球面度

为了满足包括太阳直射和天空散射在内的2π球面度立体角范围的入射光线的测量需求，要求太阳紫外光谱辐射测量装置的入射光学系统必须具备较好的余弦响应特性。

The ideal cosine entrance system is required for measuring the total radiation of the solar including the direct radiation and the diffuse radiation over a solid angle of 2 π steradian on the surface of the Earth .

一种高次光学非球面度的计算方法

A method for calculating asphericity of high-order optical aspheric surface

二次曲面非球面度计算方法及公式

Calculation Method and Formulas of Conicoid Aspherical Degree

简单介绍了抛光盘变形控制结构和面形检测机构，对深非球面度面形变形进行了精度分析，探讨了主动抛光盘的动态响应和校正，并对抛光盘的改造提出了一些建议。

The deformation control construction and measurement method of the lap are introduced . The dynamic response and emendation problem are explored , and the lap improvement is proposed .

测量结果表明，该系统单点测量精度优于7μm，球面度测量精度优于22μm。

The measuring result shows that the measurement accuracy of single point y is batter than 7 μ m and the measurement accuracy of spherical surface degree is batter than 22 μ m.

在其他工艺条件保持不变的情况下，推导出了研抛盘的径厚比、弹性模量与工件表面的法向非球面度、法向矢高之间的解析关系；

When other technology conditions keep constant , the mathematical relation between the ratio of radius to thickness , Young 's modulus of the disk and normal asphericity , normal arc height of workpiece surface is given .

针对现有光学非球面度计算方法不统一的问题，在分析常用方法特点的基础上，对于高次光学非球面度的计算提出最小最大残差法。

In view of methods for calculating asphericity of optical aspheric surface are nonuniform , a least maximum residual error method for calculating asphericity of high-order optical aspheric surface is proposed on the basis of analyzing common calculating methods .

研究球面2自由度2R串联机器人的可达工作空间，并对之进行分类。

The reachable workspace of 2-DOF 2R serial manipulator is studied and classified .

球面二自由度5R并联机器人的运动学分析

On the Kinematics Analysis of a 2-DOF Spherical 5R Parallel Manipulator

球面二自由度冗余驱动并联机器人可达工作空间的分析

Research on Workspace of a Spherical 2-DOF Parallel Manipulator with Actuation Redundancy

一种用于腕关节的球面三自由度并联解耦机构位置分析

A Kinetic Analysis of 3-DOF Decoupled Spherical Parallel Mechanism Used for the Wrist Joint

试验数据表明，所加工球面的圆度提高了40%，尺寸精度提高了50%以上，显著提高了普通设备的加工精度。

The experiment data shows that the machining precision of traditional equipment is improved obviously .

多个溢流阀串联使用的可行性分析球面3自由度串联机器人工作空间的研究

The feasibility study of series connection of relief valves on the workspace of spherical 3-of serial manipulators

球面3自由度串联机器人工作空间的研究机械手工作空间边界曲面的解析表达式

On the workspace of spherical 3-of serial manipulators a study on the analytic expressions of the boundary surfaces of manipulator workspace

本文对一种基于球面三自由度并联机构的拟人机械手臂的肩关节进行了分析与设计。

The thesis focuses on analysis and design of the anthropopathic mechanical arms ' shoulder joint based on the spherical 3-DOF parallel manipulator .

给出设计思想，表明球面三自由度并联机构适合作为拟人机械手臂的肩关节。

Design thought is given , which indicates the spherical 3-DOF parallel manipulator is fit to become the anthropopathic mechanical arms ' shoulder joint .

介绍了使用激光测距传感器配合球面二自由度并联机构测量大锻件尺寸的方法。

This paper introduces a new online method to measure the dimension of large forgings , which uses the pulsed laser ranging sensor with a2-DOF parallel spherical mechanism .

研究结果表明：只要对平面、球面机构自由度的计算公式稍加变化，推导出空间机构求自由度的新公式。

The result of research indicate that the calculating formula of degree of freedom of space mechanism will be set up if the calculating formula of degree of freedom of plane and spherical surface mechanism are changed a little .

光学非球面元件非球面度计算方法

The method of calculation to asphericity of optical aspheric surface component

一种双列调心球面球轴承刚度的计算及应用

Stiffness Calculation and Application of Self - Aligning Ball Bearing

根据变分原理和虚功原理推出了两个球面接触的刚度方程式，并补充了接触条件，得到了四种状态下的定解条件。

Two rigidity equations of both spherical surfaces are derived from variation principle and virtual work principle . Furthermore , the contact conditions under four contact states are added in order to solve the rigidity equations .

结果表明通过改变砂轮进给速度，控制砂轮移动间隔，可以改变磨削表面粗糙度，改善非球面磨削表面粗糙度均匀性。

The results show that grinding surface roughness can be adjusted by changing the feeding speed of the wheel and grinding walking control interval , which is an effective means to improve uniform roughness of aspheric in grinding .

给出了加工方案的确定原则，起始球面的选择，离轴抛物面非球面度的计算。

The determination principle of manufacture scheme , the choice of start sphere , the calculation of the asphericity of the off axis paraboloid are given .

对口径和相对口径较大的非球面，相邻子孔径间重叠系数应大于0.15，对于非球面度不大的非球面，重叠系数可大于0.25，能以较高精度求得拼接参量。

For aspherics with a large aperture and relative aperture , its overlapping coefficient of adjacent sub-apertures should be more than 0.15 . For aspherics with small asphericity , its overlapping coefficient may be more than 0.25 and the stitching parameters with higher accuracy can be obtained .

球面圆弧中心径向位移是工件产生球面轮廓形状误差的主要原因，而球面圆弧中心轴向位移则是球面产生球形对称度误差的主要原因。

The radial and axial displacements of spherical arc center are primary reason for form error , and spherical symmetry error respectively .

寻找最接近球面，使其沿法线方向与非球面的最大偏离量最小，此时的最大偏离量即为非球面的最大非球面度。

Through finding a best fitting spherical surface , making the maximum deviation between aspheric surface and the best fitting spherical surface minimum , the maximum deviation at this time is just the maximum asphericity of aspheric surface .