文档介绍：数字电子脉搏计的设计
学 生： 周帆
指导老师： 蔡培中
（湖南农业大学东方科技学院，长沙 ）
摘 要：脉搏波所呈现出来的形态、强度、速率和节律等方面的综合信息，能反映出人体心血管系统中许多生理疾病的血流特征。根据人体脉搏信号特征，本文采用红外光电式传感器作为脉搏信号检测部分，并设计了信号放大、滤波、整形等电路；采用80C51单片机作为控制核心，结合程序共同实现对脉搏信号的测量与控制，设计了具有键盘输入设定、声音警报提示、测量结果显示功能的数字电子脉搏计。通过调试，表明本系统可以实现对脉搏波动频率的测量，为医生的诊断提供客观依据，具有一定的临床应用价值。本文首先描述设计的整体思路，然后介绍各个部分设计中的细节问题，最后提出一些完善本设计的改进意见。
关键词：脉搏计；传感器；单片机；
Design of the Nuierical Electronic Pulse Accounts
Student: Zhou Fan
Tutor: Cai Peizhong
(Orient Science & Technology College of Hunan Agricultural University,Changsha )
Abstract：The shape,intensity,speed,and rhythm of pulse signals mostly reflect the physical and pathological characters of heart-blood system in human to the characteristics of the human pulse signals,the digital electron pulsometer uses the infrared photoelectricity type sensor to take the pulse signal examination part,and uses the electric circuit to enlarge,filter and reshape the pulse signal;It uses the 80C51 monolithic integrated circuit to take the control core,and uses the procedure to survey and control the pulse signal together;it has the keyboard entry established,the sound warning prompted and the measurement result demonstrated show that the system can measure and
display the pulse fluctuation frequency,providing an objective basis for doctors to diagnose and having certain clinical the beginning of the paper,the integral notion of the device design is brought ,the detail information of each part is last part,some suggestions for improving the device are provided.
Key words: Pulsometer;Sensor;Monolithic integrated circuit
目 录
摘 要……………………………………………………………………………………1
关键词…………………………………………………………………………………1
1前言………………………………………………………………………………1
2 数字电子脉搏计方案的确定………………………………………………………2
脉搏计基本工作要求及其功能……………………………………………2
脉搏计基本方案的选择及确定……………………………………………3
3 传感器的选择及其电路的设计……………………………………………………5
传感器的选用及其原理结构…………………………………………5
传感器