Velocity damper for electromagnetically levitated materials
Abstract
A system for damping oscillatory and spinning motions induced in an electromagnetically levitated material. Two opposed field magnets are located orthogonally to the existing levitation coils for providing a DC quadrupole field (cusp field) around the material. The material used for generating the DC quadrupole field must be nonconducting to avoid eddy-current heating and of low magnetic permeability to avoid distorting the induction fields providing the levitation.
- Inventors:
-
- Oak Ridge, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 869346
- Patent Number(s):
- 5319670
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05B - ELECTRIC HEATING
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- velocity; damper; electromagnetically; levitated; materials; damping; oscillatory; spinning; motions; induced; material; opposed; field; magnets; located; orthogonally; existing; levitation; coils; providing; dc; quadrupole; cusp; generating; nonconducting; avoid; eddy-current; heating; magnetic; permeability; distorting; induction; fields; levitation coil; magnetic permeability; magnetically levitated; quadrupole field; motions induced; electromagnetically levitated; /373/219/
Citation Formats
Fox, Richard J. Velocity damper for electromagnetically levitated materials. United States: N. p., 1994.
Web.
Fox, Richard J. Velocity damper for electromagnetically levitated materials. United States.
Fox, Richard J. Sat .
"Velocity damper for electromagnetically levitated materials". United States. https://www.osti.gov/servlets/purl/869346.
@article{osti_869346,
title = {Velocity damper for electromagnetically levitated materials},
author = {Fox, Richard J},
abstractNote = {A system for damping oscillatory and spinning motions induced in an electromagnetically levitated material. Two opposed field magnets are located orthogonally to the existing levitation coils for providing a DC quadrupole field (cusp field) around the material. The material used for generating the DC quadrupole field must be nonconducting to avoid eddy-current heating and of low magnetic permeability to avoid distorting the induction fields providing the levitation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1994},
month = {Sat Jan 01 00:00:00 EST 1994}
}
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