According to the above principles, choose the linear Hall element ugn3503 as magnetic change detection device.UGN3503 is made according to the principle of Hall effect measurements of magnetic fields of magnetic induction intensity. Here by Hall effect measurements of magnetic fields.
The Hall effect device as shown in the diagram. A semiconductor wafer is put in perpendicular to its magnetic field (b direction along the Z axis direction), when along the Y direction of the electrode a, a 'applied current I, wafer directional movement of the carrier (the average rate for U) by Lorentz force FB by,