Patent ID: 7183538
Filing Date: 2007-02-27
Classification: G01D

Abstract:
1. A signal adjusting apparatus which adjusts an electrical signal, comprising: a movable member which is movable in a movable range composed of a plurality of intervals; a first detecting device which detects one of the intervals where the movable member is located, the first detecting device being constituted by a first movable portion mounted on the movable member and a first fixed portion spaced apart from the first movable portion, said one of the intervals being an absolute position of the movable member; a second detecting device which detects a relative position of the movable member within the interval detected by the first detecting device, the second detecting device being constituted by a second movable portion mounted on the movable member and a second fixed portion spaced apart from the second movable portion; and a correction device which corrects the detected relative position based on a relationship between the absolute position and the relative position stored in a memory in advance.