Developed a new type of piezoelectric bending actuator used as electrics-to-mechanics converter of a piezoelectric hydroelectric servo-valve.
研制了一种压电弯曲元件型压电驱动器，该驱动器用于电液伺服阀的电-机械转换器。
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。
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。
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。
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。
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 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。
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。
The new type servo valve can be used in the vibration test bench, the fatigue test bench, and the various hydraulic control systems which need fast response characteristics.
新型伺服阀可以应用于振动试验台、疲劳试验台及需要快速反应的流体控制系统中，可提高系统的快速响应特性。
This paper introduces the designing of a moving coil electrohydraulic servo valve which improve the ability of antipollution.
通过对一种动圈电液伺服阀的液压桥路和具体参数的设计，提高了这种伺服阀抗污染的能力。
This instrument can output 3v power to servo valve and is convenient for testing servo valve and oil motor at site.
本仪器可输出3V电源给伺服阀，便于伺服阀和油动机现场调试使用。
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。
Currently, the design of shaking table control system is based on two assumptions, i. e. linear servo valve, and rigid table and payloads.
振动台控制系统设计时对物理系统进行了两个基本假设：伺服阀线性、台面和负载刚性。
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。
It also testifies the intermediate variate in the system is servo valve loading pressure ; compensator is a first derivative element.
可以证明本系统的这种观测量是伺服阀的负载压力，而所谓补偿器是一个一阶微分环节，因而容易实现。
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。
Therefore, in order to improve the performance of hydraulic servo valve, it is important to study the mathematical model and distribution of jet flow field.
因此，为了改善由射流前置级驱动的伺服阀的性能，研究伺服阀前置级射流流场的数学模型及分布规律是至关重要的。
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。
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 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。
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