Title :
Real-Time Monitoring Sensor System for Fiber Bragg Grating Array
Author :
Liu, Shengchun ; Yu, Youlong ; Zhang, Jintao ; Chen, Xiangfei
Author_Institution :
Heilongjiang Univ., Harbin
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;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.903769
