Measuring ECG using capacitive electrodes based on spherical volume conductor model

摘要

Monitoring heart activity continuously is highly desirable in patients with heart conditions. In the conventional electrocardiography (E CG), galvanic Ag/AgCl electrodes are directly attached to the skin to obtain E C G signals. In this paper, we investigate the feasibility of recording E C G signals without skin contact based on a spherical volume conductor model. A novel capacitive electrode is designed and evaluated. Our theoretical study and experiments have shown promising results of this new electrode.