| 1. | Hardware controller uses the at89c51 monolithic integrated circuit , a / d transformation uses 12 bit transformations chips max187 , has completed the design of a front channel for sampling and processing the simulated signal 其中硬件单片机采用at89c51单片机, a / d转换采用12位转换芯片max187 ,完成了模拟信号从采样到处理的整个前向通道设计。 |