[电磁] 电磁场
This paper focuses on the electromagnetic field computation and inverse electromagnetic field problem of switched reluctance motor.
本文对开关磁阻电动机电磁场分析与逆问题计算进行了深入系统的研究。
A new method(field analysis method) is presented to calculate gap-impedance in a klystron output circuit based on the analysis of the electromagnetic field components and microwave circuit theory.
从分析速调管输出回路的电磁场分量入手，结合微波电路理论，提出了计算速调管输出回路间隙阻抗的场分析法。
Based on researching the shaft bearing replacer this paper built the models of electromagnetic field and vortex density in bearing race snap being induction heating .
摘要在研究轴承内环感应拆装的基础上，建立了感应加热过程中工件内电磁场和涡流分布的基本方程。
The formulae of reflecting coefficient are derived from the theory of electromagnetic field for arbitrary incident electromagnetic wave to radar absorbing material.
从电磁场理论出发，推导出了电磁波以任意角入射时雷达吸波材料的反射系数公式。
Time Domain Transient Electromagnetic Field(TDTEF) is a frontier branch of modern electromagnetics.
时域瞬态电磁场是现代电磁学的前沿研究领域。
A steady state plasma is maintained by electromagnetic field and ambipolar diffusion of charged particles is caused by electrostatic field of space charge.
放电为磁场激励型，稳定的等离子体由电磁场所维持，空间电荷产生的静电场引起荷电粒子的双极扩散。
It is of great theoretical significance and practical value to research the electromagnetic coupling of the transient electromagnetic field to secondary cable in substations.
研究变电站瞬态电磁环境下二次电缆的电磁耦合问题具有极为重要的理论意义和实用价值。
Based on theory analysis of metal solidification and hydrodynamics, momentum convection generated by rotating electromagnetic field do not improve feeding obviously.
据金属凝固理论和磁流体力学分析，电磁搅拌力引起的动量对流对补缩的促进作用并不大。
The frequency and intensity of electromagnetic field change the frequency and amplitude of the calcium oscillation.
电磁场的频率、强度（调制因子）引起钙振荡的频率和幅值发生变化。
A capacitive proximity switch works with a high frequency oscillating circuit that creates an electromagnetic field on the active sensor surface by means of a capacitor.
阿电容式接近开关工程高的振荡电路，产生的积极传感器表面磁场的电磁通过一个电容手段的频率。
This paper introduces the design method for intensive electromagnetic field measuring system with respect to multi sensor data fusion and virtual instruments.
本文主要从多传感器数据融合和虚拟仪器两方面介绍了一种电磁场强测量系统的设计方法。
Also such electromagnetic field changes could be affecting migrating birds and the navigational ability of fish.
这种电磁场的变化同样还会影响正在迁徙的鸟和鱼的导航能力。
By dealing with the calculation result of the electromagnetic field, the waveshapes of the rotated electromagnetic field and the voltage are obtained.
通过对电磁场计算结果的后处理，得出了同步发电机的旋转磁场波形和电压波形。
So, numerical calculation technology of electromagnetic field and imploring a novel calculation method are great value subject.
因此，电磁场的数值计算技术，探索新的计算方法，是一个很有价值的课题。
The electromagnetic field and the electromagnetic wave objective law describes with the Maxwell equation set and other mathematical expression.
电磁场与电磁波的客观规律用麦克思韦方程组和其他一些数学表达式描述。
This paper discusses the quantum form of the system in the electromagnetic field.
本文讨论了处于电磁场中的体系的量子力学形式。
Anything that can affect an electromagnetic field can affect a change in one's aura.
能作用电磁场的任何事物都能够影响一个人光环的改变。
Using the finite difference method we calculate the distribution of the electromagnetic field.
利用有限差分法实现了其正演计算，获得了电磁场的分布。
On the basis of experiment, the influence of impressed electromagnetic field on fire transmission speed and overpressure in gas explosion was investigated.
在实验的基础上，研究了外加电磁场对瓦斯爆炸过程中火焰传播速度和超压的影响。
On the basis of experiments, the influence of impressed electromagnetic field on flame propagation speed and overpressure in gas explosion was investigated.
在实验的基础上，研究了外加电磁场对瓦斯爆炸过程中火焰传播速度和超压的影响。
The microwave reflectance (MR) of the concrete atmosphere interface has been researched with electromagnetic field theory.
运用电磁场基本理论，研究混凝土—空气界面对微波的反射系数。
His equations on the electromagnetic field were essential for the Special Theory of Relativity, by one Albert Einstein.
他关于电磁界提出的诸多理论就相当于爱因斯坦提出的相对论一样，不可磨灭。
However, the theory ignores the interaction between the electron and a quantized electromagnetic field .
不过，该理论忽略了电子与量子化的电磁场之间的相互作用。
Use of the numerical analysis of the general principles calculation of electromagnetic field procedures.
利用普通的数值分析原理计算电磁场中的问题的程序。
An electromagnetic field numerical method is put forward to analyze shielding effectiveness of the infinite thin conductor and ***lectric sheet based on the FDTD.
提出了基于时域有限差分算法的计算无限大导体和介质薄片电磁屏蔽效能的电磁场数值计算方法。
Its task is learning the basic theory of electromagnetic field and wave and the basic analysis method based on the higher mathematics, university physics.
其任务是在高等数学、大学物理的基础上学习电磁场与波的基本理论和基本分析方法。
With optical displacement meter, non-electricity detection can be realized, which helps to avoid the effect of strong electromagnetic field and humidity.
利用光学测量变形，可以实现探测器无电化设计，使得测量不受强电磁场和湿度的影响。
电磁场（electromagnetic field）是物理学和工程学中描述电荷运动所产生相互作用的核心概念，由相互关联的电场和磁场共同构成。根据经典电磁理论，当电荷发生加速运动时，会激发变化的电场与磁场，二者以横波形式在空间中传播，形成电磁波。这一现象由麦克斯韦方程组完整描述，其微分形式可表示为：
$$
abla cdot mathbf{E} = frac{rho}{epsilon_0}
abla cdot mathbf{B} = 0
abla times mathbf{E} = -frac{partial mathbf{B}}{partial t}
abla times mathbf{B} = mu_0 mathbf{J} + mu_0 epsilon_0 frac{partial mathbf{E}}{partial t} $$
在工程应用领域，电磁场理论是无线通信、电机设计和微波技术的基础。例如，变压器通过铁芯中交变磁场实现能量传递，而天线设计则依赖电磁场在自由空间的辐射特性。根据量子电动力学理论，电磁场还具有粒子性，其能量以光子形式量子化传播（参考《现代物理基础》第三版）。
该场的独特性质在于其传播无需介质支持，且场强随距离呈平方反比衰减。国际标准组织ISO 80000-6对电磁场量纲和单位制有明确定义，相关技术规范可通过IEC官方网站查询。
电磁场（electromagnetic field）是物理学中的核心概念，指由带电物体或变化的电磁现象在空间中产生的物理场，由电场和磁场共同构成。以下是详细解释：
电磁场是电场和磁场的统一体：
两者通过麦克斯韦方程组相互关联，变化的电场会生成磁场，变化的磁场也会产生电场。
电磁场以波的形式传播，称为电磁波，其特性包括：
麦克斯韦方程组是描述电磁场的核心方程： $$ begin{aligned}
abla cdot mathbf{E} &= frac{rho}{epsilon_0}
abla cdot mathbf{B} &= 0
abla times mathbf{E} &= -frac{partial mathbf{B}}{partial t}
abla times mathbf{B} &= mu_0 mathbf{J} + mu_0 epsilon_0 frac{partial mathbf{E}}{partial t} end{aligned} $$
总结来说，电磁场是自然界中电荷与电磁相互作用的表现形式，其理论和技术应用深刻影响了现代科学与工程领域。
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