Liquid Manipulator with Printed Electrode Patterns for Soft Robotic Systems

软机器人 流体学 电流体力学 机械工程 材料科学 微流控 机器人学 计算机科学 执行机构 平面的 电极 流体力学 旋转(数学) 机器人 纳米技术 人工智能 工程类 电气工程 机械 物理 计算机图形学(图像) 量子力学
作者
Pingan Zhu,Wei Tang,Jiao Zhang,Huxiu Xu,Yi Hu,Yang Qu,Huayong Yang,Jun Zou
出处
期刊:Advanced materials and technologies [Wiley]
卷期号:8 (18) 被引量:2
标识
DOI:10.1002/admt.202300308
摘要

Abstract Soft robots are able to safely operate in a dynamically evolving or highly unstructured environment by virtue of their inherited compliance. Among the available actuation methods for soft robotics, fluid‐driven is frequently preferred due to holistic design considerations that enable multipurpose yet straightforward mechanical solutions to complicated issues. The motion of a soft fluid‐driven robotic system usually relies on the flow of its internal fluid, however, existing fluid pumps only enable a single linear flow, which severely hinders the integrated multifunctional design of soft robots. Herein, a class of liquid manipulator is proposed based on electrohydrodynamic (EHD) effect, which consists of a flexible substrate with a printed planar electrode pattern. By streamlining the electric field distribution via electrode pattern, the liquid manipulator can manipulate the fluid flow, allowing fluid to perform multiple movement behaviors, including tangential, radial, and linear motions. These liquid manipulators are fabricated by printing planar electrode patterns onto flexible substrates using the digital printing method, in which both the printed electrodes and substrate are flexible and bendable. These liquid manipulators are flexible, fast‐response, thin, lightweight, and scalable, which can be easily embedded into soft fluidic systems with insignificant footprint and weight and actuate their rapid movements. Three liquid manipulators are embedded into a continuously rotating motor, focus‐tunable liquid lens, and soft linear actuator to achieve their multiple motions, i.e., continuous rotation, radial motion, and linear motion, illustrating broad potential of liquid manipulators in soft robotic systems.
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