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聚焦反射超声波使用边界元素模型进行中空触觉呈现.

Atsushi Matsubayashi, Kanta Shiku, Yasutoshi Makino

    IEEE transactions on haptics
    |June 9, 2023
    PubMed
    概括

    这项研究引入了一种用于超声波聚焦的新方法,使用曲反射器进行空中触觉反. 该技术可以在没有事先校准的情况下实现精确的实时触觉,提高焦点强度,并允许新的触觉应用.

    科学领域:

    • 声学 声学 在声学方面
    • 触觉学是指触觉学,是指触觉学.
    • 波浪物理学的波浪物理.

    背景情况:

    • 使用超声波的空中触觉呈现提供了诸如多方向感应和减少传感器阵列冲突等优势.
    • 以前的超声波聚焦用曲面反射器的方法通常需要广泛的先前测量,缺乏实时适应性.

    研究的目的:

    • 提出一种用于聚焦反射超声波的新方法,使用曲面来增强中空触觉反.
    • 为了实现对任意位置的实时聚焦,而无需预测传感器响应.
    • 通过将目标对象特征集成到建模中来提高焦点强度.

    主要方法:

    • 解决一个元素分割反射器上的声音场的边界积分方程.
    • 制定传感器输入和反射声场之间的关系,用于实时控制.
    • 将触觉呈现的目标对象纳入边界元素模型以增强焦点强度.

    主要成果:

    • 通过使用数值模拟和实验测量,证明了成功地从半球圆顶对超声波进行聚焦.
    • 验证了拟议方法在所需位置实现聚焦超声波的能力.
    • 确定了可以通过数值分析产生足够重点强度的区域.

    结论:

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    • 拟议的边界积分方程方法有效地实现了超声波聚焦,使用曲线反射器进行空中触觉呈现.
    • 这种方法允许实时,可适应的触觉反,而不需要单独的传感器校准.
    • 该方法显示了创造更具身临其境和精确触觉体验的潜力.