精选优质文档-倾情为你奉上摘 要脉搏传感器采样脉搏信号，采用STC89C51单片机作为控制器，脉搏传感器输出方波传入单片机，单片机每接收一个脉冲波形，数码管就计数一次。脉搏次数超限时用蜂鸣器报警。三极管加大功率 ，驱动器件工作。单片机软件设计，设置中断向量，编程执行。关键词：STC89C51单片机、脉搏测量仪、软件设计Abstract:Pulse sensor sampling pulse signal, using STC89C51 MCU as controller, pulse sensor output square wave into single chip microcomputer chip, each receiving a pulse waveform, digital tube counting time. Pulse frequency overrun with buzzer alarm. The three transistor to increase power, driving device. MCU softw
