The influence of viscothermal effects on calibration measurements in a tube

J.W. van Honschoten, H.E. de Bree, F.J.M. van der Eerden, Gijsbertus J.M. Krijnen

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    The Microflown, a novel acoustic flow sensor that is capable of measuring particle velocity in a fluid, can easily and accurately be calibrated in a standing-wave tube. This calibration method in the standing-wave tube is generally most favorable. Even very low frequencies can be measured with this simple setup. It is, therefore, important to analyze the limits of validity of the calibration method. In this paper the effects of the viscous and thermal properties of the fluid on the measurements of the transfer function, when calibrating sensors, are considered. It is shown both theoretically and experimentally for the broad-frequency spectrum that these viscothermal effects are relatively small.
    Original languageUndefined
    Title of host publicationProceedings AES Conference
    Place of PublicationLos Angeles, CA, USA
    Number of pages7
    Publication statusPublished - 22 Sept 2000
    Event109th Audio Engineering Society (AES) Convention 2000 - Los Angeles Convention Center, Los Angeles, United States
    Duration: 22 Sept 200025 Sept 2000


    Other109th Audio Engineering Society (AES) Convention 2000
    Country/TerritoryUnited States
    CityLos Angeles


    • METIS-113078
    • IR-58816

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