electromagnetic focusing

电磁聚焦

双语例句

Time-reversed electromagnetic wave not only has the property of spatial and temporal focusing in common circumstance, but also of super-resolution in some special circumstances. 时间反演电磁波不仅具有空时聚焦特性，在适当的环境下，还能展现出超分辨率特性。

The study shows that electromagnetic energy can be focused in the Fresnel or near re-gion The field intensity goes up rapidly as the aperture size becomes larger. Long distance focusing can be achieved only using very large antenna apertures. 研究表明：电磁能可以聚焦在菲涅耳区或近区，口径增大时聚焦强度迅速提高，长距离的电磁能聚焦必须进行大口径天线的研究和应用。

According to the special measurement requirements of the magnetic field distribution of radar electromagnetic focusing system, a automatic measurement system based on vision localization is developed. 针对雷达电磁聚焦系统磁场分布的特殊检测要求，开发了一套基于视觉定位的磁场分布自动检测系统。

In the present study, an aberration theory for both wide and narrow electron beams in a combined electromagnetic focusing spherical cathode lens system is discussed. 本文研究了对宽束和细束阴极透镜普遍适用的电磁复合聚焦球面阴极透镜的象差理论。

Accurate Calculation of Influence of Electrode Perturbation in Electromagnetic Focusing System on Particle Trajectory 精确分析电磁聚焦系统结构参数微小变化对粒子轨迹的影响

Electron optical aberration theory for angularly wide and transversely large electron beams in electromagnetic focusing systems with curvilinear axes has been further developed. 本文研究了宽束大物面电磁聚焦系统弯曲轴电子光学象差理论。

Particularly, in recent years, the researchs on electromagnetic shielding and absorbing materials is becoming a focusing field in physics, chemistry, materials science. 特别是，电磁屏蔽与吸波材料的研究正成为近年物理、化学及材料学领域的研究热点之一。

The surface enhancement of Raman scattering is ascribed to the enhancements of the electric field in the cavity by the coupling of the surface plasmon resonance and light and electromagnetic energy density due to the focusing effect of the cavity structure. 拉曼散射的表面增强被归因于纳米球腔阵列的协同表面等离子体共振与光的耦合导致的电磁场增强以及纳米球腔结构对电磁场的聚焦效应而使球腔内电磁场能量密度的增大。

A Numerical Method to Magnetic Field Problems of Electromagnetic Focusing System of High Resolution Project Tube 投影管磁聚焦系统场分布的数值计算

It is clearly shown that the electromagnetic instability of the system results from the coupling of the TM mode in ion-channel to the beam mode via the electron beam. Ion beam focusing is the microscopic mechanism. 结果表明，系统的电磁不稳定性是由离子通道中TM模与电子注模通过电子注耦合所致，其微观机理是离子对电子注的聚焦。

Based on EMT method, this thesis studies Electromagnetic Compatibility ( EMC) of power electronic equipment in locomotive, focusing on aperture coupling and near-field cable coupling. Firstly, the status of EMT, ***ysis method and its advantages are briefly introduced. 本文基于电磁拓扑学的研究方法，对铁路机车电力电子系统的电磁兼容性进行了研究，重点是孔缝和电缆近场耦合问题。

In this dissertation, we study the statistical optical properties of the stochastic electromagnetic beams propagating in turbulent atmosphere and optical systems by using the vector theory. We consider the complicated conditions of apertured, focusing, imaging, and the optical Hartley transform. 于此背景之下，本论文重点研究了矢量理论框架下的随机电磁光束通过湍流大气和光学系统传输的统计光学特性，分别考虑了光阑、聚焦、成像等复杂传输条件以及光束的Hartley变换。