Linear motion and rotation characteristics of YBCO bulk using exciting coils

S. Okamura; A. Shimizu; S. B. Kim; S. Murase

doi:10.1016/j.physc.2005.03.069

Linear motion and rotation characteristics of YBCO bulk using exciting coils

S. Okamura, A. Shimizu, S. B. Kim, S. Murase

Research output: Contribution to journal › Conference article › peer-review

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 language	English
Pages (from-to)	834-838
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	426-431
Issue number	I
DOIs	https://doi.org/10.1016/j.physc.2005.03.069
Publication status	Published - Oct 1 2005
Event	Proceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity - Duration: Nov 23 2004 → Nov 25 2004

Keywords

Actuator
Motor
Superconducting bulk
Y-based cuprates

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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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.",

keywords = "Actuator, Motor, Superconducting bulk, Y-based cuprates",

author = "S. Okamura and A. Shimizu and Kim, {S. B.} and S. Murase",

note = "Funding Information: This work was mainly supported by Okayama Prefecture Industrial Promotion Foundation. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.; Proceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity ; Conference date: 23-11-2004 Through 25-11-2004",

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AU - Okamura, S.

AU - Shimizu, A.

AU - Kim, S. B.

AU - Murase, S.

PY - 2005/10/1

Y1 - 2005/10/1

N2 - 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.

AB - 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.

KW - Actuator

KW - Motor

KW - Superconducting bulk

KW - Y-based cuprates

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JO - Physica C: Superconductivity and its Applications

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Y2 - 23 November 2004 through 25 November 2004

ER -

Linear motion and rotation characteristics of YBCO bulk using exciting coils

Abstract

Keywords

ASJC Scopus subject areas

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