Development of compact magnet for high magnetic force

A high magnetic force is useful for levitating diamagnetic or magnetic materials. The magnetic force is proportional to the product of B and dB/dz. Here the product is called the magnetic force Held. Normally, a high magnetic force field is available only with 20 T class magnets in a few, high-field...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2002-03, Vol.12 (1), p.933-936
Main Authors: Miyoshi, K., Shimizu, H., Meguro, S., Uetake, H., Hirota, N., Kitazawa, K.
Format: Article
Language:English
Subjects:
Applied sciences
Boring
Displacement
Displacement measurement
Electrical engineering. Electrical power engineering
Electromagnetic forces
Electromagnetic modeling
Electromagnets
Exact sciences and technology
Gravitation
Gravity
Laboratories
Levitation
Magnetic fields
Magnetic forces
Magnetic levitation
Magnetic materials
Magnetism
Noise levels
R&D
Research & development
Superconductivity
Testing
Various equipment and components
Winding
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Summary:A high magnetic force is useful for levitating diamagnetic or magnetic materials. The magnetic force is proportional to the product of B and dB/dz. Here the product is called the magnetic force Held. Normally, a high magnetic force field is available only with 20 T class magnets in a few, high-field magnet facilities worldwide. We therefore anticipate realizing zero gravity relatively easily with a compact high force field magnet at any laboratory. What we have designed has enabled us to achieve a magnetic force field of up to 1400 T/sup 2//m at 13 T with a warm bore diameter of 32 mm. To verify that the design works, we successfully fabricated a model magnet using the same electromagnetic force for the design. On the test, the winding behavior was also clearly measured with an optical displacement method. The results indicate that the design is appropriate for such compact, high magnetic force as that applied to water levitation.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2002.1018552