Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA.
Department of Electrical and Computer Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA.
Sci Adv. 2024 Oct 25;10(43):eadr1765. doi: 10.1126/sciadv.adr1765.
Existing haptic actuators are often rigid and limited in their ability to replicate real-world tactile sensations. We present a wearable haptic artificial muscle skin (HAMS) based on fully soft, millimeter-scale, multilayer dielectric elastomer actuators (DEAs) capable of significant out-of-plane deformation, a capability that typically requires rigid or liquid biasing. The DEAs use a thickness-varying multilayer structure to achieve large out-of-plane displacement and force, maintaining comfort and wearability. Experimental results demonstrate that HAMS can produce complex tactile feedback with high perception accuracy. Moreover, we show that HAMS can be integrated into extended reality (XR) systems, enhancing immersion and offering potential applications in entertainment, education, and assistive technologies.
现有的触觉致动器通常是刚性的，并且在复制真实触觉感觉方面的能力有限。我们提出了一种基于完全柔软、毫米级、多层介电弹性体致动器（DEAs）的可穿戴触觉人工肌肉皮肤（HAMS），它能够实现显著的面外变形，而这种能力通常需要刚性或液体偏置。DEAs 使用厚度变化的多层结构来实现大的面外位移和力，同时保持舒适性和可穿戴性。实验结果表明，HAMS 可以产生具有高精度感知的复杂触觉反馈。此外，我们还展示了 HAMS 可以集成到扩展现实（XR）系统中，增强沉浸感，并在娱乐、教育和辅助技术方面提供潜在应用。
