伺服

Some basic theories and studies of rod pump test equipment such as displacement sample curves are introduced.

分析了几种现有有杆泵动态测试装置的总体方案，以及有杆泵动态测试装置伺服机系统目前已有研究基础及成果，给出了伺服机系统的样本曲线。

Drill a small hole slightly larger than the 4-40 rod through the radio box, lay your 1/4 scale steering servo in the box and line it up so the rod meets the servo horn without any excessive bending of the pushrod.

钻一个小孔略大的4-40棒通过广播中，奠定您的1 / 4规模的指导伺服方块中和线，让杆符合伺服非洲之角没有任何过度弯曲的的两个。

Owing to the increase of the line Q-factor, the electronics shifts of the atomic fountain frequency standard are reduced by 2 orders compared with that of the atomic beam standard when equivalent servo systems are used.

由于原子喷泉跃迁谱线Q值比铯束基准提高两个数量级，故在伺服电路精度相同时，原子喷泉频标中由伺服电路引入的频移将减小两个量级。

While the demand from Western countries will mainly be focused on the new generation of intelligent, servo-driven machines – like the Xpannd, the sleeve gearless mid-web Athena and the I-Combat – the emerging markets will concentrate on our mechanical or light servo models, such as E- and S-Combat or Quadra.

虽然需求来自西方国家将主要集中在新一代的智能，伺服驱动机-像X pannd，套筒齿轮中旬网上雅典娜和I -战斗-的新兴市场将集中于我们的机械或轻伺服模式，如电子商务和S -战斗或Quadra 。

In charpter Ⅳ, by the divisibility of the system, the design program of the multi-grade adaptive controller of the system is presented, and under the suppositions of realitic subsystems, the global stability of two-grade adaptive controller of the system is proved.

第四章，由电液伺服系统的可分性，对电液伺服系统自适应控制的可实现性进行了分析。

According to the change of the motor parameters, the torque ripple is analyzed based on the model .

永磁交流伺服电动机的转矩波动直接影响系统的控制精度，是最为关注的伺服性能指标之一。

This thesis analyses and studies the electric powered servo load system deeper based on the load system of one minitype robot bomb undercarriage, and brings forward some effectual control methods.

本论文就是基于某小型无人飞机起落架伺服加载系统的预研项目，对电动伺服加载系统作了较深入的分析和研究，提出了一些有效的控制方法。

The paper proposes a method which uses iteration learning control theory to design correction signal to self servo-writing loop. And the correction process can be used to conditions which precision model of plant can\'t be got. The convergence of iteration process can be proved by theory and experiments.

研究发现，自伺服刻写径向误差消除的过程很类似于迭代控制过程，提出用迭代学习控制算法设计自伺服刻写环路的校正信号，并从理论上证明该校正过程能够很好适应无法获取精确致动器模型的情况，证明了迭代过程的收敛性，实验证明径向误差得到较好抑制。

The influence of dynamic characteristics of positioning servo-system to machining precision is studied.

同时，将前馈控制与模型参考时滞控制相结合，对位置控制系统进行了仿真研究，实现了位置伺服系统的零跟随误差控制，为进一步提高位置伺服系统的控制精度和鲁棒性开辟了新途径。

The servo-system is an important part in the CNC machine.It decides the precision of the machine and the speed always.

摘 要：伺服系统是数控机床的重要组成部分，数控机床的精度和速度指标等往往由伺服系统决定。

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。