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Generating controlled localized stimulations on haptic displays by modal superimposition

Article dans une revue avec comité de lecture
Author
ENFERAD, Ehsan
GIRAUD, Frédéric
AMBERG, Michel
LEMAIRE SEMAIL, Betty
ccGIRAUD-AUDINE, Christophe
13338 Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 [L2EP]

URI
http://hdl.handle.net/10985/15935
DOI
10.1016/j.jsv.2019.02.039
Date
2019
Journal
Journal of Sound and Vibration

Abstract

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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