本科论文目 录摘 要....................................................................................................................IAbstract.....................................................................................................................II引 言...................................................................................................................11 控制系统设计........................................................................................................21.1 主控系统方案设计.......................................................................................21.2 脉搏传感器方案设计...................................................................................31.3 系统工作原理...............................................................................................52 硬件设计................................................................................................................62.1 主电路...........................................................................................................62.1.1 单片机的选择......................................................................................62.1.2 STC89C51 的主要功能及性能参数...................................................62.1.3 STC89C51 单片机引脚说明...............................................................62.2 驱动电路.......................................................................................................82.2.1 比较器的介绍......................................................................................82.3 放大电路.......................................................................................................82.4 最小系统.....................................................................................................113 软件设计..............................................................................................................133.1 编程语言的选择..................................
