专业资料参考首选目录摘要································································································ I A bstract ·························································································· II 引言···························································································· 1 第一章概述···················································································· 2 选题的背景和意义.......................................................................................... 2 脉搏测量仪的发展与应用.............................................................................. 3 第二章脉搏测量仪系统结构··························································· 5 光电脉搏测量仪的结构.................................................................................. 5 工作原理........................................................................................................... 5 光电脉搏测量仪的特点................................................................................... 6 第三章硬件系统············································································ 7 控制器.............................................................................................................. 7 AT89S52 简介............................................................................................... 7 AT89S52 的特点........................................................................................... 7 AT89S52 的结构........................................................................................... 7 电源电路...................................................................................................... 10 时钟电路...................................................................................................... 10 复位电路..................................................................................................... 11 脉搏信号采集................................................................................................. 12 .
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