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相关概念视频

Design Example: Resistive Touchscreen01:14

Design Example: Resistive Touchscreen

313
A device engineer plays a crucial role in designing user interfaces for mobile devices. One such interface is the resistive touchscreen, which fundamentally consists of two metallic layers: a flexible upper layer and a rigid lower layer, separated by a narrow gap. The high resistance between these two layers is a key characteristic of this design.
When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...
313

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一个多层叠加的微流体触摸显示器,具有高空间分辨率.

Boxue Shan, Congying Liu, Yuan Guo

    IEEE transactions on haptics
    |February 23, 2024
    PubMed
    概括

    研究人员使用多层管道结构开发了一种新的软微流体触摸显示器. 这项创新显著提高了执行器密度和分辨率,以获得详细的触觉反,改善了人机交互.

    科学领域:

    • 机器人技术 机器人技术 机器人技术
    • 微流体学 微流体学
    • 人与计算机的交互

    背景情况:

    • 气动触摸显示器提供动态表面定制,但由于空间分辨率低和高密度执行器的复杂布线而受到限制.
    • 将许多气动执行器集成到像指尖这样的小空间中,这对气动电路设计来说是一个重大挑战.

    研究的目的:

    • 提出和开发一种新的多层叠加微流体管结构,用于气动触摸显示器.
    • 为了提高柔软的微流体触摸显示器的空间分辨率和执行器密度,以改善触摸染.

    主要方法:

    • 设计了一种多层堆叠的微流体管结构,以克服单层布局的限制.
    • 开发了一种柔软的微流体触摸显示器,采用5×5数组独立地址的微执行器.
    • 特性执行器性能,包括外平面变形和在1000 mbar的相对压力下输出力.

    主要成果:

    • 为柔软的微流体触摸显示器实现了1.25mm的空间分辨率.
    • 证明了每个微型执行器的独立执行和连续高度控制.
    • 执行器在1000 mbar时产生了0.145 mm的变形和17.7 mN的力.
    • 用户研究证实96%的准确性在区分八个触觉模式.

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    结论:

    • 拟议的多层结构允许高密度执行器集成到微流体触摸显示器中.
    • 开发的软微流体触摸显示器显著提高了空间分辨率和触摸模式的区分.
    • 这种进步有可能在各种应用中提供更具身临其境和信息性的触觉反.