Analysis of space magnetic induction of magnets in different shapes

Objective To study the space magn etic induction of the circular and square as well as sphere magnets, providing basis for use and measurement of magnets. Methods The mag netic induction on the axis and on the line which is vertical to the axis and pa sses the polar centers are shown by the finite element method calculating the sp ace magnetic induction of the magnets. Results The m agnetic induction of the three shapes of magnets fall down with distance going u p away from the polar center on the axis. Magnetic induction of circular magnets and square magnets go up in the shape and falls down out of the shape, as for a sphere magnets only fall down, with distance going up away from the polar cente r on the lines which is vertical to the axis and passes the polar centers. Conclusion It is important to study the space magnetic in duction for the standardization of magnets in magnetic therapy.