查询词典 laser

From energy balance equation, using micro-piece analytical method, heat balance equation for high power fast axial flow CO〓 laser tube is established with the boundary conditions of actual fast axial CO〓 laser, the analyzed solution of the temperature distribution in the laser tube is obtained.

并应用热传导的物理边界条件，求出了热能平衡方程的解析解，得到了实际器件放电管横截面内的气体温度分布公式及温度分布曲线，并求得了激光功率变化对热致负透镜焦距的影响关系式。

A high-powered infrared autocollimator is adopted to ensure 2 of spatial resolution, a 15GHz oscilloscope is used to capture the laser pulse as narrow as 100ps, and an accurate laser power meter with large dynamic range is used to obtain accurate energy measurement of the laser pulse.

通过引入红外自准直仪使系统的角分辨率达到了2，借助示波器捕获窄达100ps的激光脉冲，高精度、大动态范围的激光能量计可精确测量出激光的能量。

The apparatus regards the laser beam, emanating from the laser device, which can emit the perpendicular laser to the earth, as the measuring norm. The facula on the autodyne, which clings to the guide way during the measuring, is sampled to computer with a CCD camera and an image acquisition card. By computer image proce~sing, the measuring apparatus can identify the displacement of the facula center .By this way it determines the verticality error of the guide way at the measuring position, which can be recorded automatically at the same time.

该测量仪以激光自动安平垂准仪发出的激光为基准，紧贴导轨运行的接收装置上的光斑经CCD相机和图像采集卡采集到计算机后，通过计算机图像处理识别出光斑中心的位移量来确定电梯导轨在测量位置的垂直度偏差，同时自动记录测量所在位置。

To take the laser energy fluctuation into consideration, a beam splitter and a laser receiver are added to the traditional design for monitoring the change of laser energy.

这样设计的目的是为了得到遮蔽物释放后无法获得没有遮蔽物时测量处接收机所接收的每个激光脉冲的能量，从而消除脉冲能量起伏对测量精度的影响。

For the laser coordinate measuring machine, the single CCD and the structure light are used to match the 3D object surface data. A new ladder-shaped calibration block is designed and two images are taken: one is structured stripe image and the other is laser plane image by this block. The laser plane and camera calibration can be accomplished by both images.

由于关节式坐标测量机的激光测量头，使用单摄像机和线结构光来匹配被测物体表面的三维数据，本文设计了一种新型的阶梯形标定块，通过标定块图像和激光条纹图像完成了摄像机的内外参数标定和激光平面参数标定。

Firstly, some fundamental knowledge, such as the describing of laser field, the Kind of electron-atom scattering in a laser field, and so on, are introduced. Then a compution method which is called the Second-order Born approximation and is used to calculate the cross section of electron-atom scattering in a laser field, is provided.

本文首先介绍了激光场的描述、激光场中电子—原子散射的分类等相关理论，接着详细描述了一种计算激光场中电子—原子散射截面的方法——二阶玻恩近似理论。

Based on the Laser Doppler technology, Information technology, Image Recognition and Process tenology, the laser image characteritics of ultra-fine and non-spherical particles are studied. The laser image recognition method based on neural network theory are obtained. The associated hardware and computer software for analysis of the shape characteristics are developed. The shape characteristics of typical particles such as fire smoke particle and carborundum are studied by using such method. The results of this project are useful to develop the new reliable, accurate and rapid experimental diagnoses technology.

本项目综合应用激光多普勒技术、信息技术和计算机图像识别处理技术，研究了非球形超细微粒的激光影像形成规律，建立了基于神经网络理论的粒子形状特性测量方法并发展了相应的硬件系统及其计算分析软件，并利用该系统研究了火灾烟雾颗粒、金刚砂等典型非球形超细微粒的形状特性，已初步形成了可靠、准确、快捷的新型实验诊断方法，为进一步发展实用的非接触诊断技术提供条件。

So DOE is used in transmitting and receiving optics of laser radar,which can not only collimate laser beam,but also can transform and shape the laser wavefront.

将衍射光学元件用于激光雷达的光学系统上，不仅可以实现对激光光束的准直，同时还可以对光波波前进行变换和整形。

Became the first domestic famous brands of domestic companies,"Han's Laser,""Laser Chutian" and the concessionaire companies selling laser dealers.

国内第一家成为著名品牌公司"大族激光""楚天激光"等激光公司的特许销经销商。

The CopperHead Laser Screed works by using the same basic laser control system as the "big" laser screeds.

熨平的铜斑蛇激光工程作为"大"激光找平相同的基本激光控制系统。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。