Non-contact ECG recording system with real time capacitance measurement for motion artifact reduction

Abstract

A system for non-contact ECG recording is proposed that measures the real time electrode-body capacitance concurrently with the ECG. The realized system has been bench-validated to accurately measure capacitance and initial measurements on the human body are presented that indicate a correlation between electrode motion artifacts in the ECG and the real time capacitive impedance signal. This indicates that the additional capacitance information can potentially be used to reduce electrode motion artifacts, one of the main problems in ECG recording.