振動合成による仮想力覚提示装置の多方向化

抄録

The pseudo-haptic presentation device is a device that presents the force sense illusion in the front and rear directions by causing the linear actuator to perform asymmetric vibration with a biased duty ratio. The purpose of this paper is to increase the degree of freedom of directionality of pseudo-haptics. In this paper, we develop the device that fixed multiple actuators perpendicular to each other and make 2-dimensional the direction of pseudo-haptics by vibration synthesis. By synchronizing the frequencies and phases of the two asymmetric vibrations and clarifying the arrangement method of the actuators for synthesizing the vibrations, synthetic vibrations maintaining the direction were generated. In addition, since the haptic perception is adversely affected by the direction of vibration stimulation with respect to the skin, we have improved to a device using four actuators and conducted an 8-direction discrimination experiment to develop a device with a higher rate of correct responses.