Self-hysteresis curve continuous measurement apparatus using permanent magnet

摘要

The present invention provides an apparatus for continuously measuring a hysteresis curve using a permanent magnet, comprising: a supply unit and a recovery unit for supplying and recovering the compositionally inclined thin film so that the compositionally inclined thin film can be continuously moved; a permanent magnet member comprising an N pole and an S pole for applying a magnetic field to the compositionally inclined thin film and installed in a spaced state so as not to contact the compositionally inclined thin film in a region through which the compositionally inclined thin film passes; Adjust the distance between the permanent magnet member and the compositionally inclined thin film, and set the permanent magnet member such that the N pole and the S pole in the region of the permanent magnet member adjacent to the compositionally inclined thin film alternately approach the length of the compositionally inclined thin film. a magnet driving unit disposed vertically along the direction and driving to apply a magnetic field vertically or horizontally to the surface of the compositionally inclined thin film; A technical gist of the invention is to include a Hall probe sensor installed in a region through which the compositionally inclined thin film passes and scans the magnetization of the compositionally inclined thin film by the magnetic field of the permanent magnet member at regular intervals. Accordingly, it is possible to select an optimal composition ratio of a magnetic material by continuously measuring magnetic properties of magnetic materials having different composition ratios in a non-contact state on a compositionally inclined thin film in which composition ratios different from each other are continuously distributed in each region.