Title:
流体内で動作するように最適化された機械共振器
Document Type and Number:
Japanese Patent JP7225087
Kind Code:
B2
Abstract:
A resonator includes a prong of which the width between edges is close to λ/2. The pressure variation at one edge is then in phase opposition with that at the other edge. Acoustic coupling with an incident wave having the wavelength is thus improved. The ratio between the width between edges and the height of the prong is chosen so that only the fundamental mode with bending oscillation of the prong is present. It to prongs of a tuning fork embedded in a solid shared base optimized to contain the energy in the tuning fork while avoiding energy losses in the support. Finally, the tuning fork is advantageously combined with a unit for containing acoustic energy including a rigid reflecting screen.
Inventors:
Austou, Guillaume
Boujut, Beatrice
Levi, Rafael
Lutalon, Olivier
Dani, Janio
Boujut, Beatrice
Levi, Rafael
Lutalon, Olivier
Dani, Janio
Application Number:
JP2019503697A
Publication Date:
February 20, 2023
Filing Date:
July 06, 2017
Export Citation:
Assignee:
Office National Detude Educerche Aerospatiale
International Classes:
H03H9/24; B81B3/00; G01N29/036
Domestic Patent References:
| JP2146598A | ||||
| JP2009271053A | ||||
| JP2013521504A | ||||
| JP63063736U |
Foreign References:
| US20050117155 | ||||
| US20130199265 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK
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