Preliminary design of a multi-touch ultrasonic tactile stimulator
Communication avec acte
Auteur
GHENNA, SofianeGIRAUD, FrédéricAMBERG, MichelLEMAIRE-SEMAIL, Betty 
GIRAUD-AUDINE, ChristopheRésumé
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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Communication avec acte; ; ; ;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 ...
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Communication avec acte; ; ; ;GIRAUD-AUDINE, Christophe (IEEE, 2017)
The multimodal control of a 2D controlled-Friction Device is presented. We use the Vector control method because the phase and amplitude of two vibration modes at a same frequency can be precisely set. The closed loop ...
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Communication avec acte; ; ; ;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 ...
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Communication avec acte; ; ; ;GIRAUD-AUDINE, Christophe (2018)
To date, Several focusing techniques have been proposed to realize localized stimulation on haptic interfaces: phased arrays of actuators with delayed excitation, or time reversal techniques which require a preliminary ...
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Article dans une revue avec comité de lecture; ; ;GIRAUD-AUDINE, Christophe (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 ...