[電磁] 電磁場
This paper focuses on the electromagnetic field computation and inverse electromagnetic field problem of switched reluctance motor.
本文對開關磁阻電動機電磁場分析與逆問題計算進行了深入系統的研究。
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.
從分析速調管輸出回路的電磁場分量入手，結合微波電路理論，提出了計算速調管輸出回路間隙阻抗的場分析法。
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 .
摘要在研究軸承内環感應拆裝的基礎上，建立了感應加熱過程中工件内電磁場和渦流分布的基本方程。
The formulae of reflecting coefficient are derived from the theory of electromagnetic field for arbitrary incident electromagnetic wave to radar absorbing material.
從電磁場理論出發，推導出了電磁波以任意角入射時雷達吸波材料的反射系數公式。
Time Domain Transient Electromagnetic Field(TDTEF) is a frontier branch of modern electromagnetics.
時域瞬态電磁場是現代電磁學的前沿研究領域。
A steady state plasma is maintained by electromagnetic field and ambipolar diffusion of charged particles is caused by electrostatic field of space charge.
放電為磁場激勵型，穩定的等離子體由電磁場所維持，空間電荷産生的靜電場引起荷電粒子的雙極擴散。
It is of great theoretical significance and practical value to research the electromagnetic coupling of the transient electromagnetic field to secondary cable in substations.
研究變電站瞬态電磁環境下二次電纜的電磁耦合問題具有極為重要的理論意義和實用價值。
Based on theory analysis of metal solidification and hydrodynamics, momentum convection generated by rotating electromagnetic field do not improve feeding obviously.
據金屬凝固理論和磁流體力學分析，電磁攪拌力引起的動量對流對補縮的促進作用并不大。
The frequency and intensity of electromagnetic field change the frequency and amplitude of the calcium oscillation.
電磁場的頻率、強度（調制因子）引起鈣振蕩的頻率和幅值發生變化。
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.
阿電容式接近開關工程高的振蕩電路，産生的積極傳感器表面磁場的電磁通過一個電容手段的頻率。
This paper introduces the design method for intensive electromagnetic field measuring system with respect to multi sensor data fusion and virtual instruments.
本文主要從多傳感器數據融合和虛拟儀器兩方面介紹了一種電磁場強測量系統的設計方法。
Also such electromagnetic field changes could be affecting migrating birds and the navigational ability of fish.
這種電磁場的變化同樣還會影響正在遷徙的鳥和魚的導航能力。
By dealing with the calculation result of the electromagnetic field, the waveshapes of the rotated electromagnetic field and the voltage are obtained.
通過對電磁場計算結果的後處理，得出了同步發電機的旋轉磁場波形和電壓波形。
So, numerical calculation technology of electromagnetic field and imploring a novel calculation method are great value subject.
因此，電磁場的數值計算技術，探索新的計算方法，是一個很有價值的課題。
The electromagnetic field and the electromagnetic wave objective law describes with the Maxwell equation set and other mathematical expression.
電磁場與電磁波的客觀規律用麥克思韋方程組和其他一些數學表達式描述。
This paper discusses the quantum form of the system in the electromagnetic field.
本文讨論了處于電磁場中的體系的量子力學形式。
Anything that can affect an electromagnetic field can affect a change in one's aura.
能作用電磁場的任何事物都能夠影響一個人光環的改變。
Using the finite difference method we calculate the distribution of the electromagnetic field.
利用有限差分法實現了其正演計算，獲得了電磁場的分布。
On the basis of experiment, the influence of impressed electromagnetic field on fire transmission speed and overpressure in gas explosion was investigated.
在實驗的基礎上，研究了外加電磁場對瓦斯爆炸過程中火焰傳播速度和超壓的影響。
On the basis of experiments, the influence of impressed electromagnetic field on flame propagation speed and overpressure in gas explosion was investigated.
在實驗的基礎上，研究了外加電磁場對瓦斯爆炸過程中火焰傳播速度和超壓的影響。
The microwave reflectance (MR) of the concrete atmosphere interface has been researched with electromagnetic field theory.
運用電磁場基本理論，研究混凝土—空氣界面對微波的反射系數。
His equations on the electromagnetic field were essential for the Special Theory of Relativity, by one Albert Einstein.
他關于電磁界提出的諸多理論就相當于愛因斯坦提出的相對論一樣，不可磨滅。
However, the theory ignores the interaction between the electron and a quantized electromagnetic field .
不過，該理論忽略了電子與量子化的電磁場之間的相互作用。
Use of the numerical analysis of the general principles calculation of electromagnetic field procedures.
利用普通的數值分析原理計算電磁場中的問題的程式。
An electromagnetic field numerical method is put forward to analyze shielding effectiveness of the infinite thin conductor and ***lectric sheet based on the FDTD.
提出了基于時域有限差分算法的計算無限大導體和介質薄片電磁屏蔽效能的電磁場數值計算方法。
Its task is learning the basic theory of electromagnetic field and wave and the basic analysis method based on the higher mathematics, university physics.
其任務是在高等數學、大學物理的基礎上學習電磁場與波的基本理論和基本分析方法。
With optical displacement meter, non-electricity detection can be realized, which helps to avoid the effect of strong electromagnetic field and humidity.
利用光學測量變形，可以實現探測器無電化設計，使得測量不受強電磁場和濕度的影響。
電磁場（electromagnetic field）是物理學和工程學中描述電荷運動所産生相互作用的核心概念，由相互關聯的電場和磁場共同構成。根據經典電磁理論，當電荷發生加速運動時，會激發變化的電場與磁場，二者以橫波形式在空間中傳播，形成電磁波。這一現象由麥克斯韋方程組完整描述，其微分形式可表示為：
$$
abla cdot mathbf{E} = frac{rho}{epsilon_0}
abla cdot mathbf{B} = 0
abla times mathbf{E} = -frac{partial mathbf{B}}{partial t}
abla times mathbf{B} = mu_0 mathbf{J} + mu_0 epsilon_0 frac{partial mathbf{E}}{partial t} $$
在工程應用領域，電磁場理論是無線通信、電機設計和微波技術的基礎。例如，變壓器通過鐵芯中交變磁場實現能量傳遞，而天線設計則依賴電磁場在自由空間的輻射特性。根據量子電動力學理論，電磁場還具有粒子性，其能量以光子形式量子化傳播（參考《現代物理基礎》第三版）。
該場的獨特性質在于其傳播無需介質支持，且場強隨距離呈平方反比衰減。國際标準組織ISO 80000-6對電磁場量綱和單位制有明确定義，相關技術規範可通過IEC官方網站查詢。
電磁場（electromagnetic field）是物理學中的核心概念，指由帶電物體或變化的電磁現象在空間中産生的物理場，由電場和磁場共同構成。以下是詳細解釋：
電磁場是電場和磁場的統一體：
兩者通過麥克斯韋方程組相互關聯，變化的電場會生成磁場，變化的磁場也會産生電場。
電磁場以波的形式傳播，稱為電磁波，其特性包括：
麥克斯韋方程組是描述電磁場的核心方程： $$ begin{aligned}
abla cdot mathbf{E} &= frac{rho}{epsilon_0}
abla cdot mathbf{B} &= 0
abla times mathbf{E} &= -frac{partial mathbf{B}}{partial t}
abla times mathbf{B} &= mu_0 mathbf{J} + mu_0 epsilon_0 frac{partial mathbf{E}}{partial t} end{aligned} $$
總結來說，電磁場是自然界中電荷與電磁相互作用的表現形式，其理論和技術應用深刻影響了現代科學與工程領域。
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