非接触式心电电极的研制

Development of the Non-contact ECG Electrode

基于电容耦合原理设计了一款可用于生理电信号采集的非接触式电极,利用动态屏蔽、电极有源驱动等技术提高信号质量。实验利用此电极搭建了心电信号采集系统,将非接触式电极采集到的心电信号与传统湿电极采集的信号进行对比,结果表明该文研制的非接触式电极能够有效地满足心电信号的采集需求。

We designed a non-contact electrode on the basis of the capacitance coupling principle, it can be used for physiological signal acquisition, it uses dynamic shielding and electrode active driving technology to improve the quality of the signal. Experiments use this electrode to structure the ECG signal acquisition system, the ECG signal were collected with non-contact electrodes, comparing with traditional wet electrodes, the results show that non- contact electrodes developed in this paper can effectively meet the needs of ECG signal acquisition.