Title :

Enhancing Variable Friction Tactile Display using an ultrasonic travelling wave

Author(s) :

Ghenna, Sofiane [Auteur]
Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 [L2EP]
Vezzoli, Eric [Auteur]
Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 [L2EP]
Méthodes et outils pour l'Interaction à gestes [MINT2]
Giraud-Audine, Christophe [Auteur]
Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 [L2EP]
Giraud, Frédéric [Auteur]
Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 [L2EP]
Amberg, Michel [Auteur]
Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 [L2EP]
Semail, Betty [Auteur]
Méthodes et outils pour l'Interaction à gestes [MINT2]
Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 [L2EP]

Journal title :

IEEE Transactions on Haptics (ToH)

Pages :

296 - 301

Publisher :

IEEE

Publication date :

2016-09-08

ISSN :

1939-1412

English keyword(s) :

Travelling wave
Friction Modulation
Tactile stimulator and display
Probes
Surface Waves
Acoustics
Transducers
Friction
Force
Vibrations

HAL domain(s) :

Sciences de l'ingénieur [physics]

English abstract : [en]

In Variable Friction Tactile Displays, an ultrasonic standing wave can be used to reduce the friction coefficient between a user’s finger sliding and a vibrating surface. However, by principle, the effect is limited by a ...
Show more >In Variable Friction Tactile Displays, an ultrasonic standing wave can be used to reduce the friction coefficient between a user’s finger sliding and a vibrating surface. However, by principle, the effect is limited by a saturation due to the contact mechanics, and very low friction levels require very high vibration amplitudes. Besides, to be effective, the user’s finger has to move. We present a device which uses a travelling wave rather than a standing wave. We present a control that allows to realize such a travelling wave in a robust way, and thus can be implemented on various plane surfaces. We show experimentally that the force produced by the travelling wave has two superimposed contributions. The first one is equal to the friction reduction produced by a standing of the same vibration amplitude. The second produces a driving force in the opposite direction of the travelling wave. As a result, the modulation range of the tangential force on the finger can be extended to zero and even negative values. Moreover, the effect is dependant on the relative direction of exploration with regards to the travelling wave, which is perceivable and confirmed by a psycho-physical study.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

• Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189

Source :

Harvested from HAL