Variable-reluctance resolver and method and apparatus for manufacturing the same

摘要

A VR resolver includes a rotor having a rotary shaft portion and a salient pole portion formed integrally. The salient pole portion assumes an arbitrary salient pole profile. Two or more salient pole portions may be formed on the rotary shaft portion along the length of the rotary shaft portion. The salient pole portion may be a bulged portion of the rotary shaft portion. The bulge portion may assume a rounded shape or a plate-like shape.