伺服控制

This paper gives a new method to design the controller for electro-optical tracking servo system.

本文的研究为高精度光电跟踪伺服控制系统的设计提供了新方法。

In the basis of the above analysis, the overall servo system is derived.

由此提出了光盘机伺服控制系统的整体设计方案，并予以实现。

The linear motor in this application is teamed with a servomotor that controls the speed of the coil winding mechanism.

直线电机在这一应用是独自与伺服控制速度的绕线机制。

First,the mathematic model of joint position servo control system is deduced,then,the sliding mode variable structure control rule is obtained,finally experiment study is carried through.

首先推导了下位机关节位置伺服控制系统的数学模型，然后推导了在上位机上实现的滑模变结构控制率，并进行了实验研究。

The study demonstrates that there are four ways to expand the bandwidth of servo control system of the electro-optical theodolite: 1 Improving the free vibrancy natural frequency of optical-electronic theodolite; 2 To compensate the structural syntony ; 3 Using electric current feedback; 4 Using acceleration and velocity feedback.

研究表明，提高光电经纬仪伺服控制系统带寛有4个途径：1）增大光电经纬仪固有频率；2）对结构谐振进行补偿；3）使用电流反馈；4）使用加速度和速度反馈等。

At the same time, the effect of structure dynamics characteristic to the servo control system of optical-electronic theodolite is analyzed.

同时，分析了光电经纬仪的结构动态特性对伺服控制系统的影响。

Turn-table is one of the devices which are used to simulate aerocraft s performance on the ground .

仿真转台是对飞行器进行地面物理仿真的设备，是一个具有一定非线性和不确定性的伺服控制系统。

Cogging force deteriorates significantly positioning accuracy and tracking accuracy of servo system in a permanent magnet linear motor.

直线电动机cogging力是影响伺服控制定位精度和跟踪精度的重要因素。

Gradually accurate results of cogging force identification are shown, and the comparisons of tracking errors with and without cogging force compensation are also given.

所提出的方法已在气浮结构运动平台上进行了验证，给出了cogging力迭代标定的试验结果，对比了cogging力补偿前后的伺服控制跟踪误差。

According to the functional requirements of AC servo system and the modularize design method of FPGA. The whole system is divided some modules. Then designing those modules dividually and synthesizing them to finish the system.

针对交流伺服控制系统的功能要求，根据FPGA模块化设计的特点，把整个设计任务划分为若干功能模块，分别对这些模块进行设计，最后把各个功能模块进行综合，以完成整个设计。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。