电液伺服阀

本文介绍电液伺服阀频率特性的压差式测试原理及频率特性测试仪的硬软件结构、原理及特点。

This paper presents the principle , hardware structure , and features of a frequency characteristics instrument for electro-hydraulic servo valves .

直动式电液伺服阀的开发与应用

The development for direct drive electric-hydraulic servo valves and its applications

基于BP神经网络电液伺服阀多参数故障模式识别研究

The Research on Multi-parameter Fault Model Identification of Electro-hydraulic Servo Valve Based on BP Nerve Network

电液伺服阀动态相频特性CAT数据处理误差分析

Analysis of the cat data process error for electro-hydraulic servo valve dynamic phase frequency characteristics

在计算机辅助测试（CAT）条件下，对电液伺服阀频率响应特性测试数据进行了离散化处理。

Under the condition of CAT ( Computer aided test ), the test data about electro-hydraulic servo valve frequency response characteristic is processed with the discrete way .

大型汽轮机组DEH系统电液伺服阀的应用及维护

Application and Maintenance of Electrohydraulic Servo Valve in DEH System of Large Size Generating Units

针对传统电液伺服阀的抗污染能力不高的问题，提出了全新的U形四孔全桥式液压桥路的设计方案。

In view of the low anti-pollutional characteristic of traditional electrohydraulic servovalves , a new design plan of U form and four bores entire hydraulic bridge was proposed .

通过实验提取一些常见故障模式的特性曲线，运用BP神经网络，实现了电液伺服阀的故障诊断和模式识别。

We picked the characteristic curve of the usual fault modal by the experiment and applied a BP network in fault diagnosis . And then we completed the fault diagnosis and modal identification .

事实证明，采用了利用虚拟仪器的计算机辅助测试（CAT）系统，使电液伺服阀的测试实现了自动化，简化了仪器仪表等设备，加快了测试速度，提高了测试精度。

The fact proves that the computer aided testing system with the application of virtual instruments realizes the test automation , simplifies the test devices , accelerates the test velocity , and raises the test precision .

通过利用增量式PID控制方法，采用工业控制计算机、计数器/定时器及数模转换器，实现了对电液伺服阀的准确控制。

The incremental PID algorithm is applied in the electro-hydraulic servo valve control system to achieve accurate control , and the industrial PC ( IPC ), Counter / Timer and D / A module are adopted in the hardware design .

随着计算机辅助测试（CAT）技术的发展，电液伺服阀性能测试技术取得了很大进步，而虚拟仪器技术的出现，更使电液伺服阀性能测试技术达到了一个新的高度。

With the development of computer-aided test ( CAT ) technique , the test technique of electro-hydraulic servo valve has made a great progress , also gone up to a new high level with the appearance of virtual instruments technique .

详细分析所得数据并根据所检测参数得到双喷嘴挡板电液伺服阀具体的传递函数。然后，应用Matlab软件对其进行仿真试验对比，得出影响性能参数的主要规律。

A detailed analysis of the data to be two-nozzle baffle electro-hydraulic servo valve specific transfer function . Then , Matlab software applications to carry out simulation tests contrast , come to affect the performance of the main parameters of the law .

对电液伺服阀动态特性及静态特性的计算机辅助测试问题进行了研究，并结合实例介绍了测试系统的构成、CAT部分的硬件配置及软件编制。

This paper deals with computer aided test on the dynamic characteristics and static characteristics of electro hydraulic servovalve , and uses an example to explain the construction of test system , the collocation of hardware and the programing of software .

利用GMM设计新型的电机转换器，取代传统型电机转换器，如力矩马达或力马达等，可提高整个电液伺服阀的响应速度和控制精度。

Utilizing GMM to design new-type actuator , replacing traditional actuator such as the torque motor or the force motor , will enhance the response speed and precision of electro-hydraulic servo valve .

QDS-1-210型电液伺服阀实验台的研制

The Development of Electro Hydraulic Servo Valve Test-Stand QDS-1-210

采用高性能的数字信号处理器TMS320LF2407为核心设计了数字式防滑刹车控制盒，重新设计了指令传感器、轮速传感器和电液伺服阀的检测电路。

Antiskid braking control box is designed with high-performance digital signal processor TMS320LF2407 , and the measuring circuits of wheel speed sensor , instruct sensor are redesigned in the article .

另外还针对QDY-6型电液伺服阀设计了电液伺服阀的功率放大电路。

In addition , we also designed power amplifying circuit for QDY-6 electro hydraulic servo valve .

液压AGC系统主要由信号调节器、伺服放大器、电液伺服阀、液压缸、轧机辊系和传感器等组成，其中的液压器件具有高度非线性特点，其系统必然也具有高度的非线性。

Hydraulic AGC system is been made of main dynamic element , which include signal conditioner 、 servo amplifier 、 hydraulic servo valve 、 fluid cylinder 、 mill roll and primary detector , etc. These elements have high nonlinear feature , the system have inevitably high nonlinear .

应用电液伺服阀提高磨削机同步精度

Increases the Milling Machine Synchronization Precision Using the Electrohydraulic Servo Valve

电液伺服阀用新型驱动器特性研究

Study on Characteristics of a New Actuator Used to Electrohydraulic Servovalves

研究了电液伺服阀自动测试的方法。

The method of automatic testing servo - valve was studied .

电液伺服阀的改进型智能故障诊断研究

Research on the improved intelligent fault diagnosis for electro-hydraulic servo valve

基于特性曲线的电液伺服阀神经网络故障模式识别

Characteristic Curve Based Fault Modal Identification for Electro-hydraulic Servo-valve Neural Network

双喷嘴挡板式力反馈电液伺服阀可靠性设计与研究

Design and Study to Reliability of Double Flapper-Nozzle Force-Feedback Electrohydraulic Servovalve

利用计算机技术实现对电液伺服阀的控制

Realize Control of the Electro-hydraulic Servo Valve by Using Computer Technology

轧机液压压下电位移反馈电液伺服阀的测试与调整

Testing and Adjustment of Electrohydraulic Servo Valve of Electric Displacement Feedback

电液伺服阀控马达速度闭环数字控制系统的应用研究

Application of Electronic-Hydraulic Closed Digital Servo Motor Speed Control System

电液伺服阀的内泄漏特性及故障在线分析实例

Internal Leakage Trait of Servovalves And Its One Instance of Fault Analysis

电液伺服阀在三维数控弯管系统中的应用研究

Application of electro-hydraulic servo valve control in three-dimensional CNC pipe bending machine

电液伺服阀控液压缸系统及其主回路的频域辨识

Frequency domain identification of electro-hydraulic servovalve-controlled cylinder system and its main circuit