使用无线电频率的液晶弹性体执行器的频率选择性执行
Yiwen Song1, Zefang Li2,3, Mason Zadan2,4
1Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania, US. yiwens2@andrew.cmu.edu.
Nature communications
|August 7, 2025
概括
这项研究引入了一种新的无线电频系统,用于无线激活软机器人,在没有物理带的非视线场景中实现选择性控制. 这提高了机器人在狭窄空间中的移动性.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
背景情况:
- 软机器人在狭窄的空间中运行提供了优势.
- 当前的供电和执行方法 (电池,有线连接,近场无线) 限制了软机器人的移动性和在非视线环境中的适用性.
- 对于先进的软机器人应用,需要选择性无线启动.
研究的目的:
- 为软机器人开发无线驱动系统,克服当前方法的局限性.
- 为了使液晶弹性体 (LCE) 起动器能够使用射频 (RF) 能量进行频率选择性起动.
- 增强软机器人在非视线和受阻场景中的移动性.
主要方法:
- 制造具有低启动温度和嵌入导电痕迹的LCE执行器.
- 设计用于在特定的射频频率 (2.40 GHz) 上共振和加热的导电轨迹的集成.
- 开发一个具有通道推断和光束成形能力的无线执行平台,用于定向的射频能量传输.
主要成果:
- 使用射频激发来证明LCE执行器的频率选择性加热和执行.
- 实现了对执行器进行高效的无线光束成形.
- 在移动的机器人上展示了多个执行器的选择性执行,即使存在闭塞.
结论:
- 拟议的射频系统可以在具有挑战性的环境中精确,无线和选择性地启动软机器人.
- 这项技术显著提高了软机器人的移动性和操作能力,用于非视线应用.
- 该系统为软机器人的无控制提供了强大的解决方案,克服了以前的空间和环境限制.
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