aperture ratio

Based on frauhofer diffraction integral formula, the calculation and testing method of I_0 ( annulation)/ I_0 ( aperture) for different obstruction ratio of double reflection optical system are described in this paper.

本文从夫朗禾费积分公式出发，论述了不同遮拦比的双反射光学系统I0（环）/I0（孔）的计算与测试方法，并通过计算和测量获得了有实用价值的数据。

It was found that at the same superficial gas velocity, bubble frequency and rise velocity are independent on the aperture ratio, hole diameter and baffle plate distance ( the ratio of the baffle plate distance to the bed diameter is smaller than 3).

结果表明，在一定的气速下，挡板的开孔率、孔径和板间距（级间高径比小于3）对气泡频率和气泡速度的影响较小；

The results showed that larger momentum ratio, narrower width of the aperture, and 90 ° angle between wall jet and axial flow promoted a better flow field in the mixing zone.

结果表明，较大的气流动量比、窄射流狭缝宽度和接近90°的射流能获得更好的混合区速度分布。

The slip ratio reduces with the increasing of aperture ratio.

随着孔径比的增大，滑动比减小。

Design of Black Matrix for TFT LCD with High Aperture Ratio

高开口率TFT LCD的黑矩阵设计