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Measuring method of saturation magnetization for grain-orientedsilicon steel sheet in magnetic resonance imaging(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2018年05期
Page:
560-
Research Field:
Publishing date:

Info

Title:
Measuring method of saturation magnetization for grain-orientedsilicon steel sheet in magnetic resonance imaging
Author(s):
Li Li12Ping Xuewei1Yin Xinghui1Mou Shanxiang2
1.College of Computer and Information Engineering,Hohai University,Nanjing 211100,China; 2.School of Electronic and Optical Engineering,Nanjing University of Scienceand Technology,Nanjing 210094,China
Keywords:
silicon steel sheets saturation magnetization passive shimming magnetic resonance imaging gradient coils superconducting magnet
PACS:
TM154
DOI:
10.14177/j.cnki.32-1397n.2018.42.05.008
Abstract:
A measuring method of saturation magnetization for oriented silicon steel sheets in engineering application is proposed here. Silicon steel sheets are placed into the shim rails distributed on the gradient coils and the axial magnetization of sampling points is measured through using the magnet field camera. The saturation magnetization of grain-oriented silicon steel sheets is obtained by iterative optimization algorithms. The result of the saturation magnetization can make the passive shimming of the magnetic resonance imaging system more efficient and improve the imaging quality. The method is convenient and easy for practice use. It needs less computation load and is more efficient.

References:

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Last Update: 2018-10-30