英语翻译我们设计的这个超声波测距仪基于AT89C51单片机为系统核心控制各模块,以基于555芯片模块发射超声波信号,信号遇到障碍物后返回,通过以四个LM324芯片为主的电路接收声波信号,从而

Question

英语翻译
我们设计的这个超声波测距仪基于AT89C51单片机为系统核心控 制各模块,以基于555芯片模块发射超声波信号,信号遇到障碍物后返回,通过以四个LM324芯片为主的电路接收声波信号,从而使单片机测出发射和接收回波的时间差t,然后求出距离S=Ct/2,（式中的C为超声波波速）,最后通过8位数码管显示测量结果.各模块中发射模块以自制12V直流电源供电,其他模块以5V电源供电.

Answer 1

This ultrasonic range finder that we designed controls every module keyly for the system on the basis of AT89C51 one-chip computer,in order to transmit the ultrasonic signal on the basis of 555 chip module,return after the signal meets barriers,through receive the acoustic signal with four LM324 chip as the circuit of the main fact,thus make the one-chip computer examine and set out to penetrate and receive time difference t of the return waves echo,then ask,appear from S=Ct/2,(whether C of type ultrasonic wave speed),in charge of,reveal result of measuring through 8 number finally.Every module launch module in order to make by oneself 12V direct current source supply power,other module supply power so as to 5V power.