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Causality Inversion in the Reproduction of Roughness

By Michaël Wiertlewski, José Lozada, Edwige Pissaloux and Vincent Hayward

Abstract

Abstract. When a finger scans a non-smooth surface, a sensation of roughness is experienced. A similar sensation is felt when a finger is in contact with a mobile surface vibrating in the tangential direction. Since an actual finger-surface interaction results in a varying friction force, how can a measured friction force can be converted into skin relative displacement. With a bidirectional apparatus that can measure this force and transform it into displacement with unambiguous causality, such mapping could be experimentally established. A pilot study showed that a subjectively equivalent sensation of roughness can be achieved betweem a fixed real surface and a vibrated mobile surface

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Year: 2010
OAI identifier: oai:CiteSeerX.psu:10.1.1.170.4820
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