Magnetic Patterning of Permanent-Magnet Rotors for Microscale Motor/Generators

Abstract

We present and characterize a process to pattern magnetic poles on small permanent-magnet (PM) rotors used in microscale, axial-flux, PM machines. Unlike other previously reported approaches, this approach uses a ferromagnetic magnetizing head (MH) and an externally applied magnetic field, and it offers the potential for moderate scalability and batch-magnetization of multiple parts. The process is verified using 8-pole annular PM rotors with thicknesses of 500 micrometers and 9.5 mm outer diameters. 3-D magnetostatic, finite element analysis (FEA) is employed to examine the process and to verify the experimental magnetization patterns.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2005
Accession Number
ADA463729

Entities

People

  • D. P. Arnold
  • Florian Herrault
  • I. Zana
  • Mark G. Allen

Organizations

  • Georgia Tech

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Balances
  • Determinants (Mathematics)
  • Electric Generators
  • Flux Density
  • Generators
  • Laboratory Magnetometers
  • Magnetic Devices
  • Magnetic Fields
  • Magnetic Flux
  • Magnetic Flux Density
  • Magnetic Materials
  • Magnetization
  • Magnets
  • Materials
  • Measurement
  • Microbalances
  • Permanent Magnets

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Electrical Engineering
  • Materials Science and Engineering.