空间电荷密度 meaning in Chinese
space charge density
spacechargedensity
Examples
- The numerical computing methods of the equations involving the static electric - magnetic field , electronic motion in the static electric - magnetic field , and so on are detailed . the methods of the boundary disposal are introduced . the phenomenon of secondary electron emission has also been studied
介绍了数值计算方法,包括静电磁场的数值计算、在静电静磁场中电子运动轨迹的数值计算、空间电荷密度的数值计算和空间电位分布的数值计算;介绍了边界处理方法。 - With the use of finite method we have developed computer simulation software for vacuum microtriodes with wedge - shaped and cone - shaped cathode on the basis of stduying deeply the field emission theory of vacuum microelectronics . the software included field section , grid point numbering , and the calculation of electric currents , transconductance and cathode capacitance , moreover , it can simulate the properties of vacuum microeletronic with variant structures and sizes . the relationship was studied and simulated among electic properties and device structures , sizes and cathode materials etc . the optimized design of vacuum microtiode was proposed
本文在深入研究真空微电子器件场致发射理论的基础上，根据圆锥形、楔形阴极真空微电子三极管的不同特点，分别建立了物理和数学模型，在考虑空间电荷密度影响的前提下，以有限元法为基础采用迭代的方法计算出真空微电子三极管内的电势分布情况，绘制出了等势线、电子轨迹线，并得到了器件电学性能随几何参数的变化情况。