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- A large phase-shifting Fizeau interferometer is used for the measurement.The phase wavefront detected by the interferometer is digitally processed to create one dimension wavefront PSD. 探讨了大口径光学元件波前的高空间分辨率检测技术,采用大口径相移干涉仪作为波前检测仪器,通过傅里叶变换获得波前一维功率谱密度分布。
- wavefront PSD 波前功率谱密度(PSD)
- The critical technique in PSD testing is solved. 解决了PSD器件实验中的关键技术问题。
- Generally one deals only with a small portion of a wavefront. 一般我们只涉及一个波阵面的一小部分。
- A single cylindrical wavefront impinges on both prisms. 一个圆形波阵面射到两个棱镜上。
- Using simulated single-frequency wavefront,PSD values before and after applying Hanning window were computed and a modification factor was deduced using theory of Fourier transform. 通过对模拟的单一频率波前加窗前后的功率谱密度的理论计算,由傅里叶变换性质推导出了修正因子,并对波前频率与修正因子的关系进行了理论研究。
- The sediments of Core MD98-2182 are dominated by PSD magnetite. MD98-2182岩芯中的磁性颗粒以PSD磁铁矿为主。
- PSD and ADL appear in a obvious negative correlation(P<0. 05) . PSD与ADL呈显著负相关(P<0.;05)
- A novel self-referenced Hartmann wavefront sensor[J]. 引用该论文 曹根瑞;朱秋东;苏鹏.
- PSD pattern was not shown within 10 weeks after onset. 发病后10周内无1份出现PSD模式。
- In this system, the wavefront sensor is the most important part. 在这个系统中,波前探测器是其中的关键器件。
- At each interface the spreading wavefront is made discontinuous . 在每一分界面上扩展的波前出现间断。
- The resulting distortions in the wavefront generate the fringe contours. 波阵面上发生的畸变生成了条纹线。
- Then wavefront reconstruction is achieved using Zernike polynomical fitting. 然后利用泽尼克多项式拟合,实现波前重建;
- Conduct the Rig/component Testing, PSD testing and Electro-dynamic testing. 进行台架/零部件试验,PSD(功率谱密度)测试和电力学测试。
- And Grp A will conduct training in the flowing 4 departs, FOD, ISD,PSD and ENG. 我们将在航务、乘务、人事和工程四个部门进行培训。
- Glossy Colourful Buttons. Feel free to change anything you want. PSD File. 七彩光泽按钮。随意改变任何你想要的。PSD文件。
- Ending, derived the JPG or the PSD , and adjust the final results using PS. . 完成;导出JPG或PSD格式;在PS里调整最后的效果.
- New testing method for cone prism based on Hartmann-shack wavefront sensor[J]. 引用该论文 张金业;李松;周辉;郑国兴;李翠玲.
- The wavefront error requirement for the final on orbit telescope is 63 nm rms. 正样望远镜对于波前误差的要求是均方根63纳米。