本文研究直接在三坐标测量机上检测凸轮并评定误差的方法和理论。
The measurement and error evaluation of cams in 3 dimensional coordinate measuring machine is researched in this paper.
研究了直接在CNC齿轮测量中心上检测凸轮并评定误差的方法和理论。
The measurement and error evaluation of cams in CNC measuring center is researched in this paper.
提出了用回转中心误差定义的车削类主轴回转运动精度的评定误差和用回转轴心误差定义的镗削类主轴回转运动精度的评定误差的概念。
The concept of evaluation error of the mainshaft rotary precision for turning machines defined with rotary center error and that for boring machines defined with rotary axle center are presented.
针对表面粗糙度和形位误差对圆柱体直径评定结果的影响,在进行圆柱体直径尺寸评定时,需要对表面粗糙度进行滤波处理。
As roughness and form & position errors have an effect on evaluation result of cylinder diameters, it is necessary that roughness is filtered for evaluating cylinder diameters size.
本文介绍了直线度误差最小评定的0.618法和凸多边形法,并给出了这两种方法的高级语言程序。
The 0.618 method and the convex polygon method for minimum condition evaluation of straightness error are introduced, and their high-level language programs are given in this paper.
本文利用卡尔曼滤波方法精确地估计圆度误差评定中一阶模型参数。
In this paper, the Kalman filter approach is used to accurately estimate the parameters of first-order model for the evaluation of roundness errors.
提出了主应力的偏角误差概念及其计算方法,使主应力方向的精度评定更加真实客观。
Precision estimation of principal direction is more objective by using principal stress deflection error proposed in this paper.
该原理可扩展到其他平行度误差的评定。
This principle can be extended to other evaluation of parallelism errors.
对具有复杂、不规则轮廓的零件进行精密测量和误差评定,是当前几何量计量领域中的一个重要课题。
In the field of geometrical metrology, one of the important projects is the accurate measurement and error evaluation of parts profile with complicated and irregular surface.
详细分析了用最小二乘法和最小包容区域法评定形状误差测量结果时的不确定度估计问题。
The problems of uncertainty estimation are analyzed in detail when measurement results of form errors are evaluated with the methods of least-square and minimum zone.
其基本思想是:先找到有效数据段,利用误差评定区域原则找到杂散点,最后剔除掉杂散点,同时采用回朔法恢复有效数据点。
The basic idea of it is finding a available data segment first, then using principle of error assess area to find desultory point weeding them and comeback the available data by retrospect at last.
本文建立了用最小二乘法评定复杂曲面面轮廓度误差的通用数学模型。
In this paper, a general mathematic model of profile error of complex surfaces is proposed with the least squares evaluation.
实验表明,用该方法对齿形链链板的几何尺寸测量和圆度误差评定是可行的。
Experiment shows that measurements on geometrical size and evaluation on roundness error of the tooth shape chain board by this measurement method are feasible.
自由曲线的轮廓常用离散点来表示,而不是已知的数学方程,评定其轮廓度误差非常困难。
The profile of the random curve is expressed not by mathematical equation but by discrete points, which makes it very difficult to evaluate the profile error.
在测量尺寸时,依据图像分割所提取的轮廓,使用自编程序利用最小区域法对圆度误差进行评定,并计算、测量链板的孔径和节距。
Roundness error is evaluated by minimum region law. The diameter of the holes and the distance between the axes of two holes are calculated and measured by program.
本文首先按最小条件建立了评定空间直线度误差的非线性数学模型。
Nonlinear mathematical model for spatial straightness error evaluation is firstly established in this paper based on the minimum zone condition.
提出用逐次逼近思想来评定复杂曲线的轮廓度误差的方法。
An approaching method was proposed to evaluate the profile error of curve.
用点集拓扑学理论,建立了形位误差评定的统一数学模型。
The unified mathematical model for evaluating geometrical errors is created with the theory of point set topology.
提出球度误差评定的几何逼近原理,并对算法进行了建模。
The geometrical approximation theory of evaluating geometrical errors is put forward and modeled.
最小区域法是符合最小条件的一种直线度误差评定方法,但较难实现。
The minimum zone method meets the minimum condition for evaluating the straightness, however it is difficult to accomplish computerization.
介绍按最小外接圆法、最大内接圆法评定圆度误差的一种快速、简便、易于微机实现的数据处理方法。
The data processing method for evaluation the circularity error with minimum circumscribed circle and maximum incircle was introduced. The method is quick and convenient to realize on computer.
运用EB样条理论建立了凸轮轮廓面的误差评定模型。
The coordinate measuring machine is used for inspection whereby the EB spline theory is applied to develop an error evaluation model.
研究了光学自由曲面面形误差的评定算法。
An algorithm for evaluating form errors of the optical freeform surfaces is presented in this paper.
利用曲面的微分几何特性,基于禁忌搜索算法,提出一种新的船体外板曲面形状误差评定方法。
Based on the characteristics of differential geometry and the tabu search algorithm, a new method for the profile error of ship hull plate processing surface is presented.
本文分析了热电偶检定系统的误差来源,并对误差不确定度进行评定。
This article has analyzed the error source of the thermocouple calibration system, and evaluated the error uncertainty.
建立了采样数据为直角坐标值、坐标原点可以任意选取、各离散采样点之间也不要求为等角度间隔情况下,圆柱度误差评定的最小二乘数学模型。
This paper models the least square algorithm of the cylindricity error in the rectangular coordinates, whose center may be set on random and all discrete data can be sampled optionally.
研究了几种直线度误差评定方法,其中最小区域法符合最小条件,应作为直线度误差评定结果的仲裁依据。
A few of methods of evaluating straightness error are researched. Minimum zone method tally with minimum condition, so it is ruling basis of evaluating straightness error.
本文阐述了轴线直线度误差最小二乘评定法与最小条件评定法的数学模型。
The mathematical models of axis straightness errors by Least Square evaluation and minimum condition are discussed in this paper.
本文阐述了轴线直线度误差最小二乘评定法与最小条件评定法的数学模型。
The mathematical models of axis straightness errors by Least Square evaluation and minimum condition are discussed in this paper.
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