DocumentCode
1200480
Title
Temperature-insensitive tilt sensor with strain-chirped fiber Bragg gratings
Author
Dong, Xinyong ; Zhan, Chunlei ; Hu, Kun ; Shum, Ping ; Chan, Chi Chiu
Author_Institution
Network Technol. Res. Centre, Nanyang Technol. Univ., Singapore, Singapore
Volume
17
Issue
11
fYear
2005
Firstpage
2394
Lastpage
2396
Abstract
A novel tilt sensor with three fiber Bragg gratings (FBGs) has been demonstrated. It can detect the magnitude as well as the direction of the inclination from the horizontal direction by measuring the reflected optical powers of the FBGs, whose bandwidths vary with the inclination, directly. The experimental results show that it is insensitive to temperature. The measurement accuracy of ±0.13° and resolution of 0.02° have been achieved.
Keywords
Bragg gratings; chirp modulation; fibre optic sensors; optical fibres; spatial variables measurement; inclination direction; measurement accuracy; strain-chirped fiber Bragg gratings; temperature-insensitive tilt sensor; Bandwidth; Bragg gratings; Capacitive sensors; Fiber gratings; Optical fiber sensors; Optical filters; Optical sensors; Steel; Temperature measurement; Temperature sensors; Fiber Bragg gratings (FBGs); fiber-optic sensors; temperature-insensitive; tilt measurement;
fLanguage
English
Journal_Title
Photonics Technology Letters, IEEE
Publisher
ieee
ISSN
1041-1135
Type
jour
DOI
10.1109/LPT.2005.857978
Filename
1522331
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