Title :
Temperature-immune and intensity-referenced pressure sensor based on strain-induced quadratic-chirped fibre bragg grating
Author :
Guo, T. ; Yang, J. ; Zhao, Q.D. ; Huang, G.L. ; Xue, L.F. ; Zhang, H. ; Dong, X.Y.
Author_Institution :
Inst. of Modern Opt., Nankai Univ., Tianjin
Abstract :
A technique for temperature-immune pressure measurement using a strain-induced quadratic-chirped fibre Bragg grating by differential optical power detection is demonstrated. Linear pressure measurement up to 20 kPa with a resolution of 0.05 kPa and thermal stability less than 2% full-scale for a temperature range from 0 to 80degC are achieved using pin photodiodes detection, without any temperature compensation
Keywords :
Bragg gratings; compensation; fibre optic sensors; p-i-n photodiodes; pressure sensors; 0 to 80 C; differential optical power detection; intensity-referenced sensor; pin photodiodes detection; pressure measurement; pressure sensor based; strain-induced quadratic-chirped fibre Bragg grating; temperature compensation; temperature-immune sensor; thermal stability;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20073379
