MEMS-based flexible capacitive electrode for ECG measurement

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 el...

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Bibliographic Details
Published in:Electronics letters 2013-06, Vol.49 (12), p.739-740
Main Authors: Wang, Long-Fei, Liu, Jing-Quan, Peng, Hui-Ling, Yang, Bin, Zhu, Hong-Ying, Yang, Chun-Sheng
Format: Article
Language:English
Subjects:
active shield plate
Biological and medical sciences
Biomedical technology
bioMEMS
ECG signal recording
electrocardiogram
electrocardiography
Electrocardiography. Vectocardiography
electrochemical electrodes
Electrodiagnosis. Electric activity recording
Exact sciences and technology
high quality ECG signal
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
insulating layers
Investigative techniques, diagnostic techniques (general aspects)
long term ECG measurement
Mechanical instruments, equipment and techniques
mechanical system process
Medical sciences
MEMS based flexible capacitive electrode
microfabrication
Micromechanical devices and systems
Physics
thin flexible capacitive electrode
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Description
Summary: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.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2012.4064