同时，通过改变消弧线圈铁芯结构，解决了在零励磁情况下电感的非线性问题，减少了铁磁谐振对电网造成的危害；

The core structure of the arc suppression coil is improved to solve the nonlinearity of voltage with zero-excitation. The harm of ferro-resonance is thus reduced.

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铁芯用于使放置在转子和定子中的线圈（由导体构成）之间的耦合最大，以增加电机的磁通密度以及减小电机尺寸。

The iron core is used to maximize the coupling between the coils (formed by conductors) placed on the stator and rotor, to increase the flux density in the machine and to decrease the size of machine.

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介绍一种新型的传感器部件，具有可移动铁芯的微型线圈。

A new sensor component- micro coil with a movable core was developed.

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