基于柔性电极的便携式心电监测系统研究  

Study on Portable ECG Monitoring System Based on Flexible Electrode

作　　者：孙卫红 常卫东 杨兴[2] 朱灿林 王博[2] 贾炎燊 SUN Wei-hong;CHANG Wei-dong;YANG Xing;ZHU Can-lin;WANG Bo;JIA Yan-shen(School of Electrical and Information Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;State Key Laboratory of Precision Testing Technology and Instruments,Tsinghua University,Beijing 100084,China)

机构地区：[1]北京建筑大学电气与信息工程学院,北京100044 [2]清华大学精密仪器系精密测试技术及仪器国家重点实验室,北京100084

出　　处：《测控技术》2022年第3期7-11,共5页Measurement & Control Technology

基　　金：北京市教育委员会科技一般项目专项资金(KM201910016008);国家自然科学基金项目(52075291);北京建筑大学科学研究基金项目(KYJJ2017031)。

摘　　要：针对普通干电极和医用湿电极应用于心电监测系统时存在的问题,制备了一种聚二甲基硅氧烷(polydimethylsiloxane,PDMS)基底上阵列金字塔结构的柔性电极。该电极通过阵列金字塔结构加大电极表面积,减小电极阻抗,并对心电信号处理电路、基于安卓端的APP等部分进行了设计,制作了便携式心电监测系统。实验结果表明,上位机可实时显示心电波形,同时,使用制备的柔性电极可以采集到较好的心电信号。Aiming at the problem existing in the application of common dry electrode and medical wet electrode in electrocardiogram(ECG)monitoring system,a flexible electrode with pyramid array structure on polydimethylsiloxane(PDMS)substrate is prepared.The electrode increases surface area to reduces the electrode impedance through the array pyramid structure.The ECG signal processing circuit and APP based on Android terminal are designed,and a portable ECG monitoring system is made.The experimental results show that the upper computer can display the ECG waveform in real time,and the prepared flexible electrode can collect better ECG signals.

关 键 词：心电监测系统 心电信号 柔性电极 PDMS 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]