Simultaneously high-sensitivity pressure and temperature sensor using a superstructure fiber grating

Author

Lin, Chia-Min ; Liu, Wen-Fung ; Fu, Ming-Yue ; Sheng, Hao-Jan ; Bor, Sheau-Shong ; Chen, Tzu-Chiang

Author_Institution

Dept. of Electr. Eng., Feng-Chia Univ., Taiwan

fYear

2004

fDate

24-27 Oct. 2004

Firstpage

1273

Abstract

A simple simultaneously high-sensitivity pressure and temperature sensor based on a superstructure fiber grating (SFG) is experimentally demonstrated. By means of an SFG encapsulated in a polymer-half-filled metal cylinder, the applied pressure on the SFG is transferred into axial extended-strain with the characteristics of positive pressure sensitivity. The pressure sensitivity can be reached to 3×10^-2 MPa^-1 with the temperature sensitivity of 0.023nm/°C.

Keywords

diffraction gratings; electronics packaging; encapsulation; fibre optic sensors; pressure sensors; temperature sensors; applied pressure; axial extended-strain; high-sensitivity pressure and temperature sensor; polymer-half-filled metal cylinder encapsulated SFG; positive pressure sensitivity characteristics; superstructure fiber grating; temperature sensitivity; Bragg gratings; Capacitive sensors; Fiber gratings; Optical fiber sensors; Polymers; Pressure measurement; Sensor phenomena and characterization; Strain measurement; Temperature measurement; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensors, 2004. Proceedings of IEEE

Print_ISBN

0-7803-8692-2

Type

conf

DOI

10.1109/ICSENS.2004.1426413

Filename

1426413