A novel respiratory detecting system based on bio-impedance.
- Author:
Jian-bo WANG
1
;
Qin-kai DENG
;
Jin-song GUO
;
Xue-ji FENG
Author Information
1. Bioinformatics Department, Basic Medical Institute of Southern Medical University, Guangzhou 510515. wjb0917@163.com
- Publication Type:Journal Article
- MeSH:
Electric Impedance;
Electrodes;
Respiratory Function Tests;
instrumentation;
methods;
Software
- From:
Chinese Journal of Medical Instrumentation
2009;33(2):91-94
- CountryChina
- Language:Chinese
-
Abstract:
This paper introduces the design and implementation of a novel respiratory detecting system based on bio-impedance method. By increasing electrodes in space, the system make multi-channel respiratory signals be superpositioned and filtered (SNR); Traditional filter methods by both hardware and software are also used to further increase anti-interference ability. A low consumption and portable instrument is designed based on MSP430 Micro Controller Unit (MCU), The experiment shows a better performance in the reduction of interference noises of heartbeat and blood flow especially the motion artifact. Also the system works stably.
