文档介绍：编号:
审定成绩:
重庆邮电大学
毕业设计(论文)
设计(论文)题目:
心电放大器的设计
学院名称:
通信与信息工程学院
学生姓名:
专业:
电子信息工程
班级:
学号:
指导教师:
答辩组负责人:
填表时间: 2010 年 5 月
重庆邮电大学教务处制
摘要
心电图electrocardiogram,ECG)作为心血管疾病诊断中的一种重要的方法,能为心脏疾病的正确分析、诊断、治疗和监护提供客观指标。ECG是一种重要的心电信号检测技术,它反映心脏兴奋的产生、传导和恢复过程中的生物电变化。心电检测技术是一种安全、无创、准确的检测方法,其广泛应用于临床监测中。为方便人们实时了解心律的变化,根据心电信号特征设计了便携式心电图仪。本系统采用高精度通用运算放大器AD620对输入的心电信号进行放大,再进行低通滤波,滤去高频生物电,同时采用右脚屏蔽驱动电路,消除50Hz生物电和机器信号的影响,最后在数字示波器上得到清晰的心电波形。该心电图仪设计简洁,携带方便,经过调试运行流畅,能够达到观察心电信号的目的。另外本文综述了ECG基础理论、心电检测技术,并对心电信号检测技术的发展趋势作了展望。
【关键词】心电放大器心电图监测系统心电图心电图参数
ABSTRACT
Electrocardiogram (ECG) has been an important diagnostic basis of cardiovascular disease,which can provide some objective indicators for its analyzing,diagnosing,treating and can reflect the changes of bioelectrical during the heart excitement generation transmission and recovery detecting technology is a safe,non-invasive,and accurate method,which has been widely used in clinical order to facilitate people to understand the change of heart rate in real-time,designing the portable electro-cardiogram meter according to the heart electrical signal system adopts high-accuracy currency operational amplifier AD620 to deal with the input ECG signal for amplification,than go along low-pass filter to filter the high-frequency bioelectricity,at the same time use the shield electric circuit with the right foot drive,by which eliminates 50Hz of electrical and machinery Signals, at last digital oscilloscope are clear display electrocardiograph's design is inct an debugging,it can move smoothly,and serve the purposes of observing the heart electrical ,The basic of ECG,the detecting technology are summarized in this development of ECG detecting technology will be presented.
【Key words】ECG Amplifier ECG Monitoring System Electrocardiogram ECG parameter
目录
前言 1
第一章心电放大器系统概述 2
第一节心电放大器系统简介和基本原理 2
一、心电放大器总体简介 2
二、心电放大器的基本参数 3
三