Electromagnetic Suspension

Electromagnetic Suspension

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Electromagnetic Suspension is the magnetic levitation of an object achieved by constantly altering the strength of a magnetic field produced by electromagnets. In most cases the levitation effect is mostly due to permanent magnets; since they don't have any power dissipation, with electromagnets only used to stabilise the effect. A charged body cannot rest in stable equilibrium when placed in a pure electrostatic field or magnetostatic field. In these kinds of fields an unstable equilibrium condition exists. Although static fields cannot give stability, EMS works by continually altering the current sent to electromagnets to change the strength of the magnetic field and allows a stable levitation to occur. Usually, a feedback loop which continuously adjusts one or more electromagnets to correct the object's motion is used to cancel the instability. Many systems use magnetic attraction pulling upwards against gravity for these kinds of systems as this gives some inherent lateral stability, but some use a combination of magnetic attraction and magnetic repulsion to push upwards.show more

Product details

  • Paperback | 96 pages
  • 152 x 229 x 6mm | 150g
  • Culp Press
  • United States
  • English
  • black & white illustrations
  • 6135967908
  • 9786135967906