Title :
Study on quantitative pulse magnetization of NdFeB
Author :
Zhi Hua Chen;Jun Quan Chen;Si Wei Cheng;You Xing Xiong;Kun Wei
Author_Institution :
National Key Laboratory of Science and Technology on Vessel Integrated Power System, Naval University of Engineering, Wuhan 430032, China
Abstract :
Demagnetization may occur in permanent magnet(PM) motors, remagnetization is needed to recover its magnetic power. In this paper, pulse magnetizing process of sintered NdFeB magnet has been studied. Combining with calculated electromagnetic field distribution by Maxwell 3D FEM software, critical magnetic field to saturate the sintered NdFeB magnet is determined through experiment. Preliminary result shows that pulse magnetic field needed to saturate NdFeB magnet has something to do with its historic magnetization process. Furthermore, once the saturated NdFeB magnet is demagnetized, it will be much harder to resaturate the NdFeB than initial saturation.
Keywords :
"Saturation magnetization","Magnetic flux","Magnetic fields","Demagnetization","Superconducting magnets","Magnetic field measurement","Magnetization"
Conference_Titel :
Applied Superconductivity and Electromagnetic Devices (ASEMD), 2015 IEEE International Conference on
Print_ISBN :
978-1-4673-8106-2
DOI :
10.1109/ASEMD.2015.7453628
