Presentation of pulling illusion using push-pull driven solenoids and current control

Abstract

When humans are presented asymmetric vibrations having an acceleration that changes momentarily and an acceleration that changes slowly in the opposite direction to humans fingertips, humans have illusion of being pulled in one direction even though the force works in two directions. This illusion is called pulling illusion. It is expected to apply walking support system and feedback of force sense VR system. Several devices which cause pulling illusion is reported, but input parameters are different each devices. We must design current wave considering vibration characteristics because of this reason. In this research, we developed the device that generates asymmetric vibrations by using suction force generated by push-pull driven solenoids, and controlled the generated force by the electric current. In the experiment, Asymmetric vibration was generated by imputing an asymmetric current waveform from the function generator, and 7 men joined the experiment. As a result, we confirmed pulling illusion.