Title :
Fibre grating pressure sensor with enhanced sensitivity using a glass-bubble housing
Author :
Xu, M.G. ; Geiger, H. ; Dakin, J.P.
Author_Institution :
Optoelectron. Res. Centre, Southampton Univ., UK
fDate :
1/18/1996 12:00:00 AM
Abstract :
A fibre Bragg grating pressure sensor with enhanced sensitivity has been demonstrated, using a grating housed in a glass bubble. This configuration increases the pressure sensitivity and effectively reduces the thermal crosstalk by a factor of 4. A pressure resolution of 0.5% over a full measurement range of 14 MPa has been achieved. This concept could lead to a range of sensors using fibre gratings with mechanical amplifiers to enhance sensitivity
Keywords :
diffraction gratings; fibre optic sensors; optical crosstalk; pressure sensors; sensitivity; 0 to 14 MPa; Bragg grating; fibre grating pressure sensor; full measurement range; glass-bubble housing; mechanical amplifiers; pressure resolution; pressure sensitivity; sensitivity; thermal crosstalk;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19960022
