基于LabVIEW的主动磁悬浮轴承位移传感器故障识别  

Fault Identification ofActive Magnetic Levitation Bearing Displacement Sensor Based on LabVIEW

作　　者：杨昕红[1] 郑安琪 YANG Xin-hong;ZHENG An-qi(Human Resources Office,Shenyang Polytechnic College,Shenyang 110045;Shenyang University of Technology,Shenyang 110870,Liaoning Province)

机构地区：[1]沈阳职业技术学院人事处,辽宁沈阳110045 [2]沈阳工业大学,辽宁沈阳110870

出　　处：《沈阳工程学院学报（自然科学版）》2022年第4期82-87,共6页Journal of Shenyang Institute of Engineering:Natural Science

摘　　要：针对主动轴承系统的差动位移传感器,研究了传感器探头的容错控制,对传感器探头的故障类型和位置等成因进行了总结说明,分析了相应的建模方法,最后提出了一种基于差动特征的故障识别方法。该方法采用LabVIEW的离散傅立叶变换(DFT)来监测探头故障,通过对控制器输出电压与传感器输出电压的相位差进行傅立叶变换,识别出探头故障。Aiming at differential displacement sensor of active bearing system,the fault-tolerant control of sensor probe is studied,the causes of fault types and positions of sensor probe are summarized,and the corresponding modeling methods are analyzed.Finally,a fault identification method based on differential characteristics is proposed.The method utilizes the discrete Fourier transform(DFT)of LabVIEW to monitor the probe fault that is identified by Fourier transform of the phase difference between the output voltage of the controller and the output voltage of the sensor.

关 键 词：传感器 傅立叶变换 LABVIEW 

分 类 号：TH822[机械工程—仪器科学与技术]