Evaluation of Multi-Point Dynamic Pressure Reproduction Using Microphone-Based Tactile Sensor Array

An airborne ultrasound tactile display (AUTD) is a non-contact tactile display that can reproduce arbitrary pressure distribution, but research on the fidelity of its tactile feel is still insufficient. This study aims at the development of tactile reproduction system by AUTD, and we designed a tactile sensor composed of 4×4 ch microphone array in this paper. In addition, the basic performance as a tactile reproduction system was evaluated by reproducing the pressure by AUTD based on the simulated pressure distribution recorded by the sensor.