Causality Inversion in the Reproduction of Roughness

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. Key words: Roughness simulation; Haptic devices; Virtual reality.

• Type: Conference
• Year: 2010
• Where: HAPTICS
• Authors: Michael Wiertlewski, José Lozada, Edwige Pissaloux, Vincent Hayward
• Keywords: Friction Force, HAPTICS 2010, Mobile Surface, Roughness