自感

By means of Barty's transformation this method can calculate the matrix of self and mutual inductance quickly and accurately. The coil thickness and resistances were considered also, which makes the results more convincing.

其中借助Barty变换可以快速准确地计算自感、互感系数矩阵，并且考虑包封厚度和电阻的影响，使结果更加真实。

By means of Bartys transformation this method can calculate the matrix of self and mutual inductance quickly and accurately. The coil thickness and resistances were considered also, which makes the results more convincing.

其中借助Barty变换可以快速准确地计算自感、互感系数矩阵，并且考虑包封厚度和电阻的影响，使结果更加真实。

This article expatiated on the structure and principle of coreless transformer in printed circuit board, introduced and analysed the Hurly_duffy's method to calculate the self and mutual inductance of coreless transformer in printed circuit board in which I found the fault, re-modified the current unit model, deduced a new formula used commonly, and offered testing process and circuit as well as mended the structure of coreless transformer which made the analysis easy.

本文阐述了无芯印制板变压器的基本结构和原理，介绍和分析了Hurly-duffy 的无芯印制板变压器自感和互感的计算方法，指出了它的不足，在纽曼公式的基础上，重新修正了电流元模型，将线圈看作是粗线圈，推导出普遍适用的计算公式，并给出了测试方法和测试电路。

DPMSM can not meet the presuppositions of the Park transformation due to the fact that the mutual inductance is far more less than the self inductance.

由于DPMSM各相绕组之间的互感远远小于自感，DPMSM特殊工作原理使其在控制技术上存在特殊性。

To supply power for the appliances in high-speed EMS-maglev (electromagnetic suspension- magnetically levitated) vehicles, the position functions of self and mutual inductance in the linear generator were derived.

为解决高速电磁型高速磁浮车辆供电问题，推导了直线发电机线圈自感及互感位置函数。

Because the 2nd harmonic of self inductance is larger than that of the mutual inductance, which is not agree with Park transform, so the saturated mathematical model under a, b, c phase coordinate system of pulsating magnetic field permanent magnet low speed synchronous motor is constructed.

利用有限元方法计算了脉振磁场永磁低速同步电动机参数变化规律，由于自感二次成分远大于互感二次成分，不满足Park变换条件，在a、b、c相坐标下建立电机饱和数学模型。

Electromagnetics course mainly including basic phenomena and laws of electro- magnetics, electrostatic field in vacuum, in conductor and in electric medium, electric energy, stabilized current, stabilized magnetic field and its basic laws, electric and magnetic fields caused by a moving chager in lower speed, the transform of electric and magnetic fields between different systems of coordinates, inductive laws, eddy field, self inductance, mutual inductance and transient, molecule current and magnetic substance, ferromagnet, boundary conditions, magnetic circuit theorem, energy of magnetic field and density of magnetic energy, displacement current, Maxwell's equation, electromagnetic wave, Poynting vector.

电磁学课程的主要内容包括：静电的基本现象和基本定律，真空中的静电场，导体和电介质中的静电场，电场的能量与电场能量密度，稳恒电流，稳恒电流磁场的基本定律，运动电荷的电磁场，不同参照系之间电磁场的变换，电磁感应定律，涡旋电场，互感，自感，暂态过程，分子电流与磁介质，铁磁体，边界条件，磁路定理，磁场的能量和磁能密度，位移电流， Maxwell 方程组，电磁波和玻印廷矢量等。

Using simple device, the demonstration experiments of demagnetization and self induction are redesigned.

利用简易装置对高中教材中的退磁和自感演示实验进行了再设计，介绍了演示方法，并对实验现象给出了解

A theoretical analysis is presented for the factors influencing maximum self-induced EMF in transient process in RL circuit.

对RL电路的暂态过程中影响自感电动势最大值的因素进行了理论分析，并应用不同的仪器和方案进行了实验验证。

The validity of mathematical model of DR-BLDCM and calculating method of self-inductance and mutual-inductance are verified.

仿真曲线与DR-BLDCM电动舵机实际系统试验结果一致，从而验证了DR-BLDCM自感和互感算法及此类系统模型的有效性。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。