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Proceedings Paper

Magnetically driven self-moving microactuators
Author(s): Kenji I. Arai; Mark K. Yamaguchi; T. Honda; K. Shimasaki
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Paper Abstract

This paper describes new micro-magnetic actuators for self- moving (-walking, -flying, and -swimming) microrobots. Their actuation force is generated by the interaction between external magnetic fields and the magnetic materials used for actuators. Accordingly, they can move independently without power supply cables. The walking actuator, composed of magnetostrictive thin films and two inclined legs, is capable of a high velocity of 65 mm/s and a reversible motion with forward and backward. The flying actuator has a pair of hard magnetic film wings with two elastic hinges and a soft magnetic film wings with two elastic hinges and a soft magnetic wire body for attitude control. It can successfully fly without any cable or guide. Two kinds of swimming actuators, composed of a small magnet with an elastic fin or a spiral wire, can swim in viscous silicone oil with low Reynolds numbers.

Paper Details

Date Published: 16 April 1998
PDF: 6 pages
Proc. SPIE 3321, 1996 Symposium on Smart Materials, Structures, and MEMS, (16 April 1998); doi: 10.1117/12.305592
Show Author Affiliations
Kenji I. Arai, Tohoku Univ. (Japan)
Mark K. Yamaguchi, Tohoku Univ. (United States)
T. Honda, Tohoku Univ. (Japan)
K. Shimasaki, Tohoku Univ. (Japan)

Published in SPIE Proceedings Vol. 3321:
1996 Symposium on Smart Materials, Structures, and MEMS
Vasu K. Aatre; Vijay K. Varadan; Vasundara V. Varadan, Editor(s)

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