Iron-nickel alloy wire for magnetic sensor and potentiometer wire

摘要

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to obtain a magnetic sensor provided with a magnetoresistive wire which is easy to manufacture and has a small variation.;An iron-nickel alloy wire rod obtained by drawing an iron-nickel alloy wire rod (alloy wire rod) composed of 40% by weight to 60% by weight of nickel and the residual iron wire at a working ratio A of 70% To obtain an iron-nickel alloy for a magnetoresistive wire. The iron-nickel alloy wire for the potato steel wire is wound around the through hole 1a of the bobbin body 1, the through hole 2a of the first bobbin trunk 2, (3) through the through hole (3a). The end on the side of the first bobbin edge 2 in the iron-nickel alloy wire for the potentiostatic wire is bent and fixed in the groove 2b of the first bobbin edge 2. After the warp is imparted in the circumferential direction on the side of the groove 3b side of the second bobbin trunk 3 in the iron-nickel alloy wire for the demagnetizing wire, the groove 3b of the second bobbin trunk 3 To form a demagnetizing wire 4. The detection coil 5 is wound around the outer periphery of the bobbin main body 1 while surrounding the periphery of the electret wire 4.