基于光纤技术的叶端定时传感器

Research for Tip-Timing Sensor Based on Optical Fiber Technology

叶端定时测量是一种新型的在线实时测量叶片振动的有效方法 ,激光光纤叶端定时传感器是整个测试系统设计的关键 .该文研究了叶端定时测量方法 ,并对应用于高速旋转汽轮机叶片振动在线实时监测的光纤叶端定时传感器进行了设计研究和试验 ,研究了一个具有高分辨、大频宽和高信噪比的激光光纤传感器的设计方案 。

The blade tip-timing has become an effective new method to measure the in-situ vibration at turbo-machinery rotor blade tips.The fiber optic probe is the key part of such instruments.This paper briefly describes the operating principle of such measurement system.A high resolution,large bandwidth and high signal-to-noise ratio fiber optic sensor has been studied for the trubo-machinery rotor blade vibration measurement instrument,and verified in the laboratory.