磁浮主轴回转精度的测试  

Rotation Accuracy Measurement of Magnetic Suspension Spindle

作　　者：李旗[1] 方海燕[1] 

机构地区：[1]西安理工大学机械与精密仪器工程学院,西安710048

出　　处：《机床与液压》2004年第8期156-158,共3页Machine Tool & Hydraulics

摘　　要：磁浮主轴与一般主轴相比 ,其转速高 ,某些特殊用途的磁浮主轴还必须具有极高的回转精度。本文针对磁浮主轴的特点 ,以复数型频率分析的回转精度的理论为基础 ,设计了五自由度磁浮主轴回转精度的测试系统。硬件电路采用了锁相倍频技术 ,采集的数据用复序列FFT进行处理 。According to the characteristics of magnetic suspension spindle and the theory of rotation accuracy based on pluralism frequency analysis,a measurement system of rotation accuracy of a magnetic suspension spindle was presented which has five degrees of freedom. PLL (phase-locked loop) doubling circuit was applied in hardware, and FFT with complex sequences was used to process the data, all of this realizes the aim of measurement.

关 键 词：磁浮主轴 回转精度 复频谱分析 数据采集系统 锁相环 

分 类 号：TH133.2[机械工程—机械制造及自动化]