触知覚過程における指に働く接触面内外力の働きに関する実験的考察

概要

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The role of the tangential force acting upon the finger during tactile perception was experimentally studied. Although the tangential force is usually dealt in regard to the smoothness of the surface and the sensation of a protrusion is often related to the stimulus in normal direction in haptic interface, we believe that the tangential force is indispensable to generate the sensation of a protrusion. We performed the experiment using a virtual protrusion for the investigation. The virtual protrusion is the sensation, as if there is a protrusion on the fiat surface, generated by using ultrasonic vibration. The experiments using five to ten subject showed that the sensation of the virtual protrusion is dosely related to the vibration conditions. Based on the experimental results, the mechanism of generating the sensation was dynamically analyzed. The results showed that the tangential force is important to perceive a protrusion clearly although the tangential force cannot make the sensation of a protrusion alone.
社団法人日本機械学会の論文
1999-07-25