Patent ID: 7845616
Filing Date: 2010-12-07
Classification: F02D,G01D,Y10T

Abstract:
1. A rotation angle sensor, comprising: a case member for covering a rotated detection element, and a substrate is attached to said case member; energizing conductors for being each annularly arranged on the substrate, and generating a magnetic field by applying a current; an exciting conductor for being fixed to the rotated detection element and spaced from and not in contact with said energizing conductors to generate a current according to the rotational position of the rotated detection element through electromagnetic induction; and receiving conductors for being each arranged on the substrate to generate a current according to the current flowing in said exciting conductor; wherein a shield member made of a resin material is provided between said exciting conductor provided on the rotated detection element and said energizing and receiving conductors that are provided on the substrate to cover said energizing and receiving conductors to shield said energizing and receiving conductors from ambient air.