弾性波動を用いた皮膚感覚ディスプレイ

概要

論文の詳細を見る
As a basis for tactile display, it is important to understand the mechanism of tactile sensation. So, we analyze elastic waves inside a finger in tactile exploration with a two-layered, half-infinite elastic finger model, and derive a mapping from finger surface displacements to mechanoreceptors displacements. It is shown that this mapping is a one-to-one mapping. Therefore, it is necessary to create the same finger surface displacement as in actual exploration for tactile virtual reality(VR). However, the mapping from objects shapes to finger surface displacements is shown to be a many-to-one mapping because of the mechanical property of skin. So, we use the envelope of the amplitude-modulated Lamb wave on an elastic plate as an alternative shape to the real object, because its shape is easily controlled. The generation of the wave is confirmed with anexperimental device of silicon rubber vibrated by voice coils.
日本バーチャルリアリティ学会,東京大学大学院工学系研究科の論文