Patent ID: 6329815
Filing Date: 2001-12-11
Classification: G01P

Abstract:
A rotation sensor comprising:a rotor rotating together with a rotation portion of a detection side;a first supporting member for rotatably supporting the rotor;a second supporting member for supporting said first supporting member;a third supporting member for supporting the second supporting member; anda detecting member, secured to said first supporting member, for detecting a rotation state of said rotor,wherein said first supporting member is supported movably in both directions, that is, an X direction which is orthogonal to the direction of the rotating shaft of said rotor and a Y direction which is orthogonal to the direction of the rotating shaft of said rotor and orthogonal to said X direction,wherein said first supporting member is supported movably to the Y direction by said second supporting member, andwherein said second supporting member is supported movably to the X direction by said third supporting member.