Noncontact Tactile Display Based on Radiation Pressure of Airborne Ultrasound
Noncontact Tactile Display Based on Radiation Pressure of Airborne Ultrasound
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DOI：
10.1109/toh.2010.4
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发表时间：
2010-07-01
影响因子：
2.9
通讯作者：
Shinoda, Hiroyuki
中科院分区：
文献类型：
--
作者：
Hoshi, Takayuki;Takahashi, Masafumi;Shinoda, Hiroyuki
本文介绍了一种触觉显示器，它提供了不受限制的触觉反馈在空气中没有任何机械接触。它控制超声波并在3D空间中产生应力场。该原理基于超声的非线性现象：声辐射压力。制造的原型由324个机载超声换能器组成，每个换能器的相位和强度被单独控制以产生焦点。焦点处的直流输出力为16 mN，焦点直径为20 mm。原型产生的振动高达1 kHz。还介绍了一个包括原型的交互系统，它使用户能够看到和触摸虚拟对象。
This paper describes a tactile display which provides unrestricted tactile feedback in air without any mechanical contact. It controls ultrasound and produces a stress field in a 3D space. The principle is based on a nonlinear phenomenon of ultrasound: Acoustic radiation pressure. The fabricated prototype consists of 324 airborne ultrasound transducers, and the phase and intensity of each transducer are controlled individually to generate a focal point. The DC output force at the focal point is 16 mN and the diameter of the focal point is 20 mm. The prototype produces vibrations up to 1 kHz. An interaction system including the prototype is also introduced, which enables users to see and touch virtual objects.