Fiber optic strain twin-sensor-array for smart structural health monitoring 被引量：1

Fiber optic strain twin-sensor-array for smart structural health monitoring

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摘要 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. 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.

作者赵士刚苑立波

机构地区 National University Science Park 中国光学学会光电技术专业委员会

出处《智能系统学报》 2008年第2期177-180,共4页 CAAI Transactions on Intelligent Systems

基金 National Natural Science Foundation of China(60577005) Specialized Research Fund for the Doctoral Program of Higher Education Institute of MOE,China,to Harbin Engineering University

关键词光纤敏感器双敏感器数组干涉仪多路驱动 fiber optic sensor white light interferorneter multiplexing technique twin-sensor-array ternperature compensation Michelson interferorneter

分类号 TP212.14 [自动化与计算机技术—检测技术与自动化装置]

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