A rolling locomotion method for untethered magnetic microrobots.

Autor: Hou, Max T., Hui-Mei Shen, Guan-Lin Jiang, Chiang-Ni Lu, I-Jen Hsu, Yeh, J. Andrew
Předmět:
Zdroj: Applied Physics Letters; 1/11/2010, Vol. 96 Issue 2, p024102, 3p, 2 Color Photographs, 2 Diagrams, 1 Graph
Abstrakt: It is a challenge to achieve free and efficient motion of microrobots on arbitrary surfaces. We report a rolling locomotion method for a magnetic microrobot with a rectangular body (300×200×50 μm3); this method is based on an external rotating magnetic field. The magnetic force, accompanied by normal and friction forces, enables the successive rotations of the microrobot. A magnetic field with a rotational speed of 2 rps rolls the microrobot, giving it a translation speed of 1.4 mm/s. With this locomotion ability, microrobots can move along a line or curve and can climb slopes or stairs. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index