在4坐标数控机床上实现了几何误差的软件补偿。
The software compensation of geometric error is realized in 4-coordinate NC machine tool.
本文给出了数控车床的几何误差模型和一台数控车床的实测数据。
A geometric error model for CNC lathe and the measured data are presented in this paper.
实验数据表明，数控车床的几何误差值可以大大超过人们估计的值；
The experiment data indicate that the value of a CNC lathe's geometric errors could be far larger than the value expected.
提出了一种新的适用于机床几何误差补偿的测量装置———二维球杆仪。
A new device called 2-dimensional ball-bar was proposed for the software compensation in the workspace.
基于三轴数控机床的空间误差模型，使用三维步距规识别数控机床空间几何误差。
Based on error model, the three dimension-stop gauge was used to identify the space errors of CNC machine tools.
本文介绍了合成孔径旁视雷达图象几何误差的产生原因与分析了楔形透镜的校正原理。
This paper reports the causes of image geometry error for synthetic aperture side-locking radar (SALE) and analyses of correcting principle with wedge-len.
本设计从几何误差、测量误差和计算误差几个方面对导航精度进行了误差最小化设计。
In error minimum design of the navigation precision, geometrical error, measuring error and calculating error are considered well.
最后对三维工作空间进行了几何误差分析，并说明了该方法对工程实际问题的应用价值。
Finally the geometrical error analysis of the workspace was conducted, and the engineering value of the method was presented.
分析了坐标测量机几何误差的几种常用模型，提出了基于神经网络的单项几何误差模型。
Several coordinate measuring machine geometry error models of several kinds in common use are analyzed in this paper.
电火花摇动加工具有诸多优点，但是电极的平面摇动会使加工结果出现一定的几何误差。
Sway EDM have many advantage, but the electrode's sway in planar could lead the geometry tolerance.
几何误差对超精密车床加工精度具有较大的影响，主轴偏角误差就是其中较为主要的一种。
Geometric errors are the most significant sources which affect the accuracy of ultra precision manufacturing tremendously. The spindle deviation is one of the main kind of them.
通过这些数学表达式可以定量的计算出机床主轴由于回转运动误差产生的加工几何误差数值。
Through the mathematics equations, numerical value of machining geometrical error duo to machine spindle rotary error are calculated.
利用建立的几何误差模型，可以准确计算出机床的几何误差，为机床误差补偿提供了理论依据。
Using this error model, the geometrical error of machine-tool can be calculated accurately, which offers a theory foundation for analyzing the error of it.
由于坐标测量机几何误差变化规律复杂，采用一般的BP神经网络模型算法，速度慢且难以收敛。
Owing to the complicated variable rule of CMMs geometry error, it's difficult to convergence for using common BP neural network model arithmetic with a slow velocity.
在影响超精密加工工件面形精度的诸多因素中，机床的空间几何误差与运动误差往往占主要作用。
Among the factors that affect the workpiece form accuracy, space geometry errors and kinematic errors usually play the main part.
然后重点分析了本文所使用的立式锥束CT系统的几何特点，对系统的几何误差参数进行了讨论。
Then this paper analyzed the geometric characteristics of CBCT system with a verticalstructure, and discussed the geometric parameters of a system with misaligned geometry.
作者基于分析和建立加工曲面的型面几何偏差与加工刀位规划参数的关系，提出几何误差的控制方法。
This paper presents the methods to control geometrical errors based on the establishing of the link between geometrical errors and the parameters of tool path planning.
该方法通过测量XY,YZ,XZ平面内特定圆周上各点的空间误差，可获得所有21项几何误差。
All the 21 geometric errors can be obtained by the means of measuring volumetric errors on some specific circles in XY, YZ, XZ planes.
重建CT图像的前后方向的几何误差是随着扫描层厚增加而增加，主要是由于CT扫描的部分容积效应影响。
The geometric error of axial image reconstruction increases with the increase of CT scan slice thickness, due to CT partial volume effect.
中低档数控机床在我国应用极其广泛，几何误差是影响该类机床的主要因素，约占机床总体误差的70 %左右。
Low and middle lever CNC machines have been widely used in our country, geometric error nearly takes account of 70% in total error.
以多体系统理论(MBS)为基础，建立了包含测头误差、机床几何误差、丝杠和主轴热误差的综合误差补偿模型。
Based on the theory of MBS, presenting the comprehensive errors model consisting of offset probe errors, geometric errors, screw thermal error and spindle error.
通过任意两坐标系间的向后微分关系，利用运动学方程以及并联机构的环路特性，建立了微机器人的广义几何误差模型。
The method represents the effects of all possible error sources on robotic mechanisms as generalized geometric errors in a unified manner.
数控加工后置处理不仅是CAD/CAM技术和数控编程系统的重要组成部分，而且也是实现数控机床几何误差软件补偿的重要途径。
Post-processing of CNC machine tools is the important component of the CAD/CAM technology and NC programming system. Also, it is important way of compensating geometric error by software.
将变动几何约束网络应用于夹具误差预测。
The variation geometric constraint net is applied into fixture error forecasting.
本文用几何光学描述了离轴探测调焦误差信号与系统参数的关系，并与实验结果进行了比较。
Characteristics of the defocusing error signals are expressed in the terms of an off-axial detection system by geometric optics. The results are compared with experiment.
本文用几何光学描述了离轴探测调焦误差信号与系统参数的关系，并与实验结果进行了比较。
Characteristics of the defocusing error signals are expressed in the terms of an off-axial detection system by geometric optics. The results are compared with experiment.
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