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。
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。
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。
This paper presents a developed approach for computing the offset of free-form surface using an adaptive sampling algorithm.
应用基于形状的自适应采样算法，给出了一种自由曲面的偏置算法。
It is designed with heavy workload and machined with high difficulty as its profile is a kind of free-form surface in space.
由于叶片的型面是一种空间自由曲面，因此设计工作量大、加工难度高。
The 3-d measurement system of free-form surface is made up with single CCD video cameral by employing line-structured laser.
采用线结构光和单ccd摄像机构成自由曲面三维测量系统。
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。
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。
On the base of the fairing of free-form surface reconstruction from 3d data points, this paper probes one method based on shape constraints.
针对三维数据点重构自由曲面的光顺问题，探讨了一种基于形状约束的曲面重构技术。
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。
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。
Meanwhile, it is required that the free-form surface modeling must be able to change the freedom of local and meet all kinds of design requirements.
同时，要求自由曲面的造型必需能够局部地自由加以变更，使其符合各式设计需求。
Through measuring cylindrical section and surface of gauge block, this system is viable to measure free-form surface and high-reflective metallic sur…
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。
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。
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。
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。
The new method of re-construction of free-form surface which takes full advantage of conventional design and reverse-engineering is introduced in this paper.
介绍了将逆向工程与正向设计结合实现自由曲面模型重构的新方法。
At present, how to constitute the last 3d free-form surface model rapidly is one of the important subjects about the last design and the sole mould manufacture.
目前，如何快速建立鞋楦3d自由曲面模型是鞋楦设计制作及鞋底模具制作的重要课题之一。
The calculative precision of the cutting breadth has a significant effect on the machining precision and the machining efficiency for free-form surface machining.
在自由曲面加工中，行距的计算精度直接影响着曲面的加工精度和加工效率。
Polishing tool paths were constructed to evenly cover a 3-d free-form surface defined within a 2-d convex domain to reduce surface roughness and improve efficiency.
为了减小抛光加工的表面粗糙度和提高效率，构建抛光工具路径并均匀覆盖于三维曲面上，曲面的定义域为任意二维凸区域。
A novel method is proposed to calculate the minimum distance from tool to free-form surface, to solve tool interference problem in 5-axis nc sculptured surface machining.
提出了一种求解曲面到刀具极值距离的方法，以解决曲面5轴数控加工中刀具与曲面的干涉问题。
Based on the models and the free-form surface formula, the moving envelope surface of ball-end mill is obtained by means of matrix calculating, the topography is modeled and simulated.
基于自由曲面方程，由矩阵运算得出刃线运动包络面，对球头铣刀加工的表面形貌进行了建模和仿真。
According to the feature of contacting measurement, the dissertation first puts forward the twice-sampling planning method for free-form surface in order to improve measuring efficiency.
根据接触测量的特点，为提高测量效率，本文提出了一种两次采样的曲面数字化规划方法。
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。
Basic theory and procedure of NC machining for free-form surface based on reverse engineering were introduced. Digital measure and CAD modeling as well as tool path generating were analyzed.
介绍了以反求工程为技术支撑的自由曲面数控加工的基本原理和全过程，并对其中的数字化扫描、CAD建模及刀具轨迹生成等关键技术作了进一步的分析。
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。
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。
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