Linear motion and rotation characteristics of YBCO bulk using exciting coils

S. Okamura, A. Shimizu, Seok Beom Kim, S. Murase

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

A superconducting actuator with multiple motions is proposed and experimentally investigated for the development of microelectrical machines. The disk-shaped YBCO bulk was located above the electromagnets and cooled down in the field-cooling method, which enabled the flux pinning. The YBCO bulk superconductor was driven in vertical, horizontal and/or self-rotation by PC-controlled coil currents using multiple electromagnets. The most suitable levitation stability was obtained when we used four electromagnets and NNSS trapped field type. It was confirmed that the levitation force and horizontal moving force strongly depended on the coil current and the air gap length, respectively.

Original languageEnglish
Pages (from-to)834-838
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume426-431
Issue numberI
DOIs
Publication statusPublished - Oct 1 2005

Fingerprint

Electromagnets
electromagnets
coils
levitation
Flux pinning
flux pinning
Superconducting materials
Actuators
actuators
Cooling
cooling
air
Air

Keywords

  • Actuator
  • Motor
  • Superconducting bulk
  • Y-based cuprates

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Linear motion and rotation characteristics of YBCO bulk using exciting coils. / Okamura, S.; Shimizu, A.; Kim, Seok Beom; Murase, S.

In: Physica C: Superconductivity and its Applications, Vol. 426-431, No. I, 01.10.2005, p. 834-838.

Research output: Contribution to journalArticle

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