分析了电压型逆变器供电的永磁同步电动机对定子漏抗的要求,确定了电磁负荷以及定子槽形等参数的选取原则。
The requirement for leakage reactance on stator of PMSM supplied by voltage type inverter is analyzed, and some parameters are selected, such as electromagnetic load, slots shape of stator and so on.
天线的分形设计是电磁理论与几何学的融合。
The fractal design of antennas is the combination of electromagnetic theory and geometry.
它比常见的E形叠片电磁铁铁芯结构紧凑,性能更好。
It is more compact and effective than the usual E- shaped solenoid stator.
在此基础上,对背腔式分形微带贴片天线的电磁散射特性进行了计算和分析。
Then, a number of numerical results for microstrip fractal patch antennas residing in a cavity are presented.
对一种柱面电磁带隙结构应用于圆柱共形偶极子振基站天线进行了研究。
In this paper, a kind of cylindrical EBG structures applied to base station cylindrical conformal dipole array antennas is studied.
天线元具有调整与脊形部分相对应的天线特性的脊形元单元(21)、和用于电磁波辐射的辐射元单元(22)。
The antenna element has a ridge element unit (21) for adjusting antenna characteristic corresponding to a ridge portion and a radial element unit (22) for electromagnetic wave radiation.
通过讨论过冷度的变化对形核率的影响,研究了电流产生的电磁力效应及焦耳热效应对过冷度的影响,建立了电流与过冷度的关系式。
According to classical solidification theory and the mechanism of solidification microstructure under pulse current, the effect of super-cooling degree variation on nucleation rate was discussed.
合理地设计金属树枝单元的几何参数,六边形边长以及晶格周期,产生电磁谐振。
The geometric parameters, the hexagonal side length and the lattice period of the metal dendritic array units are reasonably designed to generate electromagnetic resonance.
分形几何与经典的电磁理论结合产生了分形天线系统理论。
Fractal geometry, combining with classic electromagnetic theory, has produced the fractal antenna system theory.
弦变线电流阵列在球面上电磁场及功率密度流之时变向量与三维场形。
The3- D Vector and Pattern of Electromagnetic Field and Power Density on a Sphere from an Array of Time Harmonic Current.
弦变线电流阵列在球面上电磁场及功率密度流之时变向量与三维场形。
The electric current density vector field also satisfies superposition principle, some applications thereof are introduced.
弦变线电流阵列在球面上电磁场及功率密度流之时变向量与三维场形。
The electric current density vector field also satisfies superposition principle, some applications thereof are introduced.
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