VARIABLE RELUCTANCE TYPE RESOLVER

摘要

PROBLEM TO BE SOLVED: To provide a variable reluctance type resolver capable of fixing a rotor inexpensively without lowering detection precision. SOLUTION: This variable reluctance type resolver 1 is constituted of a stator 5 wound with a coil 6, the rotor 4 having a projected pole part 4a in its outer circumference, and a ring-like stopper 10 comprising a steel material. The stopper 10 has an outside diameter DS smaller than a root diameter DR of the rotor 4. A magnetic flux is prevented thereby from being leaked to the stopper 10, and the steel material of an inexpensive magnetic material is usable thereby for fixing the rotor 4 to reduce a cost. COPYRIGHT: (C)2005,JPO&NCIPI