数字测量

• Digitalized measuring signal is processed in the at89c52 single chip that is the core chip of the inferior subsystem , and the measuring result is obtained , then it is transmitted to the superior subsystem through the serial - parallel interface of single chip
  数字测量信号在下位机系统的核心处理芯片at89c52中计算后，得到测量结果，再经串口送入上位机系统显示。本文的最后一章论述了上位机系统的硬件结构和软件程序。