Development of Magnetically Driven Swimming Micro-robot for Science Education

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  • Eiki Takashi
    Department of Applied Science for Integrated System Engineering, Kyusyu Institute of Technology
  • Honda Takashi
    Department of Applied Science for Integrated System Engineering, Kyusyu Institute of Technology
  • Yamasaki Jiro
    Department of Applied Science for Integrated System Engineering, Kyusyu Institute of Technology

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  • 外部磁界で駆動する科学教育用水中マイクロロボットの開発
  • ガイブ ジカイ デ クドウ スル カガク キョウイク ヨウスイ チュウ マイクロロボット ノ カイハツ

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Abstract

A dolphin-type swimming micro-robot has been developed for science education. This micro-robot, approximately 60mm in length, consists of a rigid body balanced with a float, and a propulsive mechanism including a magnet and an elastic fin. The mechanism features unique design based on biomimetics and a simple structure for easy construction. When external alternating magnetic fields are applied, the magnet oscillates angularly due to magnetic torque and then the caudal fin can produce a thrust. The micro-robot can swim at over 30cm/sec under alternating magnetic fields of 4kA/m at 20Hz. Results of a handicraft class at an elementary school have demonstrated that the micro-robot developed in this study is useful for science education.

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