Azimuth meter having spin-valve giant magneto-resistive elements

摘要

Manufacturing process is simple, and, starting the azimuth meter using the spin-valve type giant magneto-resistance effect element can be a miniaturized, low power consumption. After a quadrilateral with parallel opposite sides of a pair of coil flat coil, installed on a plane parallel to its spin-valve type giant magneto-resistance effect element spin-valve type giant consisting of two a pair IV (組) of the magnetoresistive element the defense system has. Two elements of the element pair has its longitudinal direction is orthogonal to each other, the same one side or opposite sides and only one each of the 45 cross-roads of the plane coil. A fixed bed of the second one of the two elements may be magnetized in the longitudinal direction, it has a fixed bed and the other are magnetized in the same direction as the magnetization of the fixed layer of the one side. Between the distal end of one of the elements of each element pair is connected. When under the voltage measurement between the other end portion, a focus voltage extracted from the distal end and connected to each other in the distal end of the element, the orientation obtained. ; Compass, spin valve type giant magneto-resistance element focus voltage, voltage measurement, magnetization