液态金属/Nd2Fe14B/Ecoflex复合软机器人及其使用非接触触手的电信号传输,Advanced Materials Technologies

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液态金属/Nd2Fe14B/Ecoflex复合软机器人及其使用非接触触手的电信号传输
Advanced Materials Technologies ( IF 6.4 ) Pub Date : 2023-08-15 , DOI: 10.1002/admt.202300827
Shanfei Zhang ₁ , Yamei Yue ₁ , Yizhuo Xu ₁ , Qi Wang ₂ , Zhuofan Li ₂ , Bin Su ₁

Affiliation

刚性机器人之间的信号传输通常通过线圈或电路板等刚性电子元件来实现。然而，由于杨氏模量的不匹配，这些刚性电子单元很难用于全柔性软机器人。液态金属（LM）作为一种具有优异导电性的柔性流体，可以作为刚性电子单元的替代材料，在全柔性软机器人中实现信号传输。本文制造了一种全柔性软机器人，它主要由两个功能单元组成：与液态金属螺旋线集成的软触手和由Nd 2 Fe 14 _B磁粉_/ Ecoflex复合材料制备的本体。全柔性软机器人不仅可以基于电磁感应传输电信号，还可以在外部磁场的驱动下形成多种信号传输路径。通过麦克斯韦数值模拟研究了电信号传输和驱动的相关机制。在外部磁场的驱动下，三个软机器人能够构成两条不同的路径将电信号传输到示波器。相信将LM集成到磁性复合材料中为实现全柔性软体机器人的信号传输提供了开放的视角，有利于多功能软体机器人的发展。

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Liquid-Metal/Nd2Fe14B/Ecoflex Composite Soft Robots and Their Electric Signal Transmission using Non-Contact Tentacles

Signal transmission between rigid robots is usually realized through rigid electronic components like coil or circuit board. However, these rigid electronic units are difficult to be used in fully flexible soft robots because of the mismatch of Young's modulus. Liquid metal (LM), as a flexible fluid with superior electric conductivity, can be served as the alternative material for rigid electronic units to realize signal transmission in fully flexible soft robots. Herein, a fully flexible soft robot is fabricated, which is mainly consists of two functional units: the soft tentacle integrated with liquid metal spiral wire and the body prepared by Nd₂Fe₁₄B magnetic powders/Ecoflex composites. The fully flexible soft robot can not only transmit electric signals based on electromagnetic induction but also be actuated by an external magnetic field to form diverse signal transmission pathways. Related mechanisms of transmitting electric signal and driving are studied by Maxwell numerical simulation. Driven by an external magnetic field, three soft robots are capable to constitute two different pathways to transmit electric signals to the oscilloscope. It is believed that the integration of LM into the magnetic composites provides an open perspective to realize the signal transmission in fully flexible soft robot and favors the development of multifunctional soft robot.

更新日期：2023-08-15

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