Study on a novel contact-free planar system using direct drive DC coils and permanent magnets

Kwang Suk Jung, Yoon Su Baek

Research output: Contribution to journalArticle

39 Citations (Scopus)


To cope with the severe specification such as a concurrent realization of high accuracy and wide operating range demanded in many fields, we suggest a novel contact-free planar system that realizes the spatial motion of a plate by generating a levitation force and a thrust force at the same plane concurrently. The system utilizes an interaction between the direct drive dc coils of a common shape and the permanent magnets with a coincident polar direction and, thus, it is very facile to implement and simple to quantify the magnetic interaction. In this paper, we discuss a driving principle of the planar system including magnetic force generation mechanism, a framework for force model, governing characteristics of the levitated plate and a planar motion control of the constructed prototype. The experimental results are given to verify the derived theoretical model and the feasibility of the system.

Original languageEnglish
Pages (from-to)35-43
Number of pages9
JournalIEEE/ASME Transactions on Mechatronics
Issue number1
Publication statusPublished - 2002 Mar

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Computer Science Applications
  • Electrical and Electronic Engineering

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