Impact of Combined Stimuli on the Perception of Transient Forces

摘要

This paper discusses the development and characterization of a system for replicating the sensation of object-hand collisions. We present a novel wearable haptic band, comprised of a C2 tactor voice coil actuator and a servo-powered pressing mechanism. A virtual reality simulation in which a user actively bounces a ball on the hand was synced with the vibrations from a C2 tactor and pressure from a servo motor. User studies were conducted to determine the just-noticeable difference of pressure stimuli and realism of impact events with and without vibrations during the rendering of transient forces. We found that the presence of vibration reduced the just-noticeable difference of pressure, and that the addition of a constant vibration feedback to pressure appears to have more of an impact on the perception of the lower pressure levels than the higher pressure levels. These results indicate important considerations for the design of future devices that render transient haptic forces.