伺服

They can improve the measuring resolution 2-3 grade higher then ordinary direct subdivision technology. Based on Windows 95 operating system and object-oriented technology, a PCbased open architecture CNC hobbing system (including software platform and servo driving) has been developed and used in Y83A hobber successfully.

开发了基于PC总线的内嵌式开放结构的CNC滚齿机数控系统的配套硬件结构：滚齿范成运动的闭环数字式交流伺服驱动系统和滚刀轴向进给运动的步进伺服驱动系统。Y38A滚齿机上的应用实践，证明所进行的改造和开发的开放式CNC滚齿系统是可行的、成功的。

In this paper, a hydraulic press servo system modeled PX-8 was improved, and the servo controller was redesigned.

本文改进了PX-8电液伺服系统，对伺服放大器进行了重新设计。

In the fields of industrial automation and robot, there is a wide requirement for rotation position servo control.

在工业自动化和机器人领域，存在大量的旋转位置伺服控制需求，因此，对气动旋转位置伺服控制的研究具有实际的应用价值。

In this paper, based on the characteristics of robot visual servo system, a real-time image processing system based on TMS320C6201 is introduced, and the principle for robot visual servo system based on image Jacobian matrix is analyzed.

本文针对机器人视觉伺服系统要求快速准确的特点，设计了基于TMS320C6201的机器人视觉图像处理系统，并分析了基于图像雅可比矩阵的机器人视觉伺服方法的基本原理。

Our method is to record highly-precise mAgnetic or non-magnetic servopatterns on the disk by the technology of photoetching, and to read the servo information by the same magnetic head.

我们的方法是：采用光刻工艺，在磁盘上记录高精度有磁、无磁伺服图形，通过磁头读取伺服信息。

The gateway mainly consists of an admission controller and a request scheduler. To prevent the server from being overloaded while exhausting all resources, AC controls the forwarding rate of requests to the server. To provide proportionally differentiated system time between classes, RS schedules the requests according to three reformed latency-based scheduling algorithms including Waiting Time Priority, Mean Delay Proportional and Proportional Average Delay.

这个闸道器系统主要由许可控制机制与要求排程机制两大部分所组成，其中的许可控制机制透过控制转送要求的速度，除了可以避免网站伺服器过载，还可以尽量的有效运用网站伺服器上的资源；而要求排程机制则依据三种修改过的比例延迟演算法， WTP， MDP和PAD来进行要求排程，以提供不同等级间的整体回应时间比例差别服务。

Around the topic, the weak points of the traditional platform is analyzed first, such as complex arithmetic, long calculating time, high needs of hardware and so on. A real time control method based on virtual simulation is suggested to separate the complex positive/negative calculation of space kinematic and real time motion control. And a"3-2-1"type 6DOF platform is designed with the reference of the MAST (Multi-Axis Shaking Table) of MTS. The kinematic and dynamic calculation of the platform is finished. According to the calculating result, the control system of the"3-2-1"type 6DOF platform including 6 linear servo electric cylinders is designed and constructed. And the professional software Pro/E is used to do the 3D model and 6DOF motion simulation of the platform. The motion curves of the pistons of the 6 cylinders are exported with the simulation. At last the control software is programmed with Microsoft Visual Basic 6.0 and realizes the functions with the commands of GE series motion controllers. When loading the motion curves exported with the simulation, every cylinder can follow the curve very well and the platform realizes the hoped 6DOF motion.

围绕选题，本论文首先分析了传统的运动平台控制方法所存在的算法复杂、解算耗时长、硬件需求高的缺点，提出了一种基于虚拟仿真的实时控制方法，该方法将复杂的空间运动学正、反解与实时运动控制相分离；之后，参考MTS公司的MAST多轴振动平台，设计了新型的"3-2-1"型六自由度平台，并进行了运动学及动力学计算，根据相关计算结果，设计与搭建了包括驱动6个直线伺服电动缸在内的"3-2-1"型六自由度平台控制系统；接着，使用Pro/E对"3-2-1"型六自由度平台进行了三维建模和六自由度运动学仿真，并由仿真直接获得了6个直线伺服电动缸的活塞杆的相应运动曲线；最后使用Microsoft Visual Basic 6.0编写了控制软件界面，通过调用GE系列运动控制卡的各种命令函数实现了控制系统的相关功能，而当加载仿真得到的各缸运动曲线后，每缸均能很好地跟踪输入曲线，使平台实现了期望的多自由度运动。

First, a universal mathematic model for AC servo system is established based on the study of servo drive system of high precision numerical controlled working table, then a method for simplifying the model is proposed.

在对高精密数控工作台的伺服驱动系统研究的基础上，建立了交流进给伺服系统的通用数学模型，并且研究了系统模型降阶简化的方法。

Combine to emphasize the software design that introduced thought and design methods of the direct current servo control system, it included the design of the main procedure, give the design that settle the procedure, modify the design of the procedure and start the design of the procedure to break off the design of the procedure with the T0, passing to the fixed amount with comparison and PID that feedback measures control procedure, output the certain electric voltage, realize system opposite angles degree of accurate follow.

本文介绍了以 MCS—51单片机为控制核心的直流伺服控制系统的工作原理，并着重介绍了直流伺服控制系统的软件设计的思想及设计方法，它包括了主程序的设计、给定程序的设计、修改程序的设计、启动程序的设计和T0中断程序的设计，通过给定量和反馈量的比较及PID控制程序，输出一定的电压，来实现系统对角度的准确跟踪。

In simulation, the parameter perturbation of non-linear systems, amplifier troubles and servo stagnant trouble of system was studied, As a result, this method can diagnosis fault effectively.

仿真中以非线性系统的参数摄动时和伺服系统中的阀放大器故障和伺服阀卡滞型故障进行了研究，结果表明这种方法能有效的诊断出故障。

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。