On the possibility of detecting the electrical bioimpedance of human body by using non-contact electrodes in capacitive connection

摘要

In this paper, the characterization of electrodes with three different contact surfaces - aluminum foil, conductive metallized nylon fabric and copper plated printed circuit board - in non-contact measurement setup, is presented. The frequency responses are shown and self-resonant frequencies designated to suggest the excitation frequency for measurement of electrical bioimpedance. The conclusions are made concerning the influence of motion artifact through the change of the distance between the surfaces of the skin and electrode.