基于Simdroid软件对毕奥–萨伐尔定律验证实验的辅助教学

大学物理实验是普通高等学校面向理工类学生开设的公共必修课程中的一门重要课程。将Simdroid虚拟仿真平台与大学物理实验相结合,对教学方法进行创新改革。本文以长直导体和圆环形导体回路激发的磁场为研究基础,利用Simdroid软件模拟磁场分布,有利于学生对毕奥–萨伐尔定律的理解,提升学生的实验效率。

毕奥–萨伐尔定律课程思政教学研究与实践

文章针对《毕奥–萨伐尔定律》这节课进行了课程思政教学研究与实践,利用问题导向式教学方法进行大学物理课程思政教学、引导学员开展参与式自主研究性学习。在讲解知识的过程中潜移默化地培育学员的辩证唯物主义世界观以及不断进取的科学精神和科学态度,培养学员的理性思维方法。通过量化的实证性分析得出大学物理课程思政教学的实施效果。

磁场中的高斯定理另一证明

用与毕奥–萨伐尔定律等价的运动电荷产生磁场的第一性原理证明了磁场中的高斯定理,该证明对进一步理解磁场的本质和大学物理教学有一定的借鉴作用。

Mutual Inductance Calculation Between Arbitrarily Positioned Polygonal Coils

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.