摘要
为使心电图(ECG:Electrocardiograph)机简单便携,采用干电池供电模式,提供不高于3 V的电压,应用放大器AD623、TLV2254和阻容器件组成心电图机的前置放大器,实现了心电微弱信号的高精度放大、极化电压的快速消除等功能,保证了心电微弱信号的精确和稳定,便于心电图机后续数据采集和分析。同时,由于采用单电源供电,使心电图机供电模式简化,电路更加简单,促进了心电图机进一步向便携式方向发展。
To implement the simple and portable characteristic for electrocardiogram machine, this design adopts the dry battery, which can provide not more than 3 V. The whole circuit is composed of amplifier AD623, TLV2254 and some resistance or capacitance. High precision enlarged for faint electrocardiogram signal, the fast elimination for polarized voltage and other functions are achieved by this circuit. It ensures the accuracy and steady of electrocardiogram signal, providing good situation for the flowing data sampling and analyzing for electrocardiograph （ECG） machine. In the same time, since using single power supply, it make power supply mode of electrocardiogram machine more simplify, make circuit more simple, promote the electrocardiogram machine further to portable direction.
出处
《吉林大学学报（信息科学版）》
CAS
2011年第2期116-120,共5页
Journal of Jilin University（Information Science Edition）
关键词
单电源
心电图机
生物电放大电路
single supply
electrocardiograph （ECG） machine
bioelectricity amplifier circuit
