Capacitive Measurement of ECG for Ubiquitous Healthcare

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• 作者：Yong Gyu Lim (1)
  Jeong Su Lee (2)
  Seung Min Lee (3)
  Hong Ji Lee (2)
  Kwang Suk Park (4)
  
• 关键词：Capacitive measurement ; Capacitive electrode ; Fully non ; contact ECG ; Capacitive ground ; Wearable ECG ; Non ; intrusive ECG ; Ubiquitous Healthcare
• 刊名：Annals of Biomedical Engineering
• 出版年：2014
• 出版时间：November 2014
• 年：2014
• 卷：42
• 期：11
• 页码：2218-2227
• 全文大小：961 KB
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• 作者单位：Yong Gyu Lim (1)
  Jeong Su Lee (2)
  Seung Min Lee (3)
  Hong Ji Lee (2)
  Kwang Suk Park (4)
  
  1. Department of Oriental Biomedical Engineering, Sangji University, Wonju, 220-702, Korea
  2. Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, 110-799, Korea
  3. Department of Biomedical Engineering, College of Health Science, Korea University, Seoul, 136-703, Korea
  4. Department of Biomedical Engineering, College of Medicine, Seoul National University, Seoul, 110-799, Korea
  
• ISSN：1573-9686

文摘

The technology for measuring ECG using capacitive electrodes and its applications are reviewed. Capacitive electrodes are built with a high-input-impedance preamplifier and a shield on their rear side. Guarding and driving ground are used to reduce noise. An analysis of the intrinsic noise shows that the thermal noise caused by the resistance in the preamplifier is the dominant factor of the intrinsic noise. A fully non-contact capacitive measurement has been developed using capacitive grounding and applied to a non-intrusive ECG measurement in daily life. Many ongoing studies are examining how to enhance the quality and ease of applying electrodes, thus extending their applications in ubiquitous healthcare from attached-on-object measurements to wearable or EEG measurements.