Secondly, servo control tache is introduced briefly, and how to realize a closed-loop position control system which USES stepping motor as driver component is presented.
其次，对于伺服控制环节，实现了以步进电机为驱动元件的闭环位置控制系统。
Servo card receives target position information, samples the launcher position, calculates control value, sends it to motor driver, and then makes the launcher work under control.
伺服控制卡接收火控计算机发出的目标位置指令，采样发射架实际位置信息，通过控制算法得出控制量，驱动电机运转，实现发射架位置的跟踪运动。
The company has also developed three parts of robot - reducer, controller, driver and servo motor.
完全自主研制了机器人自动化的三大核心零件 --减速机、控制器、驱动器和伺服电机。
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