Magnetic Levitation Apparatus

Magnetic Levitation Apparatus .

Description of Magnetic Levitation Apparatus

The Magnetic Levitation Apparatus shows control problems with non-linear, unstable systems. The apparatus consists of a steel ball held in a magnetic field produced by a current-carrying coil. At equilibrium, the downward force on the ball due to gravity is balanced by the upward magnetic force of attraction of the ball towards the coil. Any imbalance and the ball will move away from the set-point position. The basic control task is to control the vertical position of the freely levitating ball in the magnetic field of the coil. The Magnetic Levitation Apparatus is a non-linear, dynamic system with one input and one output. A sensor measures the position of the ball. A power amplifier with overheat protection drives the coil.

Specifications of Magnetic Levitation Apparatus

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