心电信号采集和调理电路的设计  

Design of ECG Signal Acquisition and Processing Circuit

作　　者：景艳梅[1] 王砚生 何文学[1] JING Yan-mei＇, WANG Yan-sheng2, HE Wen-xue （1.College of Physics and Electronic Information, Yunnan Normal University, Kunming 650092, China; 2.Wucheng Primary School Kunming 650031, Yunnan）

机构地区：[1]云南师范大学物理与电子信息学院,云南昆明650092 [2]武城小学,云南昆明650031

出　　处：《电脑知识与技术》2012年第1期220-222,共3页Computer Knowledge and Technology

摘　　要：心电信号是人体重要的生理信号,载有人体心脏传导系统生理、病理信息,对心电信号的监护是临床上进行心脏研究和诊断心血管疾病的重要方法。针对心电信号低频微弱特性,提出了一种基于MSP430超低功耗单片机的便携式心电监护系统的设计方案,给出了心电监护终端硬件结构的总体框架,重点介绍了信号调理电路的设计,包括放大电路、滤波电路及右腿驱动电路的设计。ECG signal is an important human physiological signal, containing the human cardiac conduction system of physiological and pathological information. The ECG monitoring is an important method performed on the heart study and clinical diagnosis of cardiovascular diseases. Aiming at the weak low frequency characteristic of ECG signals, one kind of portable ECG monitoring system is proposed based on the MSP430 MCU, and the ECG monitoring terrninal hardware structure of the framework is given. In this paper, the design of the signal processing circuit is focused on, including an amplifier circuit, filter circuit and the right leg drive circuit design.

关 键 词：心电信号 心电监护 MSP430 降噪 信号调理 

分 类 号：TP273[自动化与计算机技术—控制科学与工程;自动化与计算机技术—检测技术与自动化装置]