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정광태,윤한경 한국기술교육대학교 1998 論文集 Vol.5 No.1
Virtual Reality(VR) is the process of creating virtual environments that present the illusion of real physical events, however humans interact with the real world through their visual, auditory and tactile senses. The tactile perceptions are generally limited in conventional virtual reality system. Recently, several research organizations have been actively studying of haptic perceptions which were known as the force feedback or haptic display in the human computer interaction. Research of these areas include mechanical electrical and computational hardware, and softwares. The mechanical devices, which are known as the manipulandum, are the mechanical interface between the users and the virtual environment including the handle, linkages, actuators and sensors. The manipulandum represents the force feedback according to the users action using a complicate calculation such as the inverse dynamics, but it is very important that the VR system with tactile force feedback has to be shown the real time response. In this study as a preliminary experiment to develope an economical and reliable haptic display system using an application of modified techniques in the visual graphics. The result shows that the texture of surfaces can induce the different forces in terms of the acceleration at the perpendicular direction against the fingers motion. Therefore, there is possibility that the universal tactile model is developed.