DocumentCode
1354876
Title
Absolute strain measurement using an in-fibre-Bragg-grating-based Fabry-Perot sensor
Author
Rao, Y.J. ; Cooper, M.R. ; Jackson, D.A. ; Pannell, C.N. ; Reekie, L.
Author_Institution
Dept. of Optoelectron. Eng., Chongqing Univ., China
Volume
36
Issue
8
fYear
2000
fDate
4/13/2000 12:00:00 AM
Firstpage
708
Lastpage
709
Abstract
A novel method far achieving 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 carry out high-resolution strain measurement via phase detection of the interferometric signal while the wavelength shift of the two FBGs forming the FFPI is used for determining the fringe number of the interferometric signal
Keywords
Bragg gratings; Fabry-Perot interferometers; fibre optic sensors; strain sensors; all-fibre Fabry-Perot interferometric sensor; in-fibre Bragg grating; strain measurement;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20000359
Filename
850545
Link To Document