As a product, before the servo valve leaves factory, it should be tested strictly.
电液伺服阀作为产品，在出厂前须进行严格测试。
Static performance and frequency response test curves of the servo valve are given.
文中还给出了该阀的实验静态性能及动态频率特性曲线。
In dealing with the relationship of the servo valve position control and the adaptive control, the Double-loop control is adopted.
提出了伺服阀的位置控制和颤振的控制关系上采用可切换的双通道控制形式的设计思想。
The inputs of fuzzy controller are the error of slip ratio and its change ratio, the output of fuzzy controller is the control current of the servo valve.
模糊控制的输入变量为滑移率误差和误差的变化率，输出变量为伺服阀的电流。
The pneumatic servo positioning system, which is composed of rodless cylinder and the servo valve, is studied on mathematical modeling and control in this paper.
本文对由伺服阀和无杆气缸组成的气动伺服位置控制系统进行了数学建模和控制研究。
So instead of using Nd-Fe-B Alnico motor to reduce the size of the torque, but also on reducing the size of the servo valve, a reduction of quality, cost savings.
这样用钕铁硼代替铝镍钴就缩小了力矩马达的体积，也就可以缩小了伺服阀的体积，减少质量，节约了成本。
The operation principle and control method of electro-hydraulic digital servo valve are first introduced.
介绍了一种直动式电液数字伺服阀的结构原理及其控制方法。
This paper puts forward a new mechanical-hydraulic servo valve, and briefly introduces operation principle, structural characteristics and application of the valve.
本文提出了一种新的机液伺服阀，概要介绍了这种阀的工作原理，结构特点及应用情况。
According to the structure of servo mechanism on HD2se-ries pump, their functions have been analyzed. The structure and control process of constant power valve are mainly discussed.
根据HD 2系列泵伺服机构的组成，分析了它们各自在HD 2系列泵中所起的作用，着重讨论了恒功率阀的结构和控制过程。
The measurement of high frequency dynamical flow in dynamical test of electro-hydraulic proportional valve and electro-hydraulic servo valve is very difficult.
在电液比例阀和电液伺服阀动特性测试中，高频动态流量的测量一直是一个难题。
So, the ability of antipollution becomes the important performance of electrohydraulic servo valve.
因此，抗污染能力成为电液伺服阀的重要指标。
The test bedstand innovation scheme of the electrohydraulic servo valve performances is presented.
介绍了电液伺服阀性能测试试验台的改造方案。
The paper mainly focus on the experimental research on pneumatic on-off valve motor position servo control system with PCM control method and self-adjusting PID algorithm.
文章主要研究的内容为利用PCM控制技术，采用自适应PID控制算法，对开关阀式气动马达位置伺服系统进行实验研究。
Direct control of hydraulic servo valve by means of PLC can simplify the control of hydraulic system and reduce cost.
采用可编程控制器(PLC)直接控制液压伺服阀，可以简化控制系统，降低成本。
The pneumatic servo valve can preferably be choose and used promoting the precision of control system through the analysis and mathematical modeling of pneumatic servo valve.
对气动伺服阀的分析和数学建模，可以更好的选择利用气动阀，提高控制系统的精度。
This thesis puts forward a new direct-actuated digital servo valve, based on the studying relevant workings, and also advanced a new method modeling in hydraulic system.
本文在综述国内外电液数字控制技术及元件的相关研究成果的基础上，设计出了数字伺服阀的新型结构，并且提出了在液压系统中使用模块化建模的思想。
Compared with the valve servo system, there are some advantages, such as: simple structure, convenient operation and low price, etc.
与有阀伺服系统相比，具有结构简单、操作方便、价格经济等特点。
The selection of the electrohydraulic servo valve and the parameters of the rectifier are discussed.
同时讨论电液伺服阀的选取和校正方程的参数确定原则。
Because of the simple structure and small spatial volume, valve controlled asymmetric cylinder is widely applied in hydraulic servo system.
阀控非对称缸由于结构简单、空间体积小，广泛地应用于液压伺服系统中。
So the research and design of the digital servo valve is one of the most important aspects of nowadays hydraulic field.
因此在液压元件中数字伺服阀的设计与研究以及在它在具体领域中的应用是当今液压界的重要研究方向之一。
A pneumatic servo loading system was proposed and a specially designed pneumatic digital servo valve was introduced in the system for the purpose of precise control.
为了达到这一要求，提出了气动伺服加载系统并引入特殊设计的气动数字伺服阀。
In the actuator control, has used the MOOG valve servo-control mechanism, avoided the disadvantage factor which the control system wide range adjustment roller is apart from brings.
在控制执行机构的运用中，使用了行程较小的MOOG阀伺服控制机构，避免了控制系统大范围调节辊距所带来的不利因素。
High sensitive electromagnetic valve control the flow of water, the servo control system, the operation is extremely simple.
高灵敏电磁阀控制水流，随动控制系统，操作异常简便。
The design concept of the relative frequency amplitude ratio and the relative frequency width of toque motor stiffness of electro-hydraulic servo valve are proposed.
提出了利用相对频率幅值比和相对频宽的电液伺服阀力矩马达的设计概念。
The paper introduces the principle and fault of the mechanical - hydraulic servo system on locating the valve.
本文介绍了阀门定位用机液伺服系统的工作原理及常见故障。
The paper introduces the principle and fault of the mechanical - hydraulic servo system on locating the valve.
本文介绍了阀门定位用机液伺服系统的工作原理及常见故障。
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