DocumentCode
1214059
Title
Airflow Perturbation Device for Measuring Airways Resistance of Humans and Animals
Author
Johnson, Arthur T. ; Lin, Chin-Shing ; Hochheimer, John N.
Author_Institution
Department of Agricultural Engineering, University of Maryland
Issue
9
fYear
1984
Firstpage
622
Lastpage
626
Abstract
This communication introduces the airflow perturbation device (APD) as a means for measuring airways resistance in humans and animals The APD uses a rotating screen to perturb airflow during spontaneous breathing. The resultant mouth pressure perturbation amplitudes are divided by flow rate perturbation amplitudes to give airways resistance. Data shown for both humans and swine demonstrate values to be in the correct magnitude range, and to reflect changes in flow rate and direction.
Keywords
Animals; Biomedical measurements; Biomedical transducers; Electrical resistance measurement; Humans; Immune system; Mouth; Pollution measurement; Pressure measurement; Rotation measurement; Airway Resistance; Animals; Humans; Mathematics; Models, Biological; Plethysmography, Whole Body; Respiratory Function Tests; Swine;
fLanguage
English
Journal_Title
Biomedical Engineering, IEEE Transactions on
Publisher
ieee
ISSN
0018-9294
Type
jour
DOI
10.1109/TBME.1984.325306
Filename
4121910
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