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. 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. School of Information Management, Beijing Information Science and Technology University, Beijing 100192, China Authors to whom correspondence should be addressed. Distributed Acoustic Sensing (DAS) is a novel technology that uses fiber optics to sense and monitor vibrations. It has demonstrated. Vibration analysis is one of the proven methods in fault detection in a variety of dynamic components. However, lack of experimental data on actual machinery in comparison to test bench devices, has made it difficult for a reliable fault detection and lifetime assess-ment. 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. Based on Fabry- Pérot (FP)Perot technology, os7500.