Liu, Northeastern Univ. (China)
Northeastern Univ. at Qinhuangdao (China)
Zhaoxia Wu, Northeastern Univ. at Qinhuangdao (China)
Aijuan Song, Northeastern Univ. at Qinhuangdao (China)
Dongmei Yan, Northeastern Univ. (China)
Northeastern Univ. at Qinhuangdao (China)


Published in SPIE Proceedings Vol. 7127:
Seventh International Symposium on Instrumentation and Control Technology: Sensors and Instruments, Computer Simulation, and Artificial Intelligence

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