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Comparison of Demagnetization Curve of Nd‐Fe‐B Magnets Measured with Various Magnetization Measurement Systems
Author(s) -
HAYASHI YUKI
Publication year - 2017
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.11982
Subject(s) - magnetometer , demagnetizing field , magnet , permeameter , materials science , magnetization , magnetic field , nuclear magnetic resonance , condensed matter physics , electrical engineering , physics , environmental science , engineering , hydraulic conductivity , quantum mechanics , soil science , soil water
SUMMARY The magnetic properties of Nd‐Fe‐B magnets with 0.5 mm and 1 mm cubes in size were measured with a vibrating sample magnetometer equipped with high‐temperature superconducting magnet (VSM_HSC). With the VSM_HSC, high sweep speed and high accuracy in magnetization measurement were achieved. Furthermore, magnetic properties of Nd‐Fe‐B magnets were measured with the VSM_HSC, pulsed field magnetometer, and a permeameter. It was found that the squareness of demagnetization curves appeared depending on the measurement systems.