Abstract
Ferromagnetic materials are characterized by magnetic dipoles that align themselves to the direction of an applied external magnetic field showing high and positive values of magnetic susceptibility. Many magnetic-based measurement devices are based on the ferromagnetic properties of its constituent materials and the proper magnetic characterization of these materials is essential. A hysteresigraph is an instrument for measuring hysteresis loops as a function of frequency and magnetic field, but, in general, it is very expensive. Thus, this paper presents a low-cost hysteresigraph for plotting hysteresis loops and magnetization curve of toroidal ferromagnetic cores in real time. The proposed hysteresigraph uses common instruments present in universities or research laboratories and a new simple mathematical modeling to obtain the magnetic properties (permeability, residual density and coercivity, for example) and magnetization curve.
Published Version
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