Simple Mathematical Model for Ferromagnetic Core Inductance and Experimental Validation

Magnetic materials are used in electrical power devices such as transformers, motors and generators. They are also present in measurement and control of electrical power for actuators and sensors, contactors and relays. Another application field is found to be in the magnetic recording industry, either by analog or digital, as in audio and video recording or in the storage of data information on magnetic disks and tapes for computer applications. The purpose of a magnetic material core in an inductor is to produce by a given applied field, a higher flux compared to the flux produced in air, and to form a magnetic path for the flux.

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