Local Area Tactile Stimulation Using Interference of Multi-Frequency Airborne Ultrasound.

IF 2.4 3区计算机科学 Q2 COMPUTER SCIENCE, CYBERNETICS IEEE Transactions on Haptics Pub Date : 2024-06-18 DOI:10.1109/TOH.2024.3416333

Saya Mizutani, Shun Suzuki, Atsushi Matsubayashi, Masahiro Fujiwara, Yasutoshi Makino, Hiroyuki Shinoda

引用次数: 0

Abstract

In spatiotemporal modulation (STM) and lateral modulation (LM) used in conventional mid-air ultrasound tactile stimulation, single or multiple focuses are moved by switching the ultrasound transducer phases. A problem with the phase switching method is the limitation of the focus motion speed due to rapid phase switching that causes sound pressure fluctuations. This paper proposes an LM method using multiple-frequency ultrasound to shift the ultrasound focal point without switching the phase. This method can demonstrate a continuous and stable moving stimulus with high-frequency components, without producing unnecessary audible noise. Using the proposed broadband LM covering up to 400 Hz, we found that a high-frequency 400 Hz LM applied at a finger pad can display a stimulation area with the diameters comparable to or less than the half wavelength of 40 kHz ultrasound, where the perceptual size was evaluated as 4. 2 mm for the long axis diameter and 3. 4 mm for the short axis diameter.

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利用多频机载超声波干扰进行局部触觉刺激

在传统的中空超声触觉刺激中使用的时空调制（STM）和横向调制（LM）中，通过切换超声换能器的相位来移动单个或多个病灶。相位切换法的一个问题是，由于快速的相位切换会导致声压波动，从而限制了病灶的移动速度。本文提出了一种使用多频超声波的 LM 方法，可在不切换相位的情况下移动超声波焦点。这种方法能显示出具有高频成分的连续稳定的移动刺激，而不会产生不必要的可听噪音。我们发现，在指垫上应用高频 400 Hz LM，可显示出直径与 40 kHz 超声波半波长相当或更小的刺激区域。4 毫米。

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.