NDLI: Non-contact ECG employing signal compensation

Content Provider	IEEE Xplore Digital Library
Author	Guochen Peng Bocko, M.F.
Copyright Year	2013
Description	Author affiliation: Electr. & Comput. Eng., Univ. of Rochester, Rochester, NY, USA (Guochen Peng; Bocko, M.F.)
Abstract	Non-contact ECG monitoring is an attractive option in a number of applications such as long-term health monitoring where traditional adhesive ECG sensors would cause skin irritation and require frequent replacement. Also, integrating ECG sensors into furniture, automobile seats and elsewhere in the environment will enable non-invasive sensing of cardiac signals. Subject-electrode relative motion causes spurious signals and significant signal distortion. The ECG signal of interest as well as static charge and electromagnetic interference are modulated by changes in the coupling capacitance between the electrodes and subject, which leads to significant distortions. The focus of this paper is the development of a non-contacting ECG sensing system including the electrodes, interface electronics and a signal-processing unit that work together to address this issue. The subject-to-electrode distance is continuously monitored by a secondary sensing circuit that uses the ECG electrodes themselves which serve as both the primary ECG readout and the secondary subject-to-electrode distance readout. Finally, the experimental results show the secondary readout signal can be used to compensate the motion-related gain variations of the primary ECG monitoring circuit as well as the additive interference by motion events.
Starting Page	57
Ending Page	60
File Size	1117124
Page Count	4
File Format	PDF
ISBN	9781479914715
DOI	10.1109/BioCAS.2013.6679639
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-10-31
Publisher Place	Netherlands
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes Interference Electrocardiography Capacitance Sensors Capacitance measurement Monitoring
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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