摘要
利用N I的PX I-6281高速数据采集卡来完成角速度波动信号的采集,借鉴信号失真度的概念,分析角速度反馈信号的基波和高次谐波大小,求取高次谐波与基波幅值比,作为角速度波动率。
This paper introduces a method of calibrating and processing angular speed fluctuation in NI sampling system-PXI-6281 ,it accomplishes the acquisition of angular speed fluctuation by distortion of signal, analyzing fundamental wave, high-order harmonic of angular speed feedback signal, and calculating the amplitude ratio of base-wave and high-order harmonic.
出处
《计测技术》
2007年第4期35-38,49,共5页
Metrology & Measurement Technology
关键词
精密离心机
角速度波动率
虚拟仪器
失真度
基波
高次谐波
precise centrifuger
angular speed fluctuation rate
virtual instrument
distortion
fundamental wave
high-order harmonic
