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Proceedings Paper

High resolution static strain measurement using an in-fibre-Bragg-grating-based Fabry Perot sensor
Author(s): Y. J. Rao
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Paper Abstract

A novel method to achieve both large dynamic range and high resolution for static strain measurement is proposed and demonstrated. This method is based on the combination of two in fibre Bragg gratings (FBG) and an all-fibre Fabry-Perot interferometric sensor (FFPI) formed by the two FBGs. The FFPI is used to obtain high-resolution strain measurement via phase detection of the interferometric signal whilst the wavelength-shift of the two FBGs forming the FFPI is used for determination of the fringe number of the interferometric signal.

Paper Details

Date Published: 9 November 2000
PDF: 4 pages
Proc. SPIE 4185, Fourteenth International Conference on Optical Fiber Sensors, 41854L (9 November 2000); doi: 10.1117/12.2302308
Show Author Affiliations
Y. J. Rao, Chongqing Univ. (China)

Published in SPIE Proceedings Vol. 4185:
Fourteenth International Conference on Optical Fiber Sensors
A. G. Mignani; H. C. Lefèvre, Editor(s)

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