The rice haptic rocker: Altering the perception of skin stretch through mapping and geometric design
The rice haptic rocker: Altering the perception of skin stretch through mapping and geometric design
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米触觉摇杆：通过映射和几何设计改变皮肤拉伸的感觉
DOI：
10.1109/haptics.2018.8357175
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
M. O'Malley
中科院分区：
文献类型：
--
作者：
Janelle P. Clark;Sung Y. Kim;M. O'Malley
皮肤拉伸触觉设备非常适合通过触摸传输信息，这是假肢研究中一种有前途的途径，可以解决肌电设计中缺乏反馈的问题。基于摇杆的皮肤拉伸装置已被提出用于感觉替代和导航反馈，但其设计在几何形状上有所不同。其他作品创造扭转拉伸，并利用非线性映射来增强感知。这项工作调查参数的摇杆几何形状和映射功能，以及它们如何影响用户的感知。我们假设感知变化取决于运动范围内拉伸增量大小的选择。摇杆几何形状随着旋转轴和几何轴之间的偏移而变化，并且在用非线性或线性映射实现的瞄准任务期间评估三个摇杆设计。没有偏移和正偏移（宽）的摇杆比负偏移（窄）的情况下表现更好，尽管映射方法不影响目标精度。
Skin stretch haptic devices are well-suited for transmitting information through touch, a promising avenue in prosthetic research, addressing the lack of feedback in myoelectric designs. Rocker-based skin stretch devices have been proposed for sensory substitution and navigational feedback, but the designs vary in their geometry. Other works create torsional stretch, and utilize nonlinear mappings to enhance perception. This work investigates parameters of rocker geometry and mapping functions, and how they impact user perception. We hypothesize that perceptual changes are dependent on the choice of stretch increment sizes over the range of motion. The rocker geometry is varied with an offset between the rotational and geometric axes, and three rocker designs are evaluated during a targeting task implemented with a nonlinear or linear mapping. The rockers with no offset and a positive offset (wide) perform better than the negative offset (narrow) case, though the mapping method does not affect target accuracy.