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。
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。
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。
It can control and graduate sinusoidal curve and triangle wave curve by using axis servo valve.
通过采用轴伺服阀，可实时控制并产生正弦曲线和三角波形曲线。
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。
Some faults such as amplifier offset, parameter changes, servo valve backlash and sensor fault are seeded in a virtual way by means of different switches in Simulink.
通过不同开关的动作来虚拟模拟常见的故障，诸如，放大器漂移、系统参数改变、伺服阀反冲以及传感器失灵等。
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。
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 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。
A novel piezoelectric type nozzle flapper hydroelectric servo valve was developed and its control method was researched.
提出了一种新型压电晶片型喷嘴挡板式电液伺服阀，并对其控制方法进行了研究。
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。
This paper develops a direct-drive electrohydraulic servo valve of a completely new structure.
研制了一种全新结构的直接驱动电液伺服阀。
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。
Servo valves consists of feedback - electric-hydraulic servo valve and position feedback servo valves.
伺服阀主要分为力反馈式电液伺服阀和位置反馈式伺服阀。
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。
This paper describes design of a test stand for repairing servo valve which is specially suitable for servo valve user.
本文论述了一种伺服阀维修试验台的设计。该设计特别适合伺服阀用户的使用。
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。
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。
This paper presents an analysis and methods of calculation for the static and dynamic characteristics of a low cost moving-coil high pressure type electrohydraulic servo valve.
本文介绍一种成本低的动圈式高压电液伺服阀的静、动态特性的计算与分析。
Mathematic models of servo valve controlling asymmetrical cylinder hydraulic system are established.
建立了伺服阀控非对称缸的理论模型。
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 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。
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。
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。
The method of direct control of hydraulic servo valve by means of PLC, the component parts of the control system and the driving interface circuits were described mainly in this paper.
文章主要介绍PLC对液压伺服阀的控制方法及控制系统的组成，说明驱动接口电路的连接。
By adopting a 2d pneumatic digital servo valve composed of servo spiral mechanism, conventional two-stage pneumatic servo valve structure is simplified while its performance is greatly enhanced.
利用一种伺服螺旋机构构成的二级气动数字伺服阀(简称“2d气动数字阀”)，简化了传统二级气动伺服阀的结构而性能却有较大提高。
By adopting a 2d pneumatic digital servo valve composed of servo spiral mechanism, conventional two-stage pneumatic servo valve structure is simplified while its performance is greatly enhanced.
利用一种伺服螺旋机构构成的二级气动数字伺服阀(简称“2d气动数字阀”)，简化了传统二级气动伺服阀的结构而性能却有较大提高。
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