Development of rolling magnetic Microrobots

Guan Lin Jiang, Yunn Horng Guu, Chiang Ni Lu, Pei Kao Li, Hui Mei Shen, Lung-Sheng Lee, Jerliang Andrew Yeh, Max Ti Kuang Hou

Research output: Contribution to journalArticle

41 Citations (Scopus)


This paper reports magnetic microrobots with rolling capability. A magnetic object subjected to an externally rotating magnetic field would be rotated due to the tendency of alignment between its internal magnetization and the field. Based on this principle, a magnetic microrobot in a spherical body with a diameter of several hundred microns was designed and fabricated. To remotely power and control the microrobot, a rotating magnet was used to generate a rotating magnetic field. Driven by this field, the microrobot can freely roll on threedimensional surfaces. These surfaces can be in air, water or silicon oil. In a dry environment, a microrobot with a diameter of 440 μm achieved a maximum linear speed of 13.2 mm s?1.

Original languageEnglish
Article number085042
JournalJournal of Micromechanics and Microengineering
Issue number8
Publication statusPublished - 2010 Aug 1


ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

Jiang, G. L., Guu, Y. H., Lu, C. N., Li, P. K., Shen, H. M., Lee, L-S., Yeh, J. A., & Hou, M. T. K. (2010). Development of rolling magnetic Microrobots. Journal of Micromechanics and Microengineering, 20(8), [085042].