标题: A Low-Power Bio-Potential Acquisition System with Flexible PDMS Dry Electrodes for Portable Ubiquitous Healthcare Applications
作者: Chen, Chih-Yuan
Chang, Chia-Lin
Chang, Chih-Wei
Lai, Shin-Chi
Chien, Tsung-Fu
Huang, Hong-Yi
Chiou, Jin-Chern
Luo, Ching-Hsing
電機工程學系
Department of Electrical and Computer Engineering
关键字: dry electrode;PDMS;PMMA;bio-potential acquisition system;ECG
公开日期: 1-三月-2013
摘要: This work describes a bio-potential acquisition system for portable ubiquitous healthcare applications using flexible polydimethylsiloxane dry electrodes (FPDEs) and a low-power recording circuit. This novel FPDE used Au as the skin contact layer, which was made using a CO2 laser and replica method technology. The FPDE was revised from a commercial bio-potential electrode with a conductive snap using dry electrodes rather than wet electrodes that proposed reliable and robust attachment for the purpose of measurement, and attaching velcro made it wearable on the forearm for bio-potential applications. Furthermore, this study proposes a recording device to store bio-potential signal data and provides portability and low-power consumption for the proposed acquisition system. To acquire differential bio-potentials, such as electrocardiogram (ECG) signals, the proposed recording device includes a low-power front-end acquisition chip fabricated using a complementary metal-oxide-semiconductor (CMOS) process, a commercial microcontroller (MSP430F149), and a secure digital (SD) card for portable healthcare applications. The proposed system can obtain ECG signals efficiently and are comfortable to the skin. The power consumption of the system is about 85 mW for continuous working over a 3 day period with two AA batteries. It can also be used as a compact Holter ECG system.
URI: http://dx.doi.org/10.3390/s130303077
http://hdl.handle.net/11536/21754
ISSN: 1424-8220
DOI: 10.3390/s130303077
期刊: SENSORS
Volume: 13
Issue: 3
起始页: 3077
结束页: 3091
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