This paper introduces an electrohydraulic control system based on PLC. A double close - loop control system with electro - hydraulic proportional valve is adopted.
一种基于PLC的电液自动控制系统，采用了电液比例阀的双闭环控制系统。
A new type of electro hydraulic digital relief valve, which is a pilot pressure control component directly controlled by digital information is introduced.
介绍的新型电液数字溢流阀是一种数字信息直接控制的导控式压力控制元件。
The electro-hydraulic proportional control valve uses the proven force feed-back system for improved hysteresis, repeatability, and response.
电液比例控制阀使用的证明力反馈改善滞后性，重复性系统和响应。
TYB series waterflood pressure regulating systems consist of two cylinder four chamber pump body, electro hydraulic reversing valve, control fluid circuit and control current circuit.
TY B系列调压注水装置由双缸四腔泵体、电液换向阀、控制液路及控制电路组成。
Electro liquid control plug valve is the high and new technical equipment applied in FCC unit in recent years.
电液控制塞阀是近年来应用于流化催化裂化装置的高新技术设备。
Actuator can adjust the opening size of each steam valve by responding to the electro-instruction sent from DEH.
执行机构响应从DEH送来的电指令信号，以调节汽轮机各蒸汽阀开度。
The matching test for F8 electro pneumatic brake and U5A empty and load adjustment valve is described. The testing results are analysed. The matching parameters and mounting plan are put forward.
介绍了F8电空制动机与U5A空重车调整阀的匹配试验情况，对试验结果进行了分析，提出了匹配参数及装车方案。
Elaborates al sheet mill spray system, introduces mill spray control mechanism of electro-air proportional valve.
阐述铝箔轧机喷淋系统，介绍电—气比例阀在轧机油喷淋方面的控制机理。
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。
Finally, the proportional electro-pneumatic changeover valve is designed, keeping in view the domestic technology and production capability.
最后结合我国现有的技术特点和工艺、生产能力，完成了比例电空阀的设计。
According to actual conditions, design a fuzzy adaptive PID controller to control the openings of the electro-hydraulic proportional valve port, implementing a safe and smooth braking.
依据实际工况，设计了一种模糊自适应PID控制器来控制电液比例调速阀阀口的开口量，实现系统的安全、平稳制动。
Lifting control valve is the control center of hydraulic lifting system of dumpers, which is classified into electromagnetic type, electro-hydraulic type, manual type and air-powered type, etc.
举升操纵阀是自卸汽车液压举升系统的控制中心，该操纵阀分为电磁式、电液式、手动式和气动式等几种。
In addition, we also designed power amplifying circuit for QDY-6 electro hydraulic servo valve.
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。
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。
It analyzes the recent fault for the second-stage double acting slide valve, and summarizes the methods of judging and treating the common fault for electro-hydraulic actuator.
并结合实际情况，对近几次二再双动滑阀发生的故障进行分析，总结了电液执行机构常见故障的判断和处理方法。
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。
A new kind of electro hydraulic on off valve is expatiated on for fuel injection system of electronic controlled diesel engine.
阐述一种用于柴油机电控喷油系统的新型电液开关阀。
Equipped with flow regulator in system, electro-hydraulic proportional speed regulating valve can decrease leveling time in high speed gear, and ensure leveling accuracy in low speed gear.
系统中设有流量调节环节，电液比例调速阀在快挡可以缩短整个调平时间，在慢挡可以保证调平精度。
In the way of loading, electro-hydraulic proportional valve is used.
在加载方式上，采用电液比例阀。
A cascade control method for the pressure control of the mixed gas is presented based on an electro-hydraulic control valve.
针对该问题，提出通过电液调节阀对混合煤气进行串级稳压控制。
The test results show that the electro-pneumatic proportional valve based on PWMtechnology features smooth performance and conforms to the requirement by electro-pneumatic braking system.
试验结果表明，采用基于PWM技术的电空比例阀具有较好的性能，能够满足电空制动系统的要求。
With a example of electro-hydraulic proportional pressure valve, a electro-hydraulic proportional valve test system with integrated test and control technology was introduced.
本文以电液比例压力阀为例，介绍了采用测控一体化技术的比例阀试验系统。
Aiming at the problems such as time-variable parameters, nonlinear dead zone of the valve existing in the electro-hydraulic position servo control system, a self-tuning fuzzy controller is designed.
针对电液位置伺服系统中存在参数的时变性、死区非线性等问题，设计了自调整模糊控制器。
Hydraulic system adopts cartridge valve system with the features of act reliability, electro-hydraulic quick response and long usage life, as well as independent electronic system and PLC control.
液压系统采用插装阀集成系统，动作可靠，电液响应快，使用寿命长。
They may be fitted with signal feedback device and electro pneumatic valve positioner.
可选配反馈信号装置及电气阀门定位器。
Including electro valve, burner and micro switch ignition strand.
配置有电磁阀，燃烧器及精密开关引燃线。
This paper presents a new type of Electronic Servo valve (ESV) which includes the pulse width modulator, electro-mechanical actuator and variable section area valves.
本文介绍了一种新型的电子伺服活门。它由脉冲调制器和机电作动器以及变截面活门组成。
This paper presents a new type of Electronic Servo valve (ESV) which includes the pulse width modulator, electro-mechanical actuator and variable section area valves.
本文介绍了一种新型的电子伺服活门。它由脉冲调制器和机电作动器以及变截面活门组成。
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