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多圈共轴线圈产生错位对激励磁场的影响 被引量:2
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作者 刘雪萍 董全林 +1 位作者 赵伟霞 张春熹 《计量学报》 CSCD 北大核心 2015年第2期187-192,共6页
研究了多圈共轴线圈产生错位情况下其在空间激励磁场的分布变化,用最基本的毕奥.萨伐尔定律和叠加定理推算出磁场公式,并借助MATLAB软件计算出磁感应强度变化的数值解,绘制出线圈轴上和中心平面上的磁场变化分布图等。由此判断出磁... 研究了多圈共轴线圈产生错位情况下其在空间激励磁场的分布变化,用最基本的毕奥.萨伐尔定律和叠加定理推算出磁场公式,并借助MATLAB软件计算出磁感应强度变化的数值解,绘制出线圈轴上和中心平面上的磁场变化分布图等。由此判断出磁感应线圈缠绕规则性对激励磁场分布的影响,对于一定精度磁场的产生给出合理的理论建议。计算结果表明,线圈偏移量与平均半径比值不大于0.04时,轴上磁感应强度变化在10^-11T量级,中心平面上磁场相对变化不超过1%。 展开更多
关键词 计量学 磁场分布变化 毕奥.萨伐尔定律 非共轴线圈 MATLAB
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Mutual Inductance Calculation Between Arbitrarily Positioned Polygonal Coils
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作者 ZHANG Zijian SHAO Ming +5 位作者 SHANG Kai LI Xuekong HUANG Chunliang SHI Jinku CUI Huaxian DONG Yangyang 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI CSCD 2022年第S01期120-126,共7页
Polygonal coil systems are designed for increasing and more kinds of sensors and electromagnetic systems.This paper presents a method for calculating mutual inductance between polygonal coils including irregular polyg... Polygonal coil systems are designed for increasing and more kinds of sensors and electromagnetic systems.This paper presents a method for calculating mutual inductance between polygonal coils including irregular polygons.Based on the Biot-Savart law,the method calculates mutual inductance by dividing a polygonal coil into finite wires,and expresses the magnetic induction intensity generated by the excitation coil as a function of the spatial position of each vertex of the coil.The calculation method of the feasible region of the objective function is updated and the calculation process is simplified,so the calculation accuracy is improved.For octagon coils arbitrarily positioned in space,the accuracy of the algorithm is verified by the simulation and experiment. 展开更多
关键词 mutual inductance polygonal coils Biot-Savart law arbitrary position
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