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非接触式光纤传感器因其抗干扰性强、灵敏度高、电绝缘性好等特点在某些场合占有不可替代的位置－ 本文介绍了一种用于检测大型涡轮机液压轴承运动状态及其周围油膜厚度分布情况的光纤传感器系统－ 详细讨论了传感器的结构及数据模型，并着重介绍了系统的几个重要组成部分，其中包括双光路、调制解调和并行数据采集等，最后给出了传感器的特性测试数据－
Non-contact optical fiber sensor because of its strong anti-interference, high sensitivity, good electrical insulation and other characteristics occupy an irreplaceable position in some occasions - This paper describes a large turbine hydraulic bearings used to detect the movement and the surrounding oil film thickness This paper introduces the structure and data model of the sensor in detail, and introduces some important components of the system, including dual optical path, modulation and demodulation and parallel data acquisition. Finally, the characteristics of the sensor Test Data-