Title :
Discrimination between strain and temperature effects using dual-wavelength fibre grating sensors
Author :
Reekie, L. ; Dakin, J.P.
fDate :
6/23/1994 12:00:00 AM
Abstract :
The spectral behaviour of two superimposed fibre gratings having different Bragg wavelengths (850 and 1300 nm) with respect to strain and temperature has been studied. The results show that the ratio of sensitivity at two Bragg wavelengths is dependent on strain and temperature, which can be used for simultaneous measurement of these parameters using a single sensing element
Keywords :
diffraction gratings; fibre optic sensors; sensitivity; strain gauges; 850 to 1300 nm; Bragg wavelengths; dual-wavelength fibre grating sensors; fibre optic sensors; single sensing element; spectral behaviour; strain effects; superimposed fibre gratings; temperature effects;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19940746
