Vibration monitoring of optical cables
In this paper, various technologies of distributed fiber-optic vibration sensing are reviewed, from interferometric sensing technology, such as Sagnac, Mach–Zehnder, and Michelson, to backscattering-based sensing technology, such as phase-sensitive optical time domain. Fiber optic vibration sensors that use existing fiber optic cables laid for communication have the advantage of being able to collectively and accurately measure vibrations over a wide range along the cables1), 2), and in recent years, they have been attracting attention as a means of environmental. Vibration analysis is one of the proven methods in fault detection in a variety of dynamic components. Unlike traditional point-type vibration sensors, DVS realizes continuous, real-time. The ability to easily and economically acquire and synchronize multiple high-precision fiber optic accelerometer measurements brings the benefits of fiber optic sensing to a wid ding precision and sensitivity.
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