针对快速诊断试纸切割机的控制精度和生产效率偏低的现状,文中设计了一种快速诊断试纸切割机自动控制系统,该系统以STC89C52RC单片机为核心,针对直流电机调速,提出了基于PID算法的PWM脉冲调制思想及其实现方法,并给出了PID控制参数整定方法和系统实际调试过程中的部分相关数据.实践证明:该系统的响应速度、稳定性、调速精度都达到了较好的水平,满足用户的要求.%For the realities of low control accuracy and low production efficiency of rapid diagnostic test strips cutting machine,this paper designed an automatic control system of the rapid diagnostic test strips cutting machine.The system took STC89C52RC MCU as the core.In connection with DC motor speed control,the paper proposed the PWM pulse modulation thinking based on the PID algorithm and its implementation,and presented the PID control parameters tuning method and some relevant data in the actual debugging process of the system.Practice proves that all of the response speed,stability,and speed accuracy of the system achieve a better level.It fully meets the user requirements.
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