Open AccessMEMS‐based flexible capacitive electrode for ECG measurement
Author(s) -
Wang LongFei,
Liu JingQuan,
Peng HuiLing,
Yang Bin,
Zhu HongYing,
Yang ChunSheng
Publication year - 2013
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2012.4064
Subject(s) - capacitive sensing , electrode , materials science , signal (programming language) , microelectromechanical systems , electrical conductor , optoelectronics , acoustics , torso , electrical engineering , electronic engineering , biomedical engineering , computer science , engineering , composite material , medicine , chemistry , physics , anatomy , programming language
A thin and flexible capacitive electrode for recording an electrocardiogram (ECG) signal has been developed. Compared with the conventional wet electrode, the capacitive electrode can work without conductive gel and skin preparation, and serves as a tool of long‐term ECG measurement. The designed electrode consists of a sensing plate, an active shield plate and two insulating layers, which is fabricated by the micro‐electro‐mechanical system process. The test result shows that the capacitive electrode can obtain a high‐quality ECG signal that is comparable to the one recorded by the conventional wet electrode. The capacitive electrode can be arbitrarily bent to fit the human torso because of its extremely thin and flexible feature. Moreover, a simple front‐end circuit is used to integrate more easily into the measurement system.