Surface magnetic field distribution of magnetic knitted fabric

The health care function of magnetic knitted fabric acts on human body through its surface magnetic field.Its effect is affected by the intensity,direction and distribution of the surface magnetic field together.This study explored the surface magnetic field of the double-layer magnetic knitted fabric Ⅰ,magnetic knitted fabricⅡ,and non-magnetic knitted fabricⅢ under different configurations.MatLab was used to draw the distribution of surface magnetic induction intensity and convert it into a three-dimensional graphic that can be seen visually.The results show that the surface magnetic field strength of Ⅱ is relatively weak;and its distribution is extremely uneven and varies greatly in different regions.After superposition,the surface magnetic field intensity of Ⅰ increases significantly and the differences in regions increase as well.The superimposed layer with Ⅲ covering Ⅱ or the sandwich with Ⅱ being placed between layers of Ⅲ all exhibit a significant decrease in both the surface magnetic field intensity and the differences in regions.The decrease extent mainly depends on the thickness of Ⅲ.The surface magnetic field of the superimposed layer with Ⅱ covering Ⅲ is similar to that of the singlelayer magnetic knitted fabric.