Generating controlled localized stimulations on haptic displays by modal superimposition
Article dans une revue avec comité de lecture
Date
2019Journal
Journal of Sound and VibrationRésumé
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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Documents liés
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Communication avec acteNADAL, Clément; GIRAUD, Frédéric; AMBERG, Michel; LEMAIRE-SEMAIL, Betty;
GIRAUD-AUDINE, Christophe (IEEE, 2014)
This paper deals with an unidimensional analytical modelling of the vibratory behaviour of a rectangular beam excited by several piezoelectric ceramics glued on its lower face. The establishment of the equations of motion ... -
Article dans une revue avec comité de lecture
GIRAUD-AUDINE, Christophe; GIRAUD, Frédéric; AMBERG, Michel; LEMAIRE-SEMAIL, Betty (IOP Publishing, 2015)
Stress in a piezoelectric material can be controlled by imposing an electrical field. Thanks to feedback, this electrical field can be a function of some strain-related measurement so as to confer on the piezoelectric ... -
Communication avec acteGHENNA, Sofiane; GIRAUD, Frédéric; AMBERG, Michel; LEMAIRE-SEMAIL, Betty;
GIRAUD-AUDINE, Christophe (IEEE, 2015)
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. ... -
Communication avec acteGHENNA, Sofiane; GIRAUD, Frédéric; AMBERG, Michel; LEMAIRE-SEMAIL, Betty;
GIRAUD-AUDINE, Christophe (IEEE, 2015)
The control of the vibration amplitude, and the resonance frequency tracking for ultrasonic transducer have been established. However, some applications require to control the vibration amplitude and its relative phase at ... -
Communication avec acteGHENNA, Sofiane; GIRAUD, Frédéric; AMBERG, Michel; LEMAIRE-SEMAIL, Betty;
GIRAUD-AUDINE, Christophe (IEEE, 2015)
This paper presents a new method to produce and control the vibration amplitude and direction of a travelling wave in a finite beam, using multi-modal approach. A closed loop control of the transducer vibration is applied ...