Method for controlling at least one gas bubble produced in a localised manner
AssigneesCentre National De La Recherche Scientifique, Ecole Centrale De Marseille, Universite D'Aix-Marseille
InventorsYounes Achaoui, Serge Mensah, Zoubida Hammadi, Roger Claude Marcel Morin, Eric Debieu, Cédric Alain François Marie Payan
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Abstract
The invention concerns a method for controlling at least one gas bubble produced in a localised manner in a medium (3′) allowing the movement of said at least one gas bubble, characterised in that it comprises a step consisting of generating at least one ultrasound burst towards said at least one gas bubble, said at least one burst being emitted for a burst duration at least partially covering a duration during which said gas is effectively being produced.
Claims15
A method to control at least one gas bubble produced in localized manner in a medium allowing the displacement of a plurality of gas bubbles, said bubbles being produced by a first control signal of adjustable amplitude and/or frequency, said first control signal being generated by a voltage source connected to an electrode and a counter electrode so that gas is produced, said method comprising a step consisting of generating a plurality of ultrasound bursts towards said bubbles, said bursts being emitted over a burst length at least partly overlapping the duration of gas production,
- wherein locally produced gas bubbles are produced at a controlled frequency of production equal to the frequency of the first control signal, and
- wherein ultrasound bursts are generated at a repeat frequency equal to or substantially equal to the controlled frequency of localized production of the gas bubbles.
Dependencies are inferred from the claim text.