抄録
This paper introduces reproduction of the sensation, which is a sense of roughness, friction, or variegated texture of an object's surface, using surface acoustic wave (SAW). The principle and control of the SAW tactile display are also described. In the principle, a pulse modulated driving voltage excites temporal distribution of standing SAW. The distribution generates friction shift on the surface of a stator transducer substrate during operators' rubbing motion. To control the indicated tactile sensation, the switching is controlled according to the rubbing motion. Although the SAW on the stator surface (SAW substrate surface) can change the friction force between its surface and the slider, a relationship between the friction force and vibration amplitude is unclear. This paper reports fabrication of an experimental apparatus to measure the friction and the relationship.
