A New Design of Texture Haptic Display System

In this paper, it is proposed that a new design of texture haptic display system consisting of a rotating cylinder that evokes a virtual touch sensation of texture surfaces contacted to the user´s finger. Small holes, which simulate different surface texture with different rotating speed, are drilled on the cylinder made of aluminum alloy. The user places his or her finger on a small window and moves back and forth while feeling slip. By applying various rotating speed, various friction distributions can be generated on the skin, which are transferred to the fingertip as to generate surface roughness sensation in the subject´s nerve system. Through doing some experiments, every user´s feeling is got together under different circumstances, and then the principle of the device and some simple experimental results are reported.