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Open AccessArticle10.1515/mms-2015-0009

Distributed Fiber-Optic Sensor for Detection and Localization of Acoustic Vibrations

Radim Šifta,Petr Münster,Petr Sysel,Tomáš Horváth,Vít Novotný,Ondřej Krajsa+1 more-2015-03-01-Metrology and Measurement Systems
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TL;DRAbstract

Abstract A sensing system utilizing a standard optical fiber as a distributed sensor for the detection and localization of mechanical vibrations is presented. Vibrations can be caused by various external factors, like moving people, cars, trains, and other objects producing mechanical vibrations that are sensed by a fiber. In our laboratory we have designed a sensing system based on the Φ-OTDR (phase sensitive Optical Time Domain Reflectometry) using an extremely narrow laser and EDFAs.

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Abstract A sensing system utilizing a standard optical fiber as a distributed sensor for the detection and localization of mechanical vibrations is presented. Vibrations can be caused by various external factors, like moving people, cars, trains, and other objects producing mechanical vibrations that are sensed by a fiber. In our laboratory we have designed a sensing system based on the Φ-OTDR (phase sensitive Optical Time Domain Reflectometry) using an extremely narrow laser and EDFAs.

Keywords

ReflectometryOptical time-domain reflectometerDistributed acoustic sensingVibrationOptical fiberFiber optic sensorAcousticsMaterials science

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