基于单片机的扭矩测量系统的设计

Design of Torque Measuring System Based on SCM

介绍一种基于单片机的扭矩测量系统。通过在弹性轴上黏贴电阻式应变片的方式制作出一个扭矩传感器,使用单片机AT89C51对采集的扭矩信号进行处理并通过LED数码管显示出来,从而实现在线测量扭矩的目的。文中详细介绍了模数转换器AD574芯片与单片机构成的模数转换电路,LED数码管的显示接口电路以及使用MAX232芯片实现与PC机连接的串口通信电路。

This paper introduces a torque measuring system based on SCM.We make a torque sensor by passing resistance strain gauges on the elastic element.To realize on-line measurement of torque,the single chip AT89C51 is used to deal with the torque signal and the output will be shown on LED display.In the paper,we make a detail introduction of A/D conversion circuit by chip AD574,LED display interface circuit and the serial communication circuit by which the single chip can connect to PC.