This paper presents a new discrete model of NC path generation for free form surface machining.
提出一个面向曲面nc加工刀位计算的曲面离散基本单元模型及其误差控制方法。
Free form surface is most important feature to shape of product such as plane, automobile, motorcycle.
自由曲面是工业产品，尤其是飞机、汽车、摩托车等行业产品外形的重要特征。
For measuring free form surface, a line structured light based 3d vision probe which works on CMM is proposed.
介绍了一种工作于三坐标测量机(CMM)上的线结构光三维视觉测头，实现自由曲面的快速检测。
The small measuring field of sensor unit is the key problem in the free form surface measurement of large scale objects.
本文针对大型物体自由曲面测量中，传感器单元测量区域小等问题，提出了一种基于粘性目标实现空间图像拼接的方法。
Marine propeller is a type of free form surface part. Its design and manufacture precision decide ship's thrust efficiency directly.
船用螺旋桨是一类典型的自由曲面零件，它的设计和制造精度直接决定了其推进效率。
Physics based modeling is one of the keen free form surface modeling method at present, and it should be a practical surface modeling method in the future.
基于物理的造型方法是当今曲面造型研究的热点之一，并可望成为今后曲面造型的实用工具。
On the basis of the differential geometry, the geometrical theory of machining free form surface by cylindrical cutter in 5-axis NC machine tool is investigated.
从微分几何学的角度，探讨了在五坐标数控机床上采用圆柱形刀具线接触加工自由曲面的几何学原理，分析了刀具面与被加工曲面二阶密切的条件。
On the basis of a thoroughgoing study of the above methods, a non contact method for measuring free form surface automatically is given, some key techniques are also described.
在深入研究上述方法的基础上，提出了一种自由曲面的非接触自动测量方法，介绍了测量系统的构成、曲面边缘的提取、自动扫描方式的规划以及测头跟踪方式等设计要点。
Traditionally, contact measurement or simple non contact measurement based on coordinate measuring machine are used for the measurement of free form surface with high accuracy.
精确测量空间自由曲面的传统方法是采用三坐标测量机的接触测量或简单的非接触测量，这些测量方法存在工作效率低、自动化程度低等缺点。
The aim of this dissertation is to perform complex free form surface modeling by choosing appropriate methods, then it can satisfy the requirements of numerical control machining.
本文的出发点是通过选用适合方法对复杂自由曲面进行造型，满足曲面数控加工的需要。
On the basis of a thoroughgoing study of the above methods, a non contact method for measuring free form surface automatically is given, and some key techniques are also described.
在深入研究上述方法的基础上，提出了一种自由曲面的非接触自动测量方法，介绍了测量系统的构成、曲面边缘的提取、自动扫描方式的规划以及测头跟踪方式等设计要点。
The shape of streamlined train head is made of the 3-dimensional space free form surface, whose shape outline curve USES NURBS curve and complex shape surface USES 3-d NURBS surface.
基于流线型的列车头部外形由三维空间自由曲面构成，提出采用NURBS曲线设计外形型线和用三维nurbs曲面描述复杂三维曲面的车头外形设计方法。
In our example, on the editor's free-form surface (FFS) you will create nodes for a Web page named index.jsp, result.jsp and error.jsp.
在我们的示例中，您将可以在编辑器的自由格式表面(FFS)中为名为index . jsp、result . jsp和error . jsp的web页面创建节点，而这些页面现在并不存在。
In the digital measurement for free-form surface, image mosaics are needed to achieve the whole measurement for the small measuring field of sensor unit.
自由曲面数字化测量中，由于传感器单元测量区域小，所以实现整体测量需要进行多次的图像拼接。
Through measuring cylindrical section and surface of gauge block, this system is viable to measure free-form surface and high-reflective metallic surface.
对圆柱正截面和量块表面的测量试验验证了该测量系统对自由曲面和金属强反射表面测量的可行性。
Based on the existing problems in free-form surface reconstruction, surface digitizing and parametric optimization of random points are probed.
针对自由曲面重构建模中存在的问题，对曲面数字化及离散点参数优化技术进行了研究。
The visualization display with computer for huge data calculated with surface quality analysis is the key technology for us to realize the computer evaluation of the free-form surface design.
曲面品质分析结果的可视化显示是实现对自由曲面设计质量进行评估的关键。
First, the principle of perspective transformation and its application in the texture mapping of free-form surface are presented.
首先介绍透视变换和透视纹理映射原理，并简要分析其在自由曲面纹理映射中的应用。
The step error and line error of free-form surface of projecting NC machining were analyzed.
分析了自由曲面三坐标投影法数控加工的步长误差和行距误差。
In the field of measurement for free-form surface, it is a hot topic how to obtain the shape information as more as possible by the certain sample points.
如何用最少的测量采样点提取最多的曲面信息是曲面检测领域的热点研究问题。
Parallel Machine Tool; CAD Variation Geometry; Euler Angle; Kinematics; Statics; Free-form Surface; Forward position.
并联机床；CAD变量几何；欧拉角；运动学；静力学；自由曲面；位置正解。
On the basis of above research, the measuring error compensation method for free-form surface is proposed.
在此基础上，进一步提出了自由曲面测量误差的补偿方法。
A stereovision inspection system for measuring free-form surface is introduced which consists of coordinate measuring machines (CMM) and a laser probe.
介绍了利用安装于三坐标测量机CMM上的激光测头测量自由曲面的立体视觉检测系统。
It is that the measurement point can be predicted via the arc extrapolation method and can be adaptive to sense the change of the free-form surface.
从测量速度和精度两方面考虑，提出采用圆弧切线外插算法控制激光束跟踪扫描，实现曲面的自适应跟踪测量。
Through an experiment for free-form surface measurement, the approach is proven to be simple for parameter computation and its relative error for space length measurement is better than 0.56%.
通过对一自由曲面分块测量及数据拼接实验表明，这种方法参数求解简单，空间距离拼接相对误差优于0.56%。
It can be predicted that in the near future, the intelligent measuring system with multi-sensors integration technology will be the most promising trend for free-form surface measurement.
其中多传感器集成的智能化测量系统是未来自由曲面测量系统的主要发展趋势。
It can be predicted that in the near future, the intelligent measuring system with multi-sensors integration technology will be the most promising trend for free-form surface measurement.
其中多传感器集成的智能化测量系统是未来自由曲面测量系统的主要发展趋势。
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