Real-Time Monitoring Sensor System for Fiber Bragg Grating Array

Author

Liu, Shengchun ; Yu, Youlong ; Zhang, Jintao ; Chen, Xiangfei

Author_Institution

Heilongjiang Univ., Harbin

Volume

19

Issue

19

fYear

2007

Firstpage

1493

Lastpage

1495

Abstract

A time-division multiplexed fiber Bragg grating (FBG) sensor system capable of real-time monitoring is proposed and experimentally validated. It is based on an unbalanced Michelson interferometer, a delay signal generator, and a tree-structured single-pole-double-throw switch array. Realization of real-time monitoring is because the arriving time of sensing signals is synchronized with the controlling signals of the switches. A phase meter is used to measure the strain of FBG sensors.

Keywords

Bragg gratings; Michelson interferometers; fibre optic sensors; monitoring; phase meters; signal generators; FBG sensor system; Michelson interferometer; delay signal generator; fiber Bragg grating array; fiber Bragg grating sensor system; phase meter; real-time monitoring sensor system; single-pole-double-throw switch array; Bragg gratings; Delay; Fiber gratings; Monitoring; Real time systems; Sensor arrays; Sensor systems; Signal generators; Strain measurement; Switches; Fiber Bragg grating (FBG) sensors; multiplexing technology; real-time monitoring;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2007.903769

Filename

4303172