基于Cortex-M3的心电采集仪的设计  

Design of an Electrocardiogram Acquisition Instrument Based on Cortex-M3

作　　者：段水平 

机构地区：[1]长沙理工大学电气与信息工程学院,湖南长沙410004

出　　处：《电子科技》2015年第4期95-97,共3页Electronic Science and Technology

摘　　要：介绍了一种简单易用的便携式心电信号的采集系统。系统采用STM32处理器,选用Ag Cl电极及Ⅲ导联线从强噪声环境下采集提取人体心电信号,再经OP07和AD620A、OPA2604为核心元件的模拟前端对采集到的心电信号进行滤波放大,并通过STM32单片机进行数字化处理,得到能够反映人体实际心电特征的信号,且在LCD上实时显示出来。该设计简单,系统功耗低、稳定性高,适合于心血管病人家庭使用。This paper introduces a portable data acquisition system for acquiring ECG signals,which is easy to operate. The system adopts the STM32 processor,the Ag Cl electrode and Ⅲ lead wire collecting human ECG signals from environments with strong noise. The signals are then filtered and amplified through the analog front end which has OP07,AD620 A,and OPA2604 as the core component. Finally the signals are digitalized by using STM32 SCM with signals which can reflect the actual ECG features obtained and displayed on the LCD in real time. The design has the advantages of simplicity,low power consumption,high stability,and is therefore suitable for families of cardiovascular patients.

关 键 词：STM32 AD620 OPA2604 心电信号 

分 类 号：R540.41[医药卫生—心血管疾病] TP368.2[医药卫生—内科学]