Tap tactile presentation by airborne ultrasound

Abstract: The airborne ultrasound tactile display can present tactile information without direct contact. Using this technology, we developed two methods for simulating the tactile sensation of tapping an object with a finger: the Amplitude Modulation Method and the Lateral Modulation Method. The first method, Amplitude Modulation, simulates the tactile sensation of tapping a soft, deformable surface, like a deflated balloon. The second method, Lateral Modulation, simulates the tactile sensation of a rigid surface that easily resonates with vibrations, like a cymbal. In the demonstration, participants can experience the difference between these two tactile stimuli by tapping virtual objects displayed on a screen.