NDLI: Common-mode noise cancellation circuit for wearable ECG

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Common-mode noise cancellation circuit for wearable ECG

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Common-mode noise cancellation circuit for wearable ECG

Content Provider	IET Digital Library
Author	Noro, Mutsumi Anzai, Daisuke Wang, Jianqing
Abstract	Wearable electrocardiogram (ECG) is attracting much attention for monitoring heart diseases in healthcare and medical applications. However, an imbalance usually exists between the contact resistances of sensing electrodes, so that a common mode noise caused by external electromagnetic field can be converted into the ECG detection circuit as a differential mode interference voltage. In this study, after explaining the mechanism of how the common mode noise is converted to a differential mode interference voltage, the authors propose a circuit with cadmium sulphide photo-resistors for cancelling the imbalance between the contact resistances and confirm its validity by simulation experiment. As a result, the authors found that the interference voltage generated at the wearable ECG can be effectively reduced to a sufficient small level.
Starting Page	64
Ending Page	67
Page Count	4
Volume Number	4
e-ISSN	20533713
Issue Number	Issue 2, Apr (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/htl/4/2
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/htl.2016.0083
Journal	Healthcare Technology Letters
Publisher	The Institution of Engineering and Technology
Publisher Date	2017-04-20
Access Restriction	Open
Rights License	Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/)
Subject Keyword	Bioelectric Signal Biology And Medical Computing Biomedical Electrodes Biomedical Electronics Cadmium Compound Cadmium Sulphide Photoresistors CdS Common-mode Noise Cancellation Contact Resistance Differential Mode Interference Voltage Digital Signal Processing Diseases ECG Detection Circuit Electrical Activity in Neurophysiological Processes Electrocardiogram Electrocardiography Electrodiagnostics And Other Electrical Measurement Technique External Electromagnetic Field Healthcare Heart Disease Monitoring Medical Application Medical Signal Processing Patient Monitoring Photoelectric Device Photoresistors Sensing Electrodes Signal Denoising Signal Processing And Detection Wearable ECG
Content Type	Text
Resource Type	Article

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