中文摘要：

基于叶尖定时原理设计一套旋转叶片振动实时检测系统，该系统主要由光纤传感、数据采集、振动分析三个部分组成。光纤传感的核心是叶尖定时传感器和光电转换模块的设计，数据采集实现对转换后的脉冲数据进行高速采集、预处理和与计算机之间的高速通信，振动分析则由计算机软件进行实时处理并显示分析结果。整套系统在现场某大型压气机上进行了原理性验证，同时在高速模拟转子上通过了实时性验证，异步振动分析结果与应变片监测的数据完全吻合，保证了整套系统最终应用于压气机叶片振动的在线实时监测。

英文摘要：

A vibration monitoring system for rotating blade based on tip-timing is developed, and it consists of three parts, i.e. optical-fiber sensing, data acquisition and vibration analysis. The designs of tip-timing sensors and photoelectric converter are the important part of optical-fiber sensing. High-speed collection, preprocessing and communication with computer for transformed pulse data are realized in data acquisition part. In addition the real-time data processing and analytical result display are completed in vibration analysis part. The verification of the principle of the whole set system is completed on an on-site large compressor, while the real-time verification is passed on a high-speed stimulated rotor. The analysis results of asynchronous vibration are completely consistent with the data by strain gauge, thereby ensuring the successful application of the whole set of system in real-time on-line monitoring of the vibration of compressor blades.