Field acceleration method is a new control method for induction motor. Its electro-magnetic process can be analysed with the transient equivalent circuit.
磁场加速法是一种新型、高性能的感应电动机控制方法，其电磁过程可用暂态等值电路进行分析。
2
Introducing the principle, construction and technological parameters of machine tool changement. This paper calculates some design data such as electro-magnetic induction circuit and coil.
介绍机床改装原理、结构和技术参数，对电磁感应器磁路及电磁线圈参数进行了有关的计算。
3
According to the work of magnetic force, the relationship between inductionelectro motive force and the energy change in magnetic field is analysed.