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Sensors 2014, 14(8), 14732-14743; https://doi.org/10.3390/s140814732

Flexible Capacitive Electrodes for Minimizing Motion Artifacts in Ambulatory Electrocardiograms

1
Interdisciplinary Program for Bioengineering, Graduate School, Seoul National University, Seoul 110-799, Korea
2
Department of Oriental Biomedical Engineering, Sangji University, Wonju 220-702, Korea
3
Samsung Advanced Institute of Technology, 130, Samsung-ro, Yeongtong-gu, Suwon 443-803, Korea
4
Department of Biomedical Engineering, College of Medicine, Seoul National University, Seoul 110-799, Korea
*
Author to whom correspondence should be addressed.
Received: 24 June 2014 / Revised: 5 August 2014 / Accepted: 7 August 2014 / Published: 12 August 2014
(This article belongs to the Special Issue Biomedical Sensors and Systems)
Full-Text   |   PDF [1183 KB, uploaded 12 August 2014]

Abstract

This study proposes the use of flexible capacitive electrodes for reducing motion artifacts in a wearable electrocardiogram (ECG) device. The capacitive electrodes have conductive foam on their surface, a shield, an optimal input bias resistor, and guarding feedback. The electrodes are integrated in a chest belt, and the acquired signals are transmitted wirelessly for ambulatory heart rate monitoring. We experimentally validated the electrode performance with subjects standing and walking on a treadmill at speeds of up to 7 km/h. The results confirmed the highly accurate heart rate detection capacity of the developed system and its feasibility for daily-life ECG monitoring. View Full-Text
Keywords: capacitive electrode; flexible electrode; ambulatory electrocardiogram capacitive electrode; flexible electrode; ambulatory electrocardiogram
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Lee, J.S.; Heo, J.; Lee, W.K.; Lim, Y.G.; Kim, Y.H.; Park, K.S. Flexible Capacitive Electrodes for Minimizing Motion Artifacts in Ambulatory Electrocardiograms. Sensors 2014, 14, 14732-14743.

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