Magnetic Levitation of Iron Sphere Using Analog pd Controller

Abstract

Magnetic levitation system of small iron sphere shows a visual demonstration of principles in control system design and electronic system design. This study is on a sample application kit of magnetic levitation system used in a wide area as wind tunnels, speed trains, conveyor systems and magnetic ball bearings, etc. The prototype consists of a vertical electromagnet and a 30 mm diameter iron sphere to be levitated against earth gravity. A proportional to derivative (PD) controller and a simple electromagnetic design for a given sphere have been implemented in this educational project and the performance of the system is investigated.