Force control of a spherical parallel mechanism actuated by pneumatic muscle actuators is studied, including the analysis of static force relationship, force control strategy and algorithm.

1、

A general talk about total station apparatus triangulated height measurement ANALYTICAL SYNTHESIS OF 3-DOF SPHERICAL PARALLEL MECHANISM HAVING EQUAL APEX ANGLES

浅谈全站仪三角高程测量等顶锥角3自由度球面并联机构的全参数解析尺度综合

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2、

Study on the decoupling conditions of the spherical parallel mechanism based on the criterion for topologically decoupled parallel mechanisms

基于拓扑解耦准则的球面并联机构解耦条件研究

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3、

Stiffness Analysis of Spherical Parallel Mechanism 3-RRR with 3-DOF

3-RRR3自由度球面并联机构静刚度分析

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4、

Transformation from Spatial RSSR Mechanism to Spherical 4R Mechanism

空间RSSR机构向球面4R机构的转化

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5、

The effect of assemble errors on the transmission error of the spherical gear mechanism is analyzed and simulated.

分析研究了安装误差对球齿轮机构传动误差的影响。

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6、

Spherical gear mechanism is a new type of gear which can transfer two-dimensional overall motion.

球齿轮机构是一种能传递空间二维运动的新型齿轮机构。

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7、

Involute spherical gear mechanism ′ s modeling and kinetics simulation

渐开线球齿轮机构造型及其运动学仿真

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8、

The principle of outside installation mechanism in laser tracking measurement system is introduced and a spherical mechanism method is adopted to design the 2D tracking circumrotatory mechanism according thedevelopment of laser tracking measurement system in global.

作者根据国内外激光跟踪测量系统发展情况，介绍了外置式激光跟踪测距系统的原理，采用球形跟踪伺服装置的设计思想，设计了两维旋转跟踪伺服装置。

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This paper present a new approach which uses virtual reality ( VR) to design spherical mechanism. VR is a new design interface, which can provide a three dimensional design space.

利用虚拟现实的方法来设计球形机构，并把VR作为一种全新的设计接口，可在三维空间中实现球形机构的设计和论证。

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10、

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.

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。

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11、

The easy and correct theoretical calculating formula is provided for calculating degree of freedom of planar and spherical mechanism.

为计算平面、球面机构与结构自由度提供了更为方便快捷正确的理论计算式。

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12、

The forward and inverse position problems of the 2-DOF and 3-DOF parallel spherical mechanism are studied.

回顾了并联机构位置正反解研究的数学基础，研究了2-DOF和3-DOF球面并联机构位置正反解问题；

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13、

Analysis of Spherical Mechanism through Quaternion Transformation

四元数变换分析球面机构

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Spherical Mechanism Analysis Based on Virtual Reality

基于虚拟现实的球形机构分析

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15、

A new method on Synthesis of spherical mechanism

球面四杆机构综合的新方法&单位矢法

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The S~ r joint is a 3-DOF spherical mechanism, considered as a composite spherical joint, R is the revolute joint and U is the universal joint.

其中S为3自由度球面机构，为复合球铰，R为转动副，U为虎克铰。

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17、

Finally, take a kind of two-looped spherical mechanism with a single degree of freedom as an example the condition of complete balance of its swinging force was derived.

最后以一种单自由度两环球面机构为例，导出了其摆动力完全平衡条件。

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18、

The obtained α-Al_2O_3 powders have no obvious agglomeration, narrow particle size distribution, spherical shape and a mean particle of 20 nm.

实验获得的纳米α-Al2O3粉体粒度分布均匀，无明显团聚，近似球形，平均粒径约为20nm。

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19、

Spherical optical lens is hard to form ideal photos in practical use.

球面光学透镜在实际应用中难以形成理想的像。

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20、

According to the comprehensive evaluation of the final optical system, this structure could achieve the requirements of large field zoom lens in the digital camera. All the lenses composing the zoom system are spherical lens, so the production cost could be reduced effectively.

评价结果表明，这种结构形式可以实现大视场要求的数码相机变焦距物镜设计，组成系统的全部镜片都为球面透镜，使加工变得容易，降低生产成本。

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