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提出了用于录像机软件伺服控制系统设计的鼓伺服系统模型；针对这种模型计算和测试了所需要的参数，又提出了用计算机辅助设计和分析技术建立三维实体模型，快速准确计算磁鼓组件物理参数的新方法，确定出相关系数；并用实验验证了理论分析计算结果，最后建立了鼓电机的等效电路模型。
The servo servo system model for the servo control system of video recorder is put forward. The required parameters are calculated and tested for this model. The 3D solid model is established by computer aided design and analysis technology to calculate the drum assembly quickly and accurately Physical parameters of the new method to determine the correlation coefficient; and experimentally validated the theoretical analysis and calculation results, and finally established the drum equivalent circuit model of the motor.