Title :
Dispersion-based differential wavelength measurements for Bragg grating sensors
Author :
Diminstein, O. ; Gorbatov, N. ; Tur, M.
Author_Institution :
Fac. of Eng., Tel Aviv Univ., Israel
fDate :
1/4/2001 12:00:00 AM
Abstract :
The difference between the wavelengths of peak reflection of two Bragg gratings is directly measured using the dispersion properties of optical fibres. When both gratings see the same varying temperature, while only one of them is exposed to the stress field, this method provides temperature-independent stress measurements
Keywords :
Bragg gratings; fibre optic sensors; optical fibre dispersion; strain measurement; strain sensors; stress measurement; Bragg grating sensors; Bragg gratings; dispersion properties; dispersion-based differential wavelength measurements; optical fibres; peak reflection; stress field; temperature-independent stress measurements;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010041
