查询词典 collimation line

B The method of multiple-point monitoring and error correction is put forward to establish a highly stable collimation datum line.

提出利用多点监测，综合修正的方法建立高稳定准直基准线。

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。

Based on the thorough study of sources and characteristics of the three errors in laser collimation technology, an error correction method by integrating multi-point detection, multi-variant polynomial step-by-step regression analysis and adaptive noise-elimination is proposed. The influences of beam drift, bending and whipping are taken into consideration to enhance the stability of plumb datum line.

在深入分析激光准直技术中三项主要误差因素来源及其特性的基础上，提出了利用多点监测、多元多项式逐步回归分析法与自适应除噪技术相结合的综合修正方案，建立铅垂基准线的修正模型，综合考虑了激光漂移、光线弯曲以及随机抖动等因素的影响，从而有效提高了铅垂基准线的稳定度。

A basic formula for deciding weight by the maximum quasi probable methodand the collimation line method for great dam observation is derived in this artical.

本文用极大似然法和大坝观测的视准线法推导了基本的定权公式。

An automatic collimation method based on CCD sensor was presented in this article.Using the vernier calipers scale line,the practical collimation line was simulated.

提出了一种基于CCD传感器的精密图像式瞄准方法，利用错位放大原理，用多个基准点同时参与瞄准，采用游标卡尺刻度线来模拟实际应用时的瞄准线。

The deformation monitoring items of the dam for Shanxi Hydropower Station include the elevation control network close to the dam area, plane control network of triangulation and trilateral, dam collimation line and settlement monitoring.

珊溪水电站大坝变形监测项目包括近坝区高程控制网和平面边角控制网、坝视准线及沉陷观测。

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。