Title :
Simultaneous and independent sensing of arbitrary temperature and bending using sampled fibre Bragg grating
Author :
Gwandu, B.A.L. ; Shu, X. ; Liu, Y. ; Zhang, W. ; Zhang, L. ; Bennion, I.
Author_Institution :
Photonics Res. Group, Aston Univ., Birmingham, UK
fDate :
7/19/2001 12:00:00 AM
Abstract :
A novel application of sampled fibre Bragg gratings for measuring arbitrary magnitudes of bending curvature and temperature simultaneously and independently is reported. Spectral splitting of cladding modes provides information on the curvature, whereas the wavelength shifts of the narrow transmission peaks facilitate measurement of temperature. A bending curvature of 11.03 m-1 was recorded corresponding to a spectral mode splitting of 126 nm
Keywords :
Bragg gratings; bending; fibre optic sensors; optical fibre cladding; strain measurement; strain sensors; temperature measurement; temperature sensors; Bragg grating; arbitrary magnitudes; bending; bending curvature; bending sensors; cladding modes; curvature; fibre Bragg gratings; independent sensing; narrow transmission peaks; sampled fibre Bragg gratings; simultaneous sensing; spectral mode splitting; spectral splitting; temperature; temperture sensors; wavelength shifts;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010663
