Patent ID: 6577122
Filing Date: 2003-06-10
Classification: G01B,G01D

Abstract:
A magnetic detection apparatus comprising:at least one magnetoelectric conversion element disposed to face a detected portion of a magnetic moving object; a magnet with a direction of magnetization thereof oriented in a direction perpendicular to a radial direction of said magnetic moving object in which said magnet faces said magnetic moving object; and a magnetic guide, coupled to said magnet, having at least two pole projections formed in a spaced apart relation with respect to each other in a radial direction of said magnetic moving object in which said magnetic guide faces said detected portion of said magnetic moving object; wherein said at least one magnetoelectric conversion element is disposed between said pole projections when viewed from a direction perpendicular to said radial direction of said magnetic moving object in which said magnetic guide faces said detected portion of said magnetic moving object.