Non-contact sine-cosine rotary transformer (resolver)

摘要

The device relates to the field of electrical engineering, namely to information electric machines, and can be used as a feedback sensor for controlling electric motors. A non-contact sine-cosine rotating transformer (resolver) contains a stator and a rotor in the form of magnetic circuits with grooves on the outer and inner sides has two-phase on the stator and single-phase on the rotor concentric distributed windings, a ring transformer, in order to improve accuracy and ensure the manufacturability of truktsii applied bevel grooves on one rotor tooth pitch, and fan-shaped sheets of the rotor core assembly. The rotor and stator cores are made of permalloy. The solution to the technical problem is to reduce the structural and technological complexity of the sine-cosine rotating transformer with a low level of functional error.