本文讨论了磁盘轴向偏摆信号处理的原则和方法,阐述了高速A/D接口设计原则。在多次采样的前提下,对所测信号进行了加权滤波和FFT分析,设计了数据采集,数据处理及绘图程序,得到了磁盘轴向偏摆的位移曲线,速度曲线及加速度曲线,为磁盘轴向偏摆信号的计算机处理提供了一套完整的方法。 This paper discusses the principle and method of magnetic axial deflection signal processing, and expounds the design principle of high speed A / D interface. On the premise of multiple sampling, the measured signal was weighted filtering and FFT analysis, data acquisition, data processing and drawing program was designed, and the displacement curve, speed curve and acceleration curve of the axial deflection of the disk were obtained. Computerized axial deflection signal processing provides a complete set of methods.