基于气压控制的球体升降高度自动控制系统的研究

针对精确控制球体在管道内升降高度问题,提出一种基于气压控制原理的球体升降高度自动控制系统的设计方法。系统通过控制器控制步进电机转动角度,控制管道内气压的变化,进而控制球体升降高度。测试结果表明该系统能够设定球体升降高度、停留时间、动作次序等运动指令,以无线方式发送控制信息,实时显示球体高度及误差信息。相对误差为1.45%,由球体的运动情况反映管内气压状况,在物理等实验教学领域具有良好的应用前景。

Research of sphere lifting height of the automatic control system based on air pressure control

For precise control of table tennis lifting height in the pipeline,this paper puts forward a better way based on the control of pressure automatic regulating＇ s principle to regulate sphere lifting height. By controlling the stepper motor,MCU changes the rotation moving angle to manage the pipeline pressure change. The test result shows that the system can set lifting height,residence time,the order of table tennis movement,send control information via wireless communication and display table tennis height,error information continuously. The relative error is 1.45%. With the movements of table tennis,it reflects the status of the pipeline＇s pressure. This system has good application prospect in the physics experimental teaching.