Title :
Optical fibre temperature and humidity sensor
Author :
Zhang, Chenghui ; Zhang, Wensheng ; Webb, David J. ; Peng, Gang-Ding
Author_Institution :
Photonics Res. Group, Aston Univ., Birmingham, UK
Abstract :
An optical fibre sensor system for humidity and temperature, comprising two Bragg gratings recorded in silica and polymer fibre, has been characterised. The response of this system is very well conditioned (2-norm condition number = 8.8) and consequently uncertainties in wavelength measurement do not lead to large errors in the recovered humidity and temperature.
Keywords :
Bragg gratings; fibre optic sensors; humidity sensors; polymer fibres; silicon compounds; temperature sensors; Bragg gratings; SiO2; humidity sensor; optical fibre temperature sensor; polymer fibre; silica; wavelength measurement uncertainties;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.0879
