查询词典 servo

By combining virtual instruments technique with the test technique of electro-hydraulic servo valve, the test system of electro-hydraulic servo valve based on virtual instruments has been developed by the graphics software-LabVIEW6.1. The test principle and method of electro-hydraulic servo valve were discussed in this dissertation. The experimental results on a Moog servo valve demonstrate that the design of electronic-hydraulic servo valve test system is valid.

本文将虚拟仪器技术和电液伺服阀性能测试技术结合起来，利用图形化软件工具—LabVIEW，研制开发出了基于虚拟仪器的电液伺服阀性能测试系统，对电液伺服阀的静、动态特性测试原理和方法进行了讨论和研究，以MOOG伺服阀为测试对象进行了静态特性测试和试验结果分析，验证了所开发的电液伺服阀测试系统设计方案的合理性。

Is a Moog high-performance family of products (servo valve, proportional valve, controller, servo motors, drives) the authorized agent, has a full range of the electro-hydraulic servo products, and to provide servo control systems engineering development and new product application development and other technical services, distribution of other world-renowned brand of hydraulic machinery and electronic products.

我们（佛山市润昌机电贸易有限公司）是穆格高性能系列产品（伺服阀、比例阀、控制器、伺服电机、驱动器）的授权代理，拥有全系列的的电液伺服产品，并提供伺服控制系统工程开发和新产品应用开发等技术服务，同时经销其他世界知名品牌的液压机电产品。

Servo controller is key part of antenna control system.In some servo controller,classic PID control algorithm is adopted. In order to improve precision of control system,the integral parameter has been turned too big to use because it will cause integral saturation which depress system performance.On the other hand,ISA bus is used to communicate between servo controller and main computer.ISA is low speed interface protocol,it cannot provide more data for complicated real time position control in servo controller.

伺服控制器是天线伺服控制系统的核心环节，经典的PID控制算法在整定时整定出的积分环节参数较大，很容易出现积分饱和，造成控制精度的降低；另一方面伺服系统中伺服控制器与主控计算机通过低速的ISA总线进行通信，无法满足控制器进行复杂的位置控制运算所要求的实时大信息量的数据传输。

Motion synchronization between tool in X direction and principal axis rotation was controlled by electronic gearbox in cam turning. And profiling mechanism could be superseded by servo tool-holder. Linear motor direct drive servo tool-holder was designed, and host-slave control system with PC and DSP was developed for the require of high-speed and realtime servo. The technical process was analyzed in cam turning. Servo tool holder with tool swinging and principal axis variable rotate speed were presented to keep constant cutting angle and speed.

将电子齿轮箱用于凸轮车削加工系统的传动，以伺服刀架取代了传统加工的靠模装置，实现了刀具X方向直线运动与机床主轴转动的同步控制；设计了直线电机直接驱动的伺服刀架及基于PC与DSP构成的上—下位机控制结构，采用DSP进行实时控制以满足高速伺服需要；对凸轮加工过程的工艺特点与恒角度、恒速度车削进行研究，提出了具有刀具摆动功能的伺服刀架与机床主轴变转速运动方案。

However, the servo technology which exists as a kind of software in DSP, determines the performance of the servo system. The unadvanced servo technology extremely restrains the development of high performance servo system of our country.

然而，以软形式存在于控制芯片中的伺服控制技术是决定伺服系统性能指标好坏的关键技术，它成为制约我国高性能交流伺服技术及产品发展的瓶颈。

The system hardware circuits are also designed. 5. The model of VCR software servo system is made. The reference signals for servo system are produced by software. Based on μPD78148, the algorithm to calculate speed and phase errors for drum and capstan servo is given.

建立了录像机软件伺服系统的模型，用软件方法产生了伺服系统所需要的基准信号，提出了基于μPD78148的磁鼓伺服及主导轴伺服的速度误差及相位误差的算法。

In the system of high precision and low speed, Because of the existence of the nonlinear friction, the static and dynamic performance of the servo system is very bad, such as stick slip, hunting, large error and so on, Because the traditional control of PID is hard to solve the nonlinear problem of the servo system, so this paper begins to introduce a new control method which is named adaptive fuzzy PID, It utilizes the rule of the fuzzy control to adjust the parameter of proportion, integral and differential on line, So this control method has some intelligence to improve the static and dynamic performance of the servo system.

在高精度、超低速伺服系统中，由于非线性摩擦环节的存在，使系统的动态及静态性能受到很大程度的影响，主要表现为低速时出现爬行现象，稳态时有较大的静差或出现极限环振荡；由于传统的PID 控制很难解决伺服系统中的非线性问题，因而不能适用于高精度、超低速伺服系统；本文通过引入模糊自适应整定PID控制，利用模糊规则在线调整比例、积分、微分环节，使系统具有一定的智能，从而非常明显的改善伺服系统的静态及动态性能。

SANO intelligent servo transformer is a super-small size servo transformer, specifically developed for the non-compatibility voltage between the China Electrical and the alternating servo motor.

SANO三相智能型伺服变压器是专门针对中国电网与交流伺服电机所需电压不匹配而设计的超小体积三相伺服变压器。

A dynamic mathematical model for the servo-system is developed, and the influences of the dynamic characteristics of a CNC servo-system on the machining accuracy of crank journals is discussed with the servo-system simplified to a first-order one.

而且，随着汽车产品的更新换代，对曲轴零件的加工精度和表面质量有了更高的要求。

As the servo power limited resources, when the force reaches the maximum when the servo, that application of the vacuum chamber is zero (ie, a standard atmospheric pressure), servo power will be a constant, no change.

由于伺服力资源的有限性，当达到最大伺服力时，即应用气室的真空度为零时，伺服力将成为一个常量，不再发生变化。

Apllied the data of QuickBird-2——the highest resolution remote sensing,and based on the theory and methodology of fractal geometry,we have quantitatively studied remote sensing lineations in Gaolong gold deposit of Guangxi.

采用Quick Brid-2高分辨率卫星遥感数据，通过分形几何学的盒计维数法，定量研究广西高龙金矿区遥感线性构造。

So, sometimes, to change the color can not be your food (referring to the above-mentioned crustacean) has been a sign of boiling over.

所以，有时，来改变颜色，不能你的食物一直是沸腾了的迹象。