查询词典 servo

The present invention relates to a method for heuristically starting up DC brushless servo electric machine, including the following steps of (1) after powerup of an increment type photoelectric encoder, electrifying a stator winding two by two with identical time interval to generate six-directional stator winding resultant magnetic fields;(2) detecting six different angles rotated by the rotor within identical tiny time interval by the photoelectric encoder;(3) selecting most positive value rotation angle from the six different angles, and determining maximum torque corresponding to the stator winding resultant magnetic field, and implementing servo startup using the maximum torque as constant starting torque;(4) after the zero-point signal of the photoelectric encoder occurring, switching to servo operation with normal constant torsion.

本发明直流无刷伺服电机试探启动方法，采用如下步骤：(1)增量式光电编码器上电后对定子绕组采用相同的时间间隔两两通电，顺序产生六个方向的定子绕组合成磁场；(2)由增量式光电编码器检测出转子在相同的微小时间间隔内分别转过的六个不同的角度；(3)从转子六个不同的角度中选出最大正值的转角，确定相应定子绕组合成磁场对应的最大转矩，并以该最大转矩为恒定启动转矩进行伺服启动；(4)当增量式光电编码器零点信号出现后，切换为正常恒转矩伺服运行。

By the research of AC servo system , we prepare to combine the application of Ac servo system and the the design of Foot orthosis for the first time , openningout a new application field of AC servo system.

本文针对数控技术、交流伺服系统和足底矫形器加工特点进行研究与分析，首次将交流伺服系统的应用与足底矫形器的设计相结合，开发出交流伺服系统新的应用领域。

It uses AMESim to Model and Simulate the servo-cylinder hydraulic system of the straightening machine and discovers the reasonable pr essure of overflow valve between the servo valve and Rodless cylinder servo cavity.

根据油缸压力信号，采用 AMESim 对矫直机伺服缸液压系统进行建模与仿真，找出伺服阀出口和伺服缸无杆腔之间的溢流阀的最合理压力。

At same time it collects the pr essure signal of Servo-cylinder, it finds that the overflow valve pr essure sets too high between the servo valve and Rodless cylinder servo cavity, Tanks should not stress-free cavity under unloading, According to the fuel tank pr essure signal.

摘 要：本文针对某热轧厂横切线上的主要设备矫直机在矫直高强度，厚规格产品时，当负载受到外扰动时，矫直机传动轴经常断，工作辊轴承经常损坏现象，于是对伺服缸压力信号进行采集，发现装在伺服阀出口和伺服缸无杆腔之间的溢流阀压力设置过高，油缸无杆腔压力不能卸荷。

Firstly, this thesis makes an introduces on the developement of PMSM servo system based on DSP. According to the control theory of AC PMSM servo system, this paper analyzes the coordinate transformation, the rotor magnetic field orientation and the current control strategy of AC servo system. The control strategy is i_d=0. The system is orientates towards rotor magnetic field. Then the mathmatic models of PMSM in d-q coordinate are set up.

本文首先对基于DSP的永磁同步电机伺服系统的发展概况进行了介绍；根据永磁同步交流伺服系统的基本控制理论，分析了交流伺服系统坐标变换原理、常用的磁场定向方式及电流控制策略，并给出i_d=0电流控制策略及永磁同步电机按转子磁场定向的控制方式，从而建立永磁同步电机d-q坐标系下的数学模型。

In order to reduce the expend of the development of TV guidance bomb, it refits the servo actuators of some missile for the servo actuators of the pitching loop and the yawing loop, and then, it tests the characteristic of the actuators and makes the actuators satisfy the basic requests; for the tumbling loop, the servo actuator adopts three-position relay control fashion to make the loop be stable by using the relay control circuit, the three-position and five-passage valve and the gas amplification device.

为了降低电视制导炸弹的成本，对于俯仰、偏航稳定回路，采用某型号导弹的舵机进行改装，并对改装后的舵机的特性进行测试，使舵回路达到一定要求；对于滚转稳定回路，采用三位置继电控制舵，通过继电放大器、三位五通阀和气动放大器来控制舵面的偏转，以此来实现滚转稳定。

Considering the inconvenience of regulation and difficulty of parameter tunning as AC servo system in practical situation, three ways of intelligent control approach to realize auto-tuning and autorecognization of AC servo system, are proposed, which is a robust controller based on two-degrees-offreedom with no tuning to controller, a auto-tuning controller based on fuzzy reasoning with no inertia recognization but tuning parameter of controller, a strategy recognizing inertia of servo system and tuning parameter or structure of controller automatically. In the same time, these control strategies are analyzed from the theory and reliability. The comparative analysis of three measures on strong and weak points is made by simulation and experiment results.

针对交流伺服系统在实际应用中存在的系统调试不便、参数调整困难等问题，提出了实现交流伺服系统自调整和自识别等智能化控制策略的三条途径：一是具有控制器无调整特点的二自由度鲁棒性控制器；二是惯量无识别但需自动调整控制器参数的模糊推理自调整控制器，三是自动识别伺服系统转动惯量并自动调整控制器参数和结构的方案，从理论分析和可实现性两方面对这些控制方案进行了论述，并通过仿真和实验研究，对比分析了各种方案的优缺点，得到了一些有益的结果。

From the experiment and analysis, it can be seen that friction limits realization of high accuracy electro-hydraulic position servo system, movement of any gimbal brings disturbance moment to servo system of other gimbals and the disturbance moment causes error, and, resolution ratio error and setting error of feedback measurement element are directly added to servo system output.

通过实验和仿真可以看出，摩擦阻碍了转台电液位置伺服系统商精度控制的实现，任何一个框架的运动都会对其余框架的伺服驱动系统产生干扰力矩并引起伺服系统误差，反馈测量元件的分辨率误差和安装误差直接反映在伺服系统输出上，对伺服系统的精度有直接影响。

Under this situation,the Hore component will always keep up with the target"s movement and keep in the magnet"s unitary gradient magnetic field.On this subject,Chen Wenxiang"s Using feedback servo mechanism to scale-up the measurement range on the shift by Hore sensor and Chen Dongjun"s Study of a kind of Hore shift sensor with feedback servo mechanism have achieve the rudimental results. It shows that using self-tracking or servo system to scale-up the measurement range of the Hore sensor is reasonable.

在这项研究工作上，陈文芗《采用反馈随动机构扩大霍尔传感器位移测量范围》、陈东军《一种带有反馈随动机构的霍尔位移传感器研究》已经取得了初步的成果，他们的成果表明采用随动机构扩大霍尔元件的测量范围是有效可行的。

Power-Servo by the Sino-German joint-venture companies operating in the professional CD-ROM production equipment electronic circuit systems, CNC systems, industrial control systems, SCM, and so on Research and Development, maintenance, automation project design, programming and debugging as one of the installation of automated Technology high-tech companies, such as: AE Power, Honle, UV-Tech UV lamp power, Pfeiffer Pfeiffer pumps, Leybold molecular pump, alcatel Alcatel pumps, WDP controller, AC-DC servo amplifier, servo drives, Drives, Light-foot signal processors, digital sensors, industrial motherboards, industrial switching power supply, I / O board, DC governor, PLC, touch screen monitors, human-computer interface, multi-axis controller, etc. China is the first CD-ROM industry CD production equipment maintenance center Microelectronics, Germany Spectairs authorized by China's optoelectronics and sophisticated technical support center.

Power-Servo公司是由中德合资经营专业从事光盘生产设备电子电路系统、数控系统、工控系统、单片机等等开发研究、维修、自动化项目设计、编程、安装调试为一体的自动化技术高科技公司，如： AE电源、Honle、UV-Tech UV灯电源、Pfeiffer普发分子泵、Leybold分子泵、alcatel阿尔卡特分子泵、WDP控制器、交直流伺服放大器、伺服驱动器、变频器、光尺信号处理器、数字感应器、工控主板、工控开关电源、I/O板、直流调速器、PLC、触摸屏显示器、人机界面、多轴控制器等等是中国光盘行业首家光盘生产设备微电子维修中心，德国Spectairs授权的中国光电子和精密技术支援中心。

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。