本文较全面叙述了每毫米8道的磁盘定位系统的设计思想。论证了粗控方案,给出控制方式和框图,包括理论分析和计算公式。从理论和实际上解决了粗/精控转换问题,从而大大减少了邻道寻的时间。对精控系统进行了分析和综合设计,最后对短音圈电机设计参数提出改进意见,并附有不同电机结构的自然谐振频率的曲线图。 This article more fully describes the design of disk positioning system 8 per millimeter. The rough control scheme is demonstrated, and the control method and block diagram are given, including theoretical analysis and calculation formula. The problem of coarse / fine conversion is solved theoretically and practically, which greatly reduces the time of searching for adjacent channels. The precision control system was analyzed and integrated design. Finally, the improvement suggestion was given to the design parameters of the short voice coil motor with the natural resonant frequency curves of different motor structures.