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Title: Velocity damper for electromagnetically levitated materials

Patent Application ·
OSTI ID:10172169

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.

Research Organization:
Oak Ridge National Lab., TN (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC05-84OR21400
Assignee:
Dept. of Energy
Patent Number(s):
PATENTS-US-A7918095
Application Number:
ON: DE94016132; PAN: 7-918,095
OSTI ID:
10172169
Resource Relation:
Other Information: PBD: 1992
Country of Publication:
United States
Language:
English