Obtenção e análise de curvas de magnetização usando o software GNU Octave e Linguagem de Programação Fortran

Abstract

The constant development of technologies used in the most diverse sectors of engineering such as telecommunications, computers, robotics, among others, makes us think how difficult it would be to live in a society without all this evolution. Among the types of magnetic materials, ferromagnetic ones are strongly used in several production sectors. Ferromagnetic substances have strong interactions between atomic magnetic moments, resulting in an internal alignment giving rise to certain regions called magnetic domains, which make ideal materials to be used in the production of motors, generators and transformers. The magnetic characterization of the materials is done, mainly, from the graph that relates the magnetic field and magnetization. Within this context, this work carried out a study, in the form of a bibliographical review, of the most different graphic profiles that illustrate the magnetic behavior of the different materials used in the technology industry, as well as the importance of certain magnetic properties that the materials must present associated to the various applications. Bibliographic research was carried out using published works that are related to the theme of the project and profiles of magnetization curves obtained using the computational tool GNU Octave and the Fortran. The magnetization curves were obtained taking into account the Jiles-Atherton theory, as well as the theoretical foundation that presents an approach to the initial theories that give rise to the mathematical description of the magnetism of materials