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为了实现步进电机的高精度控制,通过操作旋转编码器,获得位置、速度信号,解决传统的通过键盘中断控制步进电机导致的精度较低的情况。设计了一套步进电机速度随动系统,此系统将通过手动转动旋转编码器产生的电脉冲信号传入S3C2440处理器芯片进行信号处理,再通过S3C2440处理器芯片控制步进电机驱动芯片驱动步进电机,实现步进电机的高精度,实时手动控制。实验表明,该控制系统能够实现通过手动控制旋转编码器来间接自由地控制步进电机,具有操作灵活、实时性强等特点。此系统能很好的应用在医疗组织切片等场合。
In order to realize the high-precision control of the stepper motor, the position and speed signals are obtained by operating the rotary encoder, so as to solve the problem that the traditional stepper motor controlled by the keyboard interrupt has lower precision. Design a set of stepper motor speed servo system, this system will manually rotate the rotary encoder generated by the electrical pulse signal into S3C2440 processor chip for signal processing, and then through the S3C2440 processor chip control stepper motor driver chip driver Into the motor, to achieve high precision stepper motor, real-time manual control. Experiments show that the control system can realize the indirect and free control of the stepping motor by manually controlling the rotary encoder, which has the characteristics of flexible operation and real-time performance. This system can be well used in medical tissue slices and other occasions.