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Preliminary design of a multi-touch ultrasonic tactile stimulator

Archive ouverte : Communication dans un congrès

Ghenna, Sofiane | Giraud, Frédéric | Giraud-Audine, Christophe | Amberg, Michel | Lemaire-Semail, Betty

Edité par HAL CCSD

International audience. — This paper presents a method to control ultrasonic waves on a beam, allowing to obtain a Multi-touch ultrasonic tactile stimulation in two points, to give the sensation to two fingers, from two piezoelectric transducers. The multi-modal approach and the vector control method are used to regulate the vibration amplitude, in order to modulate the friction coefficient with the fingers. An analytical modelling is presented, with experimental validation. Finally a psychophysical experiment shows that a multi-touch ultrasonic tactile stimulation is possible .

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