The research of the homogeneity of the magnetic fields, formed by three component contour round and square geometries systems

In this paper modeling of homogeneity of the magnetic field which is created by three-component contour round and square geometries systems in different configurations was made in finite element analysis software COMSOL Multiphysics. We found that system based on square circuits is able to form more homogeneous magnetic field and in greater volume than system based on Helmholtz coils. To create more homogeneous magnetic field the system was modified by increasing the number of circuits. In system with five square circuits magnetic field is more homogeneous than it in systems with two and three circuits. Research of influence on homogeneous of magnetic fields extreme circuit currents showed that there are no any dependences between these characteristics. In final stage influence of circuit-s width on homogeneity of magnetic field was considered. Computer simulation results were showed that with increasing of circuit-s width the magnetic field becomes more even and therefore more homogeneous. As a result of this research model of circuit system was obtained. This model can be used in practical purposes like forming controlled magnetic field with predetermined degree of homogeneity for compensation and reproducing geomagnetic excitation and creation of hypomagnetic fields with different structures affecting on human body in magnetotherapy systems.