摘要
设计了一种基于Atmega128单片机的医用负压控制系统。传感器产生的负压信号通过放大和A/D转换后给单片机,单片机通过软件实现对负压信号的PID控制,输出一个频率变化的电压来实现对步进电机转速的控制,从而实现对负压的精确控制。
A medical vacuum control system based on Atmega128 is designed in this paper.The vacuum signal created by Atmega128,sensor is sent to the microcontroller after magnification and A/D converting.Through the digital PID control of the vacuum signal,a frequency variable voltage is emitted to control the velocity of the step motor,thus achieve the precise control of vacuum.
出处
《工业控制计算机》
2009年第11期88-89,共2页
Industrial Control Computer
