A circular opening in an opaque screen transmits only a small circular patch of a wave surface . 不透明屏上一个圆孔仅仅透射波面的一小圆块。
This particulate matter carried along by the blast waves does not necessarily affect the overpressures at the shock front . 这些由爆震所携带的微小物体并不一定影响冲击波波面上的超压力。
Gravitational wave surface 重力波面
Standard test method for short term creep performance of corrugated fiberboard containers under constant load using a compression test machine 用压缩试验器测试恒定负荷下波面纤维板容器的短期蠕变性能的标准试验方法
By using random wave theory and directional wave spectrum , a matlab - platformed program is designed to simulate random wave crests for various directional spectral conditions in deep water 在此基础上,利用临界值对波面进行切割,得到位于临界值以上的三维波峰。
After that , algorithms about the analysis of interferogram were realized in matlab . the related program analyzes the interferogram , and gives the three dimension profile of sample surface 建立了干涉图像的采集、位相计算、消跳变处理和波面拟合的相关算法,并用软件实现了这些算法。
Because the computer optical elements can shape the laser beam to arbitrary shape , so , in this paper we mainly study the design and the experiment of the computer optical elements 由于计算机光学元件能充分有效地产生任意形状的光波波面,所以,本文主要涉及到研究计算机光学元件的理论设计、计算机模拟、实验研究。
The digital wavefront interferometer is discussed based on the phase shifting interferometry ( psi ) . the techniques about wavefront retrieve and automatic optical measurement are studied in this paper 本文以数字波面干涉仪为研究对象,在移相干涉术的基础上,研究波面复原技术、光电一体化技术和智能化测试技术。
The physical experiments give the series of wave records under the interaction between surface waves and sandbars on the seabed . based on the series of wave records , reflection coefficients are calculat ed by goda ' s method and the bragg resonance are obtained 对物理模型试验得到的波浪与正弦沙坝地形相互作用的波面序列,用goda的两点法计算出反射系数,较好地反映出了bragg共振现象。
More attentions are taken to the applications of the interferometer for the quantificational and real - time measurements in the following aspects : the laser ' s wavefront , the homogeneity of laser bar , angle deviation of flatness optical components , and surface roughness 重点研究了数字式波面干涉仪的应用,定量、实时测量了激光波前质量、激光棒波前畸变、利用波面计算锥体棱镜角度、表面粗糙度等。