The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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An Analysis on the Effect of the Shape Features of the Textile Electrode on the Non-contact Type of Sensing of Cardiac Activity Based on the Magnetic-induced Conductivity Priciple

직물 전극의 형상 특성이 자계 유도성 전도율 기반의 비접촉식 심장활동 센싱에 미치는 효과의 분석

  • Gi, Sun Ok (College of Human Ecology, Clothing and Textile, Yonsei University) ;
  • Lee, Young Jae (School of Biomedical Eng., Research Institute of Biomedical Engineering, Konkuk University) ;
  • Koo, Hye Ran (College of Human Ecology, Clothing and Textile, Yonsei University) ;
  • Khang, Seon Ah (College of Human Ecology, Clothing and Textile, Yonsei University) ;
  • Park, Hee Jung (School of Biomedical Eng., Research Institute of Biomedical Engineering, Konkuk University) ;
  • Kim, Kyeong Seop (School of Biomedical Eng., Research Institute of Biomedical Engineering, Konkuk University) ;
  • Lee, Joo Hyeon (College of Human Ecology, Clothing and Textile, Yonsei University) ;
  • Lee, Jeong Whan (School of Biomedical Eng., Research Institute of Biomedical Engineering, Konkuk University)
  • 지선옥 (연세대학교 의류환경학과) ;
  • 이영재 (건국대학교 대학원 의학공학부) ;
  • 구혜란 (연세대학교 의류환경학과) ;
  • 강선아 (연세대학교 대학원 의류환경학과) ;
  • 박희정 (건국대학교 대학원 의학공학부) ;
  • 김경섭 (건국대학교 의학공학부) ;
  • 이주현 (연세대학교 의류환경학과) ;
  • 이정환 (건국대학교 의학공학부)
  • Received : 2013.04.19
  • Accepted : 2013.05.23
  • Published : 2013.06.01
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Abstract

The purpose of this research is to analyze the effect of shape of the inductive textile electrode on the non-contact heart activity sensing, based on the magnetic-induced conductivity principle. Four types of the inductive textile electrodes were determined according to the combinations of the two shape features. A fiber-metal hybrid-typed conductive thread was developed and applied to materialization of the textile electrodes by embroidery method. The heart activity was extracted through the textile electrode sewn on a T-shirt. The experiments were implemented to constantly measure the heart activity for 20 seconds, in each case of 5 healthy male subjects. The heart activity signals acquired in each type of the inductive textile electrode were analyzed, 1)by drawing a comparison of morphology with those of ECG signal (LeadII), and 2)by calculation of the normalized mean and standard deviation of magnitude of the heart activity signals. The analysis resulted that the relatively better quality of signals were acquired in the 'square' types in the matter of whole shape, while the better results were obtained in 'donut' types in the matter of center hole. Accordingly, the relatively best quality of signals was obtained in the case of 'Square-Donut' type of the inductive textile electrode.

Keywords

References

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