Information display by dragged haptic bumps

Abstract : The utility of haptic interfaces is widely established now. Although many interfaces has been designed, few tests about immediate usability have been made. The purpose of this paper is a study of direction and amplitude discrimination when a user feels a bump while moving the hand along an axis with an haptic pointing device. The results show that users can discriminate two and four directions with few errors while using one amplitude. But in the case of two or three amplitudes, some users have difficulties. The amplitude discrimination is more problematic. With only two amplitudes some users don't manage to discriminate the bumps, and with three amplitudes most of them make a lot of errors.
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Thomas Pietrzak, Benoît Martin, Isabelle Pecci. Information display by dragged haptic bumps. Proceedings of the Enactive conference (Enactive 2005), Oct 2005, Genoa, Italy. ⟨hal-01821236⟩

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