Title :
Bend measurement using Bragg gratings in multicore fibre
Author :
Gander, M.J. ; MacPherson, W.N. ; McBride, Ryan ; Jones, J.D.C. ; Zhang, L. ; Bennion, I. ; Blanchard, P.M. ; Burnett, J.G. ; Greenaway, A.H.
Author_Institution :
Heriot-Watt Univ., Edinburgh, UK
fDate :
1/20/2000 12:00:00 AM
Abstract :
The first measurements of curvature made using Bragg gratings written in separate cores of a multicore optical fibre are described. The gratings act as independent, but isothermal, strain gauges. The difference in Bragg wavelength between the gratings provides a temperature-independent measurement of the local curvature
Keywords :
Bragg gratings; curvature measurement; fibre optic sensors; optical fibre testing; strain gauges; Bragg gratings; Bragg wavelength; bend measurement; isothermal strain gauges; local curvature; multicore fibre; temperature-independent measurement;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000157
