Abstract
A glove-shaped simple force feedback system to display hardness of virtual object was developped. The principal design was to apply reaction force on fingertips of thumb and index finger by using two wires driven by position-servo-controlled DC-motors. The joint torque to PIP and MP joints was applied with single wire but at appropriate torque distribution ratio by optimizing the structure of the glove system. The performance of the system was evaluated through distinguish test in 12 volunteer subjects. The average cognitive rate at four levels of hardness was 73%.
