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文章介绍了1种无接触无中断干扰的纤维光学振动传感器，该传感器由1个50／125μm多模通讯级直接偶合器、1个调制820nmLED和1个PIN光电二级管模件组成。传感纤维是直接偶合器的1条臂。这种传感器设计用于探测未准备好的反射表面和传感纤维终端的细微变化。当将传感器置于离振动
This paper introduces a non-contact, fiber optic vibration sensor with no interrupting interference. The sensor consists of a 50/125 μm multimode communication direct coupler, a modulating 820 nm LED and a PIN photodiode module. The sensing fiber is one arm of the direct coupler. This sensor is designed to detect subtle changes in the non-prepared reflective surfaces and sensing fiber ends. When the sensor is placed away from vibration