查询词典 Fresnel diffraction

In this paper, we have been solved Fresnel integral equations by the numerical iterative method in virtual confocal unstable cavity with the strip mirrors of cylindrical surfaces.

用数值迭代方法求解了柱面条状虚共焦非稳腔的积分方程组。对相同及不同的菲涅耳数NF和不同的放大率m等情况进行了数值计算。

When an image digital holographic microscopy layout is employed, the Fresnel integral cannot be used in separating the reconstructed image from its conjugate image and background.

在像面数字全息中，用菲涅尔衍射积分进行复振幅再现的方法已不适用，将相移同轴技术与数字全息显微术结合，研究了以平行光为参考光记录相移同轴像面显微数字全息图及其幅度和相位再现方法。

Because the transform matrix calculated with the Fresnel integral was non-unitary,YG algorithm was used to design the DOE realizing beam shaping in the fractional Fourier transform domain in this paper.

鉴于该变换矩阵非幺正，本文利用YG算法进行了光束整形器件的设计。

However, combining image plane DHM with the phase-shifting in-line technique, the complex amplitude of reconstructed image can be obtained without using Fresnel integral, moreover the approximate error of reconstruction calculation is easily eliminated and the signal-to-noise ratio of reconstructed image is significantly improved.

理论分析和实验证明，用这种方法无需使用菲涅尔积分即可直接获得再现像的复振幅，提高了再现像的信噪比，避免了再现中的近似误差。

We hope quality will be as good as German Fresnel.

我们希望质量跟德国Fresnel的一样好的。

The results of computer simulation can provide theoretical basis for the fabrication of Fresnel lens.

模拟计算结果对多阶菲涅耳透镜的制作提供重要的理论指导。

A method of making the Fresnel lens is described.

本文还描述了制造菲涅耳透镜的方法。

Based on the Fresnel principle, a method of the seawater salinity measurement using fiber is introduced.

本文提出了一种应用菲涅耳定理设计的光纤盐度测量方法。

Four kinds of laser source are used to measure the diffractive efficiency of Fresnel lens.

使用四种不同光源，对菲涅耳透镜的衍射效率进行测试。

The theoretical calculation and the experimental result of sixteen-step Fresnel are given.

给出了理论计算和16阶菲涅耳透镜的实验结果，证明了数据库方法设计掩模的可行性。

I hope that this success is just the first in a long series.

我希望这只是成功的开始。

Three dimensional stresses on the interface of tire and soil, tire deflection and soil sinkage are measured.

测试轮胎——沙土界面上的三向应力、轮胎变形和沙土沉陷；建立考虑剪切应力对沙土承载特性产生影响的车轮牵引性能预测模型；分析车轮作用下土壤的纵向稳定性。