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Generating controlled localized stimulations on haptic displays by modal superimposition

Archive ouverte : Article de revue

Enferad, Ehsan | Giraud-Audine, Christophe | Giraud, Frédéric | Amberg, Michel | Lemaire Semail, Betty

Edité par HAL CCSD ; Elsevier

International audience. In the field of tactile feedback, researchers try to generate localized stimulations on screens. Some solutions such as time reversal or phased array use vibration induced in the screen equipped with piezoelectric ceramics. We propose to use the modal basis to reproduce a specified velocity field on such devices. We explain the theory and propose a methodology to practically synthesize the voltages to achieved a controlled focusing in a given time. Experiments on a simple demonstrator are in good agreement with the theory for various velocity fields and a reduced number of modes.

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