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Motion-Induced Imbalance of Contact Impedance in ECG Capture: Comparison of Electrode Materials in Capacitive Coupling

Publication Type Conference Paper
Authors Sebastian Pfeiffer, Sebastian Meyer, Oliver Amft, Daisuke Anzai, Jianqing Wang, Georg Fischer, Jens Kirchner
Title Motion-Induced Imbalance of Contact Impedance in ECG Capture: Comparison of Electrode Materials in Capacitive Coupling
Abstract Differences in contact impedance of the ECG measurement electrodes lead to asymmetries of the signal paths and thus result in reduced common-mode rejection and artifacts. Here, the imbalance of contact impedance is investigated for different types of electrodes with capacitive coupling in terms of static imbalance as well as dynamic variation during body movement. Flexible and incompressible materials like conductive foam and fabric showed the best overall performance. The negative effect of rigidity can partly be compensated by adding conducting foam, while soft materials can profit from an increase of electrode area.
Date October 2019
Proceedings Title 2019 IEEE SENSORS
Conference Name 2019 IEEE SENSORS
Pages 1-4
DOI 10.1109/SENSORS43011.2019.8956609
Short Title Motion-Induced Imbalance of Contact Impedance in ECG Capture
Library Catalog IEEE Xplore
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