Besides to control rotate speed of electromotor , the control system adjusts wind speed , substantively it is the control of speed press ( v2 = 2q / p ) . so , flow field control system adjusts speed press through the control of rotate of electromotor 风洞流场控制系统除对电动机转速调节外,主要控制风速v ,实质上就是控制其速压q ( v ~ 2 = 2q p ) ,所以,风洞流场控制系统是通过控制电动机转速,来调节实验段内的速压。
Microcomputer inputs data document and sends out electric current signal to control wind velocity according to the setted value of speed . the major work of single - chip microcomputer is to get electric current signal from microcomputer and transfer the signal into decimalization ascii then send to show Pc机把采集来的数据文件调入,按照设定的速度,给下位机(单片机)发送一个控制风速的电流值,并且在pc机的界面上画图,显示发送数据的大小。