Using Biot-Savart law and the Feynman's model, the paper suggested a simple method to calculate the magnetic field generated by a current loop with arbitrary shape.
文章根据毕沙定律、电流回路元和载流线圈的费曼模型，用普通物理的方法计算出载流线圈在远处一点的磁场分布。
The authors provide a kind of new method by which magnetic field distribution in Helmholtz loop is measured.
给出了一种测量亥姆霍兹线圈磁场分布的一种新方法。
Then a vector control method with speed closed-loop and magnetic linkage closed loops put forward, which is based on the constant velocity by means of stator flux-oriented vector control.
在基于定子磁场定向的矢量控制恒线速运行控制方案的基础上，提出了一个速度闭环、磁链闭环的矢量控制方案。
The paper presents a principle and method of automatic measuring and plotting magnetic material's magnetic hysteresis loop via computer's parallel port have the aid of A/D transition adapter.
介绍借助A/D转换板，通过微机并行口实现铁磁材料磁滞回线自动测绘的原理与方法。
The magnetic field of dry-type air core reactor with spatial closed loop is calculated with analytic method. And the effect of closed loop on parameters of a reactor is explored.
用解析方法计算了存在空间闭合环路时干式空心电抗器的磁场，并对闭合环路影响电抗器参数的状况进行了探讨。
An easier method of measuring Curre Points of ferromagnetic materials has been presented through an experiment. Its principle is to observe the disappearance of the magnetic hysteresis loop.
本实验描述了一种测量铁磁性材料居里点的方法，其原理是观察磁滞回线的消失。
Danfoss Variable speed driver can drive the permanent magnetic motor via open-loop or close-loop method.
丹佛斯变频器可以开环或闭环方式驱动交流永磁同步电机。
Danfoss Variable speed driver can drive the permanent magnetic motor via open-loop or close-loop method.
丹佛斯变频器可以开环或闭环方式驱动交流永磁同步电机。
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