Electroacoustic device for manipulating objects in a liquid
AssigneesUniversite De Lille, Centrale Lille Institut, Universite Polytechnique Hauts-De-France, Centre National De La Recherche Scientifique, Yncrea Hauts De France, Sorbonne Universite
InventorsMichaël Boudoin, Jean-Louis Thomas, Antoine Riaud, Olivier Boumatar
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Abstract
An electroacoustic device for generating an acoustic wave includes: a piezoelectric substrate; first electrodes arranged on the piezoelectric substrate, each first electrode including first tracks that spiral around a spiral axis in a first winding direction; and second electrodes arranged on the piezoelectric substrate, each second electrode including second tracks that spiral around the spiral axis in a second winding direction opposite to the first winding direction.
Claims16
An electroacoustic device for generating an acoustic wave, comprising:
- a piezoelectric substrate;
- first electrodes arranged on the piezoelectric substrate, each first electrode comprising first tracks;
- and
- second electrodes arranged on the piezoelectric substrate, each second electrode comprising second tracks, wherein,
- the first tracks spiral around a spiral axis in a first winding direction, and
- the second tracks spiral around the spiral axis in a second winding direction opposite to the first winding direction.
Dependencies are inferred from the claim text.