A low-power bio-potential acquisition system with flexible PDMS dry electrodes for portable ubiquitous healthcare applications

Chih Yuan Chen, Chia Lin Chang, Chih Wei Chang, Shin Chi Lai, Tsung Fu Chien, Hong Yi Huang, Jin-Chern Chiou, Ching Hsing Luo*

*此作品的通信作者

研究成果: Article同行評審

51 引文 斯高帕斯(Scopus)

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.

原文English
頁(從 - 到)3077-3091
頁數15
期刊Sensors (Switzerland)
13
發行號3
DOIs
出版狀態Published - 1 3月 2013

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