Characterization of motion artifacts from the interfacial instability of textile electrodes and skin using a simulated method

Abstract

An objective method to evaluate the motion artifacts of textile electrodes was presented using a self-made apparatus. The apparatus simulates skin-electrode mechanical interaction by controlling electrodes moving on a volume conductor with various speed and contact pressure. Three different types of electrodes was characterized and the motion induced electrical noise (Eocp) of a pair of the same structural electrodes were recorded, peak-to-peak of the noise (Eocp ) was calculated for evaluating the amplitude of motion artifacts. The results shown that motion artifacts decreased with increased movement speed and contact pressure. For textile electrodes, woven plain structure exhibits the minimum motion artifacts.