查询词典 reflection grating

Further analysis shows that this is caused by the long-period fiber gratings phase matching condition,which is different from that of Bragg grating.

进一步的分析指出，这是由长周期光纤光栅不同于Bragg光纤光栅的相位匹配条件决定的。

In the phase measurement technology based on grating projection, there are some difficulties such as: the method of projection, phase unwrapping algorithm and 3-D coordinates calibration.

在光栅投射相位测量技术中存在着几个难点，例如：投影方式、相位去包裹算法和3－D坐标标定。

In the course of the research of modulation measurement based on phase shift techniques, this paper gives the programs on error margin analysis of the phase shift and the function analysis of grating, and analyzes facts that phase shift error has some effects on obtaining modulation value.

在研究基于相移技术的调制度测量原理中，编写了相移误差分析及光栅性能分析的程序，并分析了相移误差对获取调制度信息的影响。

When the axis turns with the most grating, photoelectric cell's signal is sin wave.

当轴转用最光栅、光电电池的仲波信号。

The phase grating is realized with photolithographic IC technique. Three different methods to realize phase gratings are discussed.

用光刻法实现了这一位相光栅，并比较了不同位相光栅制作法的优缺点。

The phase grating is realized with photolithographic IC technique.

用光刻法实现了这一位相光栅，并比较了不同位相光栅制作法的优缺点。

Starting from these basic problems, we described the photosensitivity of fiber and writing technology of fiber grating.

论文首先从这些基础性的问题入手，描述了光纤的光敏性和光纤光栅的写入技术，并对光纤光栅的波长敏感特性进行了讨论，利用相位-应变-温度模型分析了光纤Bragg光栅的应变、温度、压力敏感特性。

The results of calculation and measurements have been demonstrated by the experimental researches on photosensitivity and grating performance of chalcogenide fiber.

在详细了解和分析硫系玻璃材料性质的基础上，对硫系光纤的基本特性、特殊工艺、光纤的基本实验方法进行了理论和实验研究。

The proper optical fiber,plane directional optical grating and concave reflector were chosen and integrated together based on the theoretical computation for the optical layout of the spectrometer.

设计一种微型可见光CCD摄像光谱仪的光学结构，通过理论计算，选用合适的光纤、平面定向光栅和凹面反射镜，并将它们合理组合，采用聚焦反射和分光的方法，将待测光进行色散，直接投射到CCD接收器件的表面。

Based on the three- dimensional coupled wave theory, the theory of diffraction of local volume holographic grating s recorded with arbitrary polarization plane waves is studied.

基于三维耦合波理论，研究了两束有限宽度的任意偏振平面波干涉产生的局域体全息光栅的衍射问题。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。