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Shape programmable magnetic pixel soft robot.

Ran Zhao1,2,3, Houde Dai1,3, Hanchen Yao1,3

  • 1Quanzhou Institute of Equipment Manufacturing of Haixi Institutes, Chinese Academy of Sciences, Quanzhou 362200, China.

Heliyon
|November 17, 2022
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Summary

This study introduces programmable magnetic pixel soft robots (MPSRs) with reconfigurable shapes and functions. Laser-assisted magnetic programming enables precise control over discrete magnetic regions for advanced soft robot design.

Keywords:
Liquid-metalMagnetic encodingMagnetic pixelProgrammable shapeSoft robot

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Area of Science:

  • Robotics
  • Materials Science
  • Magnetic Materials

Background:

  • Magnetic soft robots (MSRs) offer controllable shape-morphing via magnetic programming.
  • Current MSRs have limitations due to unchangeable, continuous magnetization profiles, restricting deformation and function design.

Purpose of the Study:

  • To develop a programmable magnetic pixel soft robot (MPSR) with reconfigurable deformations and functions.
  • To overcome the limitations of continuous magnetization in traditional MSRs.

Main Methods:

  • Fabrication of a thermal-magnetic response functional film with a lattice structure using liquid-metal/NdFeB composites encapsulated in a silicone shell.
  • Development of laser-assisted magnetic programming equipment for magnetic encoding on discrete pixel regions (1x1 mm²).
  • Proposal of a mathematical model to calculate magnetic codes for desired end shapes.

Main Results:

  • Successful preparation and testing of pixel-structured MPSRs.
  • Demonstration of reconfigurable deformations and functions through magnetic encoding.
  • Achieved high pixel resolution for precise magnetic control.

Conclusions:

  • The developed magnetic encoding technique allows for dynamic reconfiguration of MSR shapes and functions.
  • This study provides a foundation for programmed shape regulation and advanced motion design in soft robotics.