伺服控制

Experiments show that it can improve the accuracy and the transient response of the system.

理论分析和实验结果都表明，该控制方法能有效地提高伺服刀架的跟踪精度。

Variation of the system parameters and external disturbances always happen in the CNC servo system.

在数控伺服系统中，当系统参数发生变化或者受到外界干扰时，采用PID控制容易导

Aiming at T-base diamond lathe, author use both on-line and off-line to measure the error vector of lathe workspace, and acquire good network train samples, then build two-dimensional error compensation model of lathe workspace with BP neural network and fuzzy neural network, at last build contour error compensation control system.

在分析国内外数控机床伺服闭环系统的发展现状及局限性的基础上，利用原数控系统和所研制的二维压电陶瓷微动刀架，研制了独立于原数控系统的超精密闭环控制系统。

This DLL in turn downloads a pirated copy of Kaspersky AntiVirus for WinGate from the control server into a concealed directory on the infected system.

这反过来下载DLL的一个翻版kaspersky控制伺服器防毒为温从隐蔽到受感染的系统目录。

Zero phase error tracking control method can improve the tracking performance of servo system, but there still exists problems such as weak robustness and gain error.

零相差跟踪控制方法可以提高伺服系统跟踪性能，但仍存在鲁棒性不强和增益误差的间题。

The system main demo function s and the method to find the zero point are also given.

介绍了伺服电动机在位置控制演示中的应用；叙述了系统的主要组成部分；阐述了系统的主要演示功能和零点找寻方法。

They allow that the backend server could delegate the reader to identify the tag information. But the Fouladgar and Afifi's SiDES protocol will suffer from the replay attack, forgery attack, Denial-of-Service attack and fail to achieve the forward security. Although Lin's protocol uses timestamp to control the delegation, it does not keep forward security property under the same time frame.

在2007年，Fouladgar和Afifi首先提出了离线式SiDES协定，接著Lin也提出了TCD-RP协定，可让后端伺服器可以授权读取器辨识标签的资讯，但Fouladgar和Afifi的SiDES定理，会遭受重送攻击、伪造攻击、阻断服务攻击以及不具有向前安全性的特性；而Lin的协定虽然使用时戳来做授权的控制，但在相同的时间区段下运作，并不具有向前安全性的特性。

The controllers include ＂roughly regulating fuzzy controller＂ and ＂refinedly regulating fuzzy controller＂.

实验研究表明，在摆动气缸位置伺服系统中采用该控制器，能获得较好的控制效果。

The Bioloid Multi-bot is the first robot of its kind to be built around serially controlled servo technology.

在Bioloid多僵尸是第一个机器人的同类要围绕串行控制伺服技术。

Shaftless unwind and rewind units use AC servomotors and pneumatic chucks for faster and easier roll handling while maximizing control accuracy.

轴放松和倒带单位使用的交流伺服和气动夹头更快和更容易辊处理的同时，最大限度地控制精度。

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。