Analysis and comparison of textile electrode's electrical characteristics in several shapes for biopotential signals

생체 신호 측정을 위한 섬유전극의 형태에 따른 전기적 특성 분석 및 비교

  • 이영재 (건국대학교 의료생명대학 의학공학과) ;
  • 이강휘 (건국대학교 의료생명대학 의학공학과) ;
  • 이정환 (건국대학교 의료생명대학 의학공학과) ;
  • 강다혜 (연세대학교 의류환경학과) ;
  • 조하경 (연세대학교 의류환경학과) ;
  • 조현승 (연세대학교 의류과학연구소) ;
  • 이주현 (연세대학교 의류환경학과)
  • Published : 2008.10.31


Many kinds of electrodes have been developed in various forms and shapes for measurement of bio potential signal. Textile electrode has benefit of collect long tenn data monitoring because of it is non-consciousness, convenient and do not occur skin irritation. However, It is very difficult to acquire available data due to high impedance of electrode and unstable skin-electrode contact which generate motion artifact. Also snap button which usually used as mediator between textile and measurement device cause change of electrical characteristics. In this paper, we inflated textile electrode to stabilize contact and add conductive silver paste between textile and snap button to improve conductance. To compare the performance of two methods, flat or inflated and add conductive paste or not, four types of electrodes are tested on each impedance and SNR by ECG measurement. In result, the first type electrode which flat and non-conductive paste showed the worst performance and the last type electrode which is inflated shape and contain conductive paste show the best performance.