Velocity damper for electromagnetically levitated materials
Abstract
A system for damping oscillatory and spinning motions induced in an electromagnetically levitated material is disclosed. 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. 1 fig.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 7038037
- Patent Number(s):
- 5319670
- Application Number:
- PPN: US 7-918095
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 24 Jul 1992
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 33 ADVANCED PROPULSION SYSTEMS; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; LEVITATED TRAINS; MECHANICAL VIBRATIONS; DAMPING; ELECTROMAGNETIC FIELDS; LEVITATION; MAGNETIC FIELDS; TRAINS; VEHICLES; 330300* - Advanced Propulsion Systems- Electric-Powered Systems; 320202 - Energy Conservation, Consumption, & Utilization- Transportation- Railway
Citation Formats
Fox, R J. Velocity damper for electromagnetically levitated materials. United States: N. p., 1994.
Web.
Fox, R J. Velocity damper for electromagnetically levitated materials. United States.
Fox, R J. Tue .
"Velocity damper for electromagnetically levitated materials". United States.
@article{osti_7038037,
title = {Velocity damper for electromagnetically levitated materials},
author = {Fox, R J},
abstractNote = {A system for damping oscillatory and spinning motions induced in an electromagnetically levitated material is disclosed. 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. 1 fig.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {6}
}
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