Abstract
The results of simulation and experimental study of resonant properties of membranes for acoustic receivers are presented. The simulation is performed in the Comsol Multiphysics (Acoustic Solid Interaction, Frequency Domain) software package. The frequency response of rectangular membranes 8 × 8 × 0.05 mm3 in size, made of single-crystal silicon is determined. The operation of the constructed model is verified. It is found that the calculated and experimentally measured resonant frequencies of the membrane are consistent. It is shown that the acoustic receiver sensitivity can be significantly improved by varying the membrane fixture conditions while retaining its geometrical sizes.
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Funding
This study was supported by the Russian Science Foundation (project no. 19-12-00323). Membrane fabrication was supported by the Russian Foundation for Basic Research, project no. 20-37-90087.
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Translated by A. Kazantsev
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Efimov, T.A., Rassolov, E.A., Kulchin, Y.N. et al. Calculation of Vibrations of Silicon Membranes for an Acoustic Receiver. Bull. Lebedev Phys. Inst. 49, 78–82 (2022). https://doi.org/10.3103/S1068335622030034
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DOI: https://doi.org/10.3103/S1068335622030034