Modeling of Acoustic Resonance in Spherical Resonators for the Precision Determination of Thermodynamic Temperature

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 differe...

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Bibliographic Details
Published in:Measurement techniques 2015-04, Vol.58 (1), p.50-58
Main Authors: Kytin, V. G., Kytin, G. A.
Format: Article
Language:English
Subjects:
Acoustic resonance
Acoustics
Analysis
Analytical Chemistry
Boundary conditions
Characterization and Evaluation of Materials
Gases
Heat conductivity
Holes
Mathematical models
Measurement Science and Instrumentation
Measurement techniques
Oscillations
Physical Chemistry
Physics
Physics and Astronomy
Resonance lines
Resonators
Studies
Temperature
Thermodynamics
Velocity
Walls
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Summary: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.
ISSN:0543-1972
1573-8906
DOI:10.1007/s11018-015-0662-x