利用耦合波理论分析了影响体积全息图的衍射效率的因素、体积全息图的角度选择性以及波长带宽等方面。
The factors which influence holography diffraction efficiency, the Angle selectivity of volume holography and wavelength bandwidth are analyzed with the coupled wave theory.
对近期提出的克服电网分布电容影响小电流接地选线的零序直流选择性保护原理作了理论分析。
This paper analyses the existing zero sequence directive current selective leakage protection principle which is to surmount the effect of distributed capacitance on it.
理论上分析可以得到，这两个参数不受外部故障和励磁涌流的影响，因此具有很好的选择性。
It is found that the two parameters aren't influenced by external fault and magnetizing inrush current, which ensures good selectivity.
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