毕业论文基于单片机的脉搏测量仪目 录摘要IABSTRACTII引 言1第一章 概述21.1 选题的背景和意义...........................................................................................21.2 脉搏测量仪的进展与应用...............................................................................3第二章 脉搏测量仪系统结构52.1 光电脉搏测量仪的结构...................................................................................52.2 工作原理...........................................................................................................52.3 光电脉搏测量仪的特点...................................................................................6第三章 硬件系统73.1 控制器...............................................................................................................73.1.1 AT89S52 简介................................................................................................73.1.2 AT89S52 的特点............................................................................................73.1.3 AT89S52 的结构............................................................................................73.1.3 电源电路......................................................................................................103.1.4 时钟电路......................................................................................................103.1.5 复位电路......................................................................................................113.2 脉搏信号采集.................................................................................................123.2.1 光电传感器的原理......................................................................................123.2.2 光电传感器的结构......................................................................................123.2.3 光电传感器检测原理..................................................................................133.2.4 信号采集电路.................................
