英文翻译

In this work, the projected fringes were shifted using a mirror mounted on a rotary stage placed in the path of the illumination as shown schematically in Fig. 2(b). 在本文中，被投影的条纹用一个安装在旋转台上的反射镜偏移，而旋转台则放置在照明的路径上，就像图2（b）中示意的那样。The projector is a standard slide projector (Braun Novamat 130AF). 投影仪是一种标准的幻灯片投影仪（Braun Novamat 130 AF）。A sinusoidal grating was generated using a computer program written using Matlab and prepared onto a 35 mm slide. 用一个用Matlab编写的计算机程序产生一个正弦光栅，并被制备在一片35mm的幻灯片上。A 640×480 resolution monochrome CCD camera (JAI CV-M50) placed at approximately 600 mm from the object was used to capture the image. 采用一台放置在离物体约600mm处的640×480 分辨率的黑白CCD摄像机（JAI CV-M50）来捕集图像。Figures 3(a)–(c) show images of fringes projected on to the glass blocks and shifted by 2π/3 radians in three stages. 图3（a）－（c）示出了投射到玻璃块上，并在三个阶段中被偏移2 π/3弧度的条文的图像。The phase map obtained after applying Eq. (3) to these images is shown in Fig. 3(d). 在将式（3）用于这些图像后得到的相位图始于图3（d）。Phase value 0 corresponds to gray value 0 in the phase map image, whereas phase value 2π corresponds to gray value 255. 相位值0对应于相位图图像中的灰度值0，而相位值2π对应于灰度值255. Other phase values are linearly related to the pixel intensity from 0 to 255. 其他相位值与从0到255的像素强度成线性关系。
The projection angles of the non-collimated light for a given height on the surface of the specimen block have to be determined before calculation of tilt can be performed. 对于在样本块表面上的某一给定高度来说，非准直光的投影角必须先确定，才能进行倾角的计算。To determine the relationship between θ and block distance L along a straight line from the origin O, a single glass block of dimensions 13.5 mm×152.