硬軟感知覚に対する表面粗さ効果に関する研究(第2報 触動作解析)

抄録

In this paper, influence of surface roughness on feeling of stiffness is investigated in term of touch motion. Five silicone samples, each of which has different surface roughness and the same hardness, were fabricated. Sensory evaluation on feeling of stiffness for the samples was conducted. In sensory evaluations, panelists evaluated stiffness of samples according to two kinds of instruction. One is that panelists evaluated the samples freely. The other is that panelists evaluated them with feeling the surface roughness. From the results of sensory evaluation, it was found that surface roughness obviously affected feeling of stiffness in the case of instruction that panelists evaluated them with feeling the surface roughness. During sensory evaluation, fingertip trajectories and contact force to the samples were measured. As a result, it was found that touch motions differ depending on the instructions for sensory evaluation.