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stepper motor angular displacement volume and input pulses strictly proportional to motor rotating ring, no accumulated error, the stepper motor is used digital control system implementation motor, and widely used in small satellites. To stepper motor in a small satellites necessary for safe operation on the ground do the same testing. Below introduced in a small satellite payload ground detector using Windows XP multimedia timer-- Stepping Motivation high precision control method.
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多媒体定时器实现步进电动机控制.pdf