查询词典 collimation

The collimation and focus systems discussed in this paper are the important components of the synchronal radiation equipment which can change the direction of X ray and focus it.

同步辐射是生物大分子研究中所使用的重要方法，本文讨论的准直镜和聚焦镜系统是生物大分子光束线中的重要装置，其作用是改变X射线的方向并使其聚焦。

The author has accomplished the following tasks:1. presented the general scheme of the profile measuring system;2. presented four methods of laser collimation, realized 3 of them with the software of ZEMAX, and meted the requirement of the system design;3. realized the laser beam expanding from point-laser to line-laser wide enough to cover the flange trackside;4. after image grabbing and processing, picked up the profile of the train wheel.

作者独立完成的工作包括： 1、提出了曲面测量的光学系统的整体方案； 2、提出了四种激光扩束的方案，用光学设计软件ZEMAX完成了其中三种的设计；经过像差分析和追迹，达到了准直扩束的要求； 3、点光源到线光源的单方向扩展，达到了覆盖轮缘踏面的要求； 4、通过实验采集图像和图像处理，提取出被测轮缘的轮廓。

All images were acquired with 7 10-mm collimation and a pitch of 1.2 1.5. One patient underwent nonenhanced CT because she was allergic to the contrast material; CT images clearly demonstrated the presence of strangulating bowel loops as diffuse mesenteric fluid and haziness.

图像厚7-10mm，旋距1.2-1.5.1例病人由于对造影剂过敏而进行非强化CT，CT图像清晰的显示肠管绞窄，弥漫性的肠系膜积液并分界不清。

Methods CTVE of auditory ossicular chain was performed with 1.0 mm collimation at pitch 1.0,bone algorithm,9.6 cm FOV,and 0.1 mm reconstruction interval in 40 patients with middle ear diseases,30 of them were proven by operation.

方法使用准直1.0mm、螺距1.0扫描，骨算法、视野9.6cm、间隔0.1mm重建对40例临床怀疑中耳病变（30例手术）的患者进行CTVE成像，并与轴位HRCT、MPR图像及手术结果对照分析。

For achieving large-scale space photoelectric tracking, the axis error of the new three-axis gimbal with collimation axis eccentricity was studied.

摘要本文分析了实现大范围空间光电跟踪的视轴偏心三轴跟踪机架的轴系误差。

According to the structural feature of modern tilting levels, the method of erecting the collimation axis to the standing axis and the principle of the setting out of slope with the tilting standing axis are expounded.

根据现代微倾水准仪的视准轴可以调整的构造特点，阐述了使水准仪视准轴垂直于竖轴的方法，以及倾斜竖轴法放样斜坡面的原理；讨论了其误差来源、大小；对照几个行业的设计、施工及验收规范和测量规范，给出了简便可行的操作方法与有效检验手段。

The coherent output of a LDA has been achieved by a simple EC consisted of a commercial LDA, a fast axis collimation lens and an external mirror.

我们用一个普通的商用LDA、一个快轴准直透镜和一个外腔镜构成的简单外腔实现了LDA的外腔锁相运行。

The paper, concerning the characteristic of engineering and geology, studied the creation of the Xiaolangdi multipurpose project safety-monitoring system. A zoned monitoring system under the control of unique baseline has been proposed. Manu possible monitoring methods, especially, the accuracy of collimation axis、 intersection、 olar coordinate, have been studied in detail to provide the theory foundation of the application of intelligent otal-station instrument automatic monitoring system on Xiaolangdi project.The application of intelligent otal-station instrument, TCA2003, and digital water level,DiNil2, on the dam safety monitoring as well as data automatic recording have been researched extensively. All this research provide the valuable experience to in-situ data collection, automatic transferring, data analysis and treatment and management.

本文结合小浪底工程特点和地质情况，研究了小浪底水利枢纽安全监控基准体系的构建，提出了统一基准控制下的分区测控系统思路；详细研究了可用于小浪底大坝外部变形监测的多种方法，重点分析了极坐标法、交会法和视准线法的精度，为智能型全站仪自动监测系统在小浪底的应用提供了理论依据；重点研究了自动全站仪TCA2003和数字水准仪DiNi12在大坝安全监测中的应用；同时研究了测量信息自动化采集处理系统，为外业监测信息的采集、自动传输和及时处理、管理创造了有利条件。

Using uniaxial amplification system composed of a high-resolution CCD,a fast axis collimation lens and cylindrical lenses,via laser emitters imaging and facula intensity-based centroid algorithm,the "smile" of diode laser array is measured.

采用高分辨率CCD、快轴准直透镜及柱面透镜组成的单轴放大系统对激光线阵发光单元成像及基于光斑强度求质心的算法实现了二极管激光线阵&smile&的测量。

Adopt project practical quaternion algorithm of strapdown navigation system, Analyze systematic error source, emulation prove the output change of SINS in there is device error of inertia and the initial condition of collimation error.

采用了工程上实用的四元数捷联导航系统的算法，分析了系统误差源，仿真验证了捷联惯导系统在有惯性器件误差及初始对准误差情况下的输出变化。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。