Patent ID: 7215116
Filing Date: 2007-05-08
Classification: G01D

Abstract:
1. A variable reluctance type angle detector, comprising: a stator including a plurality of teeth formed at intervals in a circumferential direction, exciting coils excited by a power source, and “a”-phase output coils for outputting a change in magnetic flux as a voltage, the exciting coils and the “a”-phase output coils being formed in the teeth by winding a wire on each of the teeth, wherein “a ” is an integer representing a number of phases of the output coils; and a rotor including an iron core having a shape in which a gap permeance between the iron core and the stator is sinusoidally changed, wherein the exciting coils formed in separate ones of the teeth are connected in series in a circumferential direction to produce a plurality of exciting coil groups and the exciting coil groups are connected in parallel to form an exciting winding.