A strain sensing system using a novel optical fibre Bragg grating sensor and a synthetic heterodyne interrogation technique

Allsop, Thomas D.P., Chisholm, Karen E., Bennion, Ian, Malvern, A. and Neal, Ron (2002). A strain sensing system using a novel optical fibre Bragg grating sensor and a synthetic heterodyne interrogation technique. Measurement Science and Technology, 13 (5), pp. 731-740.

Abstract

A potential low cost novel sensing scheme for monitoring absolute strain is demonstrated. The scheme utilizes a synthetic heterodyne interrogation technique working in conjunction with a linearly chirped, sinusoidally tapered, apodized Bragg grating sensor. The interrogation technique is relatively simple to implement in terms of the required optics and the peripheral electronics. This scheme generates an output signal that has a quasi-linear response to absolute strain with a static strain resolution of ~±20 με and an operating range of ~1000 με.

Publication DOI: https://doi.org/10.1088/0957-0233/13/5/311
Divisions: Engineering & Applied Sciences > Electrical, electronic & power engineering
Engineering & Applied Sciences > Institute of Photonics
Uncontrolled Keywords: fibre Bragg gratings,optical fibre sensors,strain,Materials Science (miscellaneous),Ceramics and Composites,Polymers and Plastics
Full Text Link: http://iopscience.iop.org/0957-0233/13/5/311/
Related URLs: http://www.scopus.com/inward/record.url?scp=0036573966&partnerID=8YFLogxK (Scopus URL)
Published Date: 2002-05
Authors: Allsop, Thomas D.P.
Chisholm, Karen E.
Bennion, Ian
Malvern, A.
Neal, Ron

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