Helmholtz coils provide an easy and non-destructive way to control the quality of permanent magnets. The Helmholtz coils can be single-axis or 3-axes. The 3-axes lets you see the direction of the [...]
2-POLE AXIAL magnetization: the Bitter axial solenoid coil is composed of copper sheets, which are cut with a pattern which forces the electric current to run along the inner edge, around the [...]