作为新兴的人机交互技术,触觉再现技术能够再现虚拟物体的表面特性,提高虚拟现实系统的真实性。在目前现有的触觉再现技术中,基于摩擦力控制的触觉再现技术能够实现连续的、精细的纹理触觉再现,已成为触觉再现领域的一个研究热点。因此,设计一套基于摩擦力控制的触觉再现系统就显得尤为重要。基于此,文中利用空气压膜效应原理,设计了一套基于摩擦力控制的触觉再现系统,该系统能够实现虚拟纹理的触觉输出。文中首先描述了空气压膜效应的产生机理,然后详细讲述了该触觉再现系统的整体构成,最后,通过一系列的触觉感知实验验证了该系统的有效性。
As a novel human-computer interaction technology,tactile rendering can express the surface characteristics of virtual objects, and enhance the realism of virtual reality systems. Among several tactile rendering technologies,friction control based technology can real-ize continuous and fine tactile perception,and has become a hot research in tactile rendering filed. Therefore,designing a tactile rendering system,which based on the friction control,is particularly important. Based on this,present a tactile rendering device in this paper based on friction control,by using the principle of squeeze film effect. Firstly,describe the mechanism of squeeze film effect. Then,demonstrate the whole structure of this system and several experiments are made to validate the effectiveness of this system at last.