Magnetic levitation system for moving objects
- Walnut Creek, CA
Repelling magnetic forces are produced by the interaction of a flux-concentrated magnetic field (produced by permanent magnets or electromagnets) with an inductively loaded closed electric circuit. When one such element moves with respect to the other, a current is induced in the circuit. This current then interacts back on the field to produce a repelling force. These repelling magnetic forces are applied to magnetically levitate a moving object such as a train car. The power required to levitate a train of such cars is drawn from the motional energy of the train itself, and typically represents only a percent or two of the several megawatts of power required to overcome aerodynamic drag at high speeds.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Assignee:
- Regents of University of California (Oakland, CA)
- Patent Number(s):
- US 5722326
- OSTI ID:
- 871391
- Country of Publication:
- United States
- Language:
- English
Similar Records
Livermore's 2004 R&D 100 Awards: Magnetically Levitated Train Takes Flight
Final Progress Report for the NASA Inductrack Model Rocket Launcher at the Lawrence Livermore National Laboratory
Related Subjects
levitation
moving
repelling
forces
produced
interaction
flux-concentrated
field
permanent
magnets
electromagnets
inductively
loaded
closed
electric
circuit
element
moves
respect
current
induced
interacts
produce
force
applied
magnetically
levitate
train
car
power
required
cars
drawn
motional
energy
typically
represents
percent
megawatts
overcome
aerodynamic
drag
speeds
power required
magnetic levitation
magnetic force
magnetic forces
electric circuit
permanent magnet
magnetic field
permanent magnets
inductively loaded
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