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Evaluation of a constant-temperature hot-wire anemometer for respiratory-gas-flow measurements

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Abstract

The performance of a constant-temperature hot-wire anemometer for respiratory-gas-flow measurement has bee investigated. It is shown that the anemometer satisfies common demands with respect to accuracy, response time and to insensitivity to humidity and temperature variations. A calibration method is suggested that permits correction for variation of the flowmeter signal caused by changes of the gas composition. Finally, a procedure for linearisation of the flowmeter signal as a function of flow rate is presented.

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Authors and Affiliations

  1. Department of Physiology, University of Odense, Campusvej 55, DK 5230, Odense M, Denmark

    J. S. Lundsgaard, J. Grønlund & N. Einer-Jensen

Authors
  1. J. S. Lundsgaard
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  2. J. Grønlund
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  3. N. Einer-Jensen
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Lundsgaard, J.S., Grønlund, J. & Einer-Jensen, N. Evaluation of a constant-temperature hot-wire anemometer for respiratory-gas-flow measurements. Med. Biol. Eng. Comput. 17, 211–215 (1979). https://doi.org/10.1007/BF02440931

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  • DOI: https://doi.org/10.1007/BF02440931

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