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Automatic Correction for the Effects of Changing Gas Viscosity in Pneumotachographic Measurements

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Computers in Critical Care and Pulmonary Medicine

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Abstract

Pneumotachography is still one of the most exact methods of measuring respiratory flow rate and volume. Changes in the measured pressure difference of the pneumotachograph are due to changes in gas flow as well as gas viscosity. Therefore, for exact flow measurements, the calibration of the pneumotachograph must be perfored under the same conditions (i.e. same gas mixture and same gas temperature) as during the measurement. In the present paper, a method for automatic continuous calibration of the pneumotachograph during measurements with changing gas composition is described and tested for reproducibility and accuracy.

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References

  1. G. Barres, and P. Gauge, Etude par le spirogramme electrique de l’ influence de 1 etat physique du gaz sur le fonctionement du pneumotachographe de Fleisch, J. Physiologie. 51., 589, 1961.

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Author information

Authors and Affiliations

  1. Zentrum Anaesthesiologie, Klinikum der Universitaet, Robert-Koch-Str. 40, D-3400, Goettingen, Germany

    H. Burchardi, T. Stokke & W. Ohrdorf

Authors
  1. H. Burchardi
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  2. T. Stokke
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  3. W. Ohrdorf
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Editor information

Editors and Affiliations

  1. Yale University School of Medicine, Norwalk, Connecticut, USA

    Sreedhar Nair (Chairman) (Chairman)

  2. Erasmus University, Rotterdam, The Netherlands

    Omar Prakash (Co-Chairman) (Co-Chairman)

  3. University of Bridgeport, Bridgeport, Connecticut, USA

    Richard P. Imbruce

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© 1983 Plenum Press, New York

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Burchardi, H., Stokke, T., Ohrdorf, W. (1983). Automatic Correction for the Effects of Changing Gas Viscosity in Pneumotachographic Measurements. In: Nair, S., Prakash, O., Imbruce, R.P. (eds) Computers in Critical Care and Pulmonary Medicine. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-4403-2_13

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  • DOI: https://doi.org/10.1007/978-1-4684-4403-2_13

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4684-4405-6

  • Online ISBN: 978-1-4684-4403-2

  • eBook Packages: Springer Book Archive

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