Capacitive Monitoring of Bio and Neuro Signals
- 주제(키워드) Capacitive electrode , Insulation electrode , EEG , ECG , EMG
- 발행기관 대한의용생체공학회
- 발행년도 2014
- 총서유형 Journal
- KCI ID ART001891409
- 본문언어 영어
초록/요약
Capacitive electrode is emerging as a useful tool for theinconspicuous monitoring of bio- and neuro-signal. It operateswith the displacement currents instead of the real chargecurrents, and its electrolytic electrode–skin interface isreplaced by a dielectric material, an electrically insulatedlayer or air. Here, we introduce the basic principles ofcapacitive recording of biosignals and categorize the variouscapacitive recording methods as ‘built-in’, ‘helmet’, ‘bandand film’ and ‘pad and chip’ type, and describe the detailedfeatures of each method. Each type is designed according tothe signal type and anatomical position. Especially the‘built-in’ type is focused on electrocardiogram (ECG) in ourreal life. Insulators in the applications are also selected byvarious materials and we described. A recent progress inmicroelectromechanical system (MEMS) technology enabledthe capacitive measurement of bio and neuro signals and webriefly mention the contribution of MEMS technology. Conclusively, we describe the future potential applications ofcapacitive monitoring beyond the laboratory environment.
more초록/요약
Capacitive electrode is emerging as a useful tool for theinconspicuous monitoring of bio- and neuro-signal. It operateswith the displacement currents instead of the real chargecurrents, and its electrolytic electrode–skin interface isreplaced by a dielectric material, an electrically insulatedlayer or air. Here, we introduce the basic principles ofcapacitive recording of biosignals and categorize the variouscapacitive recording methods as ‘built-in’, ‘helmet’, ‘bandand film’ and ‘pad and chip’ type, and describe the detailedfeatures of each method. Each type is designed according tothe signal type and anatomical position. Especially the‘built-in’ type is focused on electrocardiogram (ECG) in ourreal life. Insulators in the applications are also selected byvarious materials and we described. A recent progress inmicroelectromechanical system (MEMS) technology enabledthe capacitive measurement of bio and neuro signals and webriefly mention the contribution of MEMS technology. Conclusively, we describe the future potential applications ofcapacitive monitoring beyond the laboratory environment.
more