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Research on magnetic uniformity Performance of two kinds of saddle Coils for Magnetic Shielding |
DING Ying1,2,3,DONG Quan-lin1,2,3,ZHAO Wei-xia1,2,3,LI Ru-jie2,3,FANG Jian-cheng2,3 |
1.School of Instrumentation Science and Opto-electronics Engineering, Beihang University, Beijing 100191, China
2.Science and Technology on Inertial Laboratory, Beijing 100191, China
3.Key Laboratory of Micro-nano Measurement-Manipulation and Physics, Beijing 100191, China |
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Abstract The essay established mathematical models of two kinds of saddle shim coils under the Cartesian coordinates based on the Biot-Savart Law,the general characteristic of magnetic field distribution has been numerical analyzed in radial direction. Meanwhile, utilizing Matlab software to optimize the coils parameters under theoretical deduced optimum structure, the magnetic field uniformity area and the deviation relative to center magnetic field intensity in axis and cubic space produced by these two kinds of saddle coils are compared under the optimum magnetic uniformity .Additionally, homogeneous magnetic field effective space area of these two kinds of saddle coils is given on the condition of its relative deviation less than 1%,which provided the theoretical basis and reference for the design and research of the radial dimensional of magnetic field compensation system.
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Received: 27 May 2015
Published: 14 October 2016
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