A procedure for modeling the acoustic resonance lines in spherical resonators, filled with an inert gas, is developed. The method is based on a calculation of the amplitude and phase of the forced oscillations of a gas in a spherical cavity. The theoretical resonance lines are calculated for different gas pressures and temperatures, and the effect of acoustic converters and holes in the resonator wall on the resonance lines is analyzed. The calculated frequency dependences of the acoustic signal are compared with those measured on an experimental sample of a spherical resonator filled with gaseous helium.
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This research was supported by the Russian Technical Regulation (State Contract No. 120–376).
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Translated from Izmeritel’naya Tekhnika, No. 1, pp. 35–39, January, 2015.
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Kytin, V.G., Kytin, G.A. Modeling of Acoustic Resonance in Spherical Resonators for the Precision Determination of Thermodynamic Temperature. Meas Tech 58, 50–58 (2015). https://doi.org/10.1007/s11018-015-0662-x
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DOI: https://doi.org/10.1007/s11018-015-0662-x