[1]ZHAO Shi-gang,YUAN Li-bo.Fiber optic strain twinsensorarray for smart? structural health monitoring[J].CAAI Transactions on Intelligent Systems,2008,3(2):177-180.
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Fiber optic strain twinsensorarray for smart? structural health monitoring

CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume: 3 Number of periods: 2008 2 Page number: 177-180 Column: 学术论文—机器感知与模式识别 Public date: 2008-04-25
Title:
Fiber optic strain twinsensorarray for smart? structural health monitoring
Author(s):
ZHAO Shi-gang1;  YUAN Li-bo2
1.National University Science Park, Harbin Engineering University, Harbin 150001 ,China;
2.College of Science, Harbin Engineering University, Harbin 150001,China
Keywords:
fiber optic sensor;  white light interferometer;  multiplexing technique;  twinsensorarray;  temperature compensation;  Michelson interferometer
CLC:
TP311
DOI:
-
Abstract:
A multiplexed white light interferometric fiber optic twinsensorarray was designed to monitor the structural health of large buildings. In this sensing system, based on a Michelson interferometer, an optical path matching technique is used to demodulate each twinsensor. Each twinsensorarray consists of a 2×N sensing element linked by a 3 dB coupler. When one of the twinsensor is used to measure strain, variations caused by temperature can be compensated for by referencing the other twinsensor. The multiplexing capacity of the sensing scheme has been analyzed and experimental results with a 2×3 twinsensorarray are given.
References:
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