Two-dimensional Active Type Surface Acoustic Wave Tactile Display On a Computer Screen
Two-dimensional Active Type Surface Acoustic Wave Tactile Display On a Computer Screen
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DOI：
10.1109/vr.2006.136
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发表时间：
2006-03
期刊：
影响因子：
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通讯作者：
M. Takasaki;H. Kotani;T. Mizuno;T. Nara
中科院分区：
文献类型：
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作者：
M. Takasaki;H. Kotani;T. Mizuno;T. Nara
我们已经提出了一种利用表面声波（SAW）提供人体触觉的新方法。脉冲调制的驱动电压激发了驻声SAW的时间分布。这种分布会在SAW衬底表面产生摩擦位移。当手指通过滑块探测带有爆裂SAW的表面时，摩擦位移会产生类似于手指上的粘滑振动的机械振动。这种振动可以在手指皮肤的机械感受器上被感知为触觉。根据测量到的摩擦运动来控制爆发频率，可以增强显示感觉的真实感。在本研究中，我们将带有透明定子传感器的触觉显示器安装在计算机屏幕上。二维摩擦运动可用于显示。实验制作了一种带有手指动作捕捉系统的实验装置，并根据捕捉到的动作进行控制。在演示中，操作人员可以在显示器下摩擦一个固体标记，通过触觉识别其形状。
We have already proposed a novel method to provide human tactile sensation using surface acoustic wave (SAW). A pulse modulated driving voltage excites temporal distribution of standing SAW. The distribution generates friction shift on the surface of a SAW substrate. When the surface with the burst SAW is explored through a slider by a finger, the friction shift generates a mechanical vibration similar to a stick-slip vibration on the finger. The vibration can be perceived as tactile sensation at mechanoreceptors in the finger skin. Controlling the burst frequency according to measured rubbing motion, reality of the displayed sensation can be enhanced. In this research, we install the tactile display with a transparent stator transducer on a computer screen. Two-dimensional rubbing motion is available for the display. An experimental apparatus with finger motion capture system is fabricated on trial and controlled according to the captured motion. In a demonstration, operators can rub on a solid mark under the display to recognize its shape through tactile sensation.