Fiber optic total reflected extrinsic Fabry-Perot interferometric sensor for measuring structural strain

Il-Bum Kwon; Man-Yong Choi; Hahngue Moon

doi:10.1117/12.397899

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31 August 2000 Fiber optic total reflected extrinsic Fabry-Perot interferometric sensor for measuring structural strain

Il-Bum Kwon, Man-Yong Choi, Hahngue Moon

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Proceedings Volume 4074, Applications of Optical Fiber Sensors; (2000) https://doi.org/10.1117/12.397899
Event: Symposium on Applied Photonics, 2000, Glasgow, United Kingdom

Abstract

Fiber optic TR-EFPI (total reflected extrinsic Fabry-Perot interferometric) sensor is developed to measure the strain of structures, such as building, bridge, aircraft, etc. It has been difficult to distinguish the increase and decrease of the strain from the conventional fiber optic EFPI sensor because their signals only have a sinusoidal wave pattern related to the change of strain. In this study, in order to measure the magnitude and the direction of strain, the fiber optic sensor is simply constructed with the total reflected EFPI sensor probe and the digital signal processing.

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Il-Bum Kwon, Man-Yong Choi, and Hahngue Moon "Fiber optic total reflected extrinsic Fabry-Perot interferometric sensor for measuring structural strain", Proc. SPIE 4074, Applications of Optical Fiber Sensors, (31 August 2000); https://doi.org/10.1117/12.397899

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