摘要
构造了全光纤振动传感系统,可用于对发电机组,飞机发动机等大型电机设备的健康状况监测。全光纤振动传感系统由于传感臂是光纤,属于无源器件,不会受到电磁干扰,其检测到的信号完全是由电机振动产生,且监测的灵敏度极高。克服了传统的加速度传感器容易受到电磁干扰导致信号检测出错的缺点。用全光纤振动传感器对电机的振动进行实时的采集,基于LabVIEW平台对振动信号进行实时的频谱分析,很容易判断电机是否工作正常。该检测系统结构简单,振动检测灵敏度高,能够很好地应用于电机健康状况的监测。
A new running condition monitoring method of motors such as generator sets,and aircraft engines,using distributed fiber-optic sensor has been introduced.A Michelson Interferometer based fiber-optic sensor is constructed,which offers a high sensitivity of disturbance detection.Because the sensing arms of the sensor are composed of optical fiber,the distributed fiber-optic interferometric sensor provides a high capacity of anti-electromagnetic interference.The monitoring system has simple structure,and the sensor can be fixed on the motor easily to monitor its running condition.
出处
《传感器与微系统》
CSCD
北大核心
2011年第4期41-43,共3页
Transducer and Microsystem Technologies
基金
国家"973"计划资助项目(2010CB327805)
科技部创新方法工作专项计划资助项目(2009IM032900)
关键词
分布式光纤传感器
电机振动
故障诊断
频谱分析
distributed fiber-optic sensor
motor vibration
fault diagnosis
frequency analysis
