UltLever: Ultrasound-Driven Passive Haptic Actuator Based on Amplifying Radiation Force Using a Simple Lever Mechanism

IF 2.4 3区计算机科学 Q2 COMPUTER SCIENCE, CYBERNETICS

IEEE Transactions on Haptics Pub Date : 2024-02-08 DOI:10.1109/TOH.2024.3363764

Tao Morisaki;Takaaki Kamigaki;Masahiro Fujiwara;Yasutoshi Makino;Hiroyuki Shinoda

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引用次数: 0

Abstract

A lightweight haptic display that does not interfere with the user's natural movement is required for an immersive haptic experience. This study proposes a lightweight, powerful, and responsive passive haptic actuator driven by airborne focused ultrasound. This 6.2 g completely plastic passive device amplifies an applied ultrasound radiation force by a factor of 35 using a simple lever mechanism, presenting an amplified force of 0.7 N to the user's finger pad. 2–30 Hz vibration can also be presented. Since the radiation force is presented at the speed of sound, the amplified force is presented at high speed even with the high amplification rate of a lever, achieving such strong force and vibration presentation. Physical measurements showed that the amplified force was 0.7 N for the 20.48 mN input radiation force, and the amplitude of the presented vibration was over 0.1 N at 2–30 Hz. A psychophysical experiment showed that the vibration and force were perceivable with a device output level of −7.7 dB. In the future, we will explore methodologies around device design to present desired tactile sensations.

查看原文本刊更多论文

UltLever：基于利用简单杠杆机制放大辐射力的超声波驱动被动触觉执行器

要想获得身临其境的触觉体验，就需要一种不会干扰用户自然运动的轻型触觉显示器。本研究提出了一种由空气聚焦超声波驱动的轻便、功能强大且反应灵敏的无源触觉致动器。这个重 6.2 克的全塑料无源装置通过一个简单的杠杆机制，将施加的超声辐射力放大 35 倍，为用户的指垫提供 0.7 牛的放大力。还可产生 2-30 Hz 的振动。由于辐射力是以音速产生的，因此即使杠杆的放大率很高，放大的力也是以高速产生的，从而实现了如此强大的力和振动效果。物理测量结果表明，输入 20 mN 的辐射力时，放大力为 0.7 N，而在 2-30 Hz 频率下，呈现的振动振幅超过 0.1 N。心理物理实验表明，在设备输出电平为 -7.7 分贝时，振动和力是可感知的。未来，我们将探索围绕设备设计的方法，以呈现所需的触觉感受。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Haptics COMPUTER SCIENCE, CYBERNETICS-

CiteScore

5.90

自引率

13.80%

发文量

109

审稿时长

>12 weeks

期刊介绍： IEEE Transactions on Haptics (ToH) is a scholarly archival journal that addresses the science, technology, and applications associated with information acquisition and object manipulation through touch. Haptic interactions relevant to this journal include all aspects of manual exploration and manipulation of objects by humans, machines and interactions between the two, performed in real, virtual, teleoperated or networked environments. Research areas of relevance to this publication include, but are not limited to, the following topics: Human haptic and multi-sensory perception and action, Aspects of motor control that explicitly pertain to human haptics, Haptic interactions via passive or active tools and machines, Devices that sense, enable, or create haptic interactions locally or at a distance, Haptic rendering and its association with graphic and auditory rendering in virtual reality, Algorithms, controls, and dynamics of haptic devices, users, and interactions between the two, Human-machine performance and safety with haptic feedback, Haptics in the context of human-computer interactions, Systems and networks using haptic devices and interactions, including multi-modal feedback, Application of the above, for example in areas such as education, rehabilitation, medicine, computer-aided design, skills training, computer games, driver controls, simulation, and visualization.