现代检验医学杂志2011，Vol.26Issue(3)：23-26,4.DOI:10.3969/j.issn.1671-7414.2011.03.008
医用CO2浓度检测系统设计及信号处理方法研究
Research of System Design and Signal Processing for Detecting Carbon Dioxide Concentration
李昌锋 1沙洪1
作者信息
- 1. 中国医学科学院,北京协和医学院生物医学工程研究所,天津,300192
- 折叠
摘要
Abstract
Objective To research a system for detecting real-time carbon dioxide concentration,which is based on NDIR principle. Methods The sensor gas chamber designed by using mainstream integration method equipS with a single Source and double light paths. ADμC7026,as the main control chip,was used for the whole hardware system control. Temperature compensation,parameters calibration and data mapping were used for signal processing by making use of resource superiority and data processing advantage of ADμC7026. Results With the proof of experimental results,the system had good performance of stability,rapid response,high accuracy and small fundamental error. Conclusion This system is competent in the real-time carbon dioxide concentration detection as well as parameters calculation and also could provide intuitive reference information of symptoms in patients for doctors.关键词
呼气末二氧化碳检测/主流式一体化/ADμC7026/温度补偿/基线跟踪Key words
ETCO2 detection /mainstream integration method / ADμC7026 / temperature compensation /baseline tracking分类
医药卫生引用本文复制引用
李昌锋,沙洪..医用CO2浓度检测系统设计及信号处理方法研究[J].现代检验医学杂志,2011,26(3):23-26,4.
