集总参数电路与磁路、热路的关联性教学

本文采用类比和关联方法,拓展电路中集总参数思想。通过将磁路、热路中相应的物理量与电路中的电流、电势、电阻进行类比和关联,帮助学生理解集总参数模型思想,掌握各物理量的涵义。通过对具体用电设备电动机的简单建模分析,促使学生将集总参数模型在其它电、磁、热的分析中能够融会贯通,应用电路理论所学知识,建立合理的物理模型及分析解决问题。

Connectedly Teaching Combing Lumped Parameter Electric Circuit with Thermal Circuit and Magnetic Circuit

The methods of analogy and connection are used to expand the lumped parameter concept in electric cir-cuit teaching to the magnetic and thermal circuits. The related physical quantities in the magnetic and thermal cir-cuits are compared with current,voltage,and resistance in electric circuit,which can help students understand the idea of the lumped parameter model and the physical conceptions in depth. Through establishing the magnetic and thermal circuit models,the lumped parameter models are used to make the association. It is expected to cultivate the studentsˊability of comprehensive analytical problem.