Classification of Resolver

For a wound resolver, the AC magnetic field generated by the excitation winding is periodically stable, and the area of the magnetic field cut by the metal conductor of the secondary winding changes, causing changes in the magnetic flux, which in turn induces changes in electromotive force, forming a voltage signal, which is converted through A/D conversion It is a digital signal (i.e. angle signal);

The principle of reluctance resolver is different. Similarly, when the AC magnetic field generated by the excitation winding is periodically stable, the rotor rotation causes the air gap magnetic field between the stator and the rotor to change, which is fed back to the secondary winding inductance to change, thereby inducing the electromotive force. Changes occur to form a voltage signal, which is converted into a digital signal (ie, angle signal) through A/D.