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。
It has the higher switching speed and frequency and can be used as the pilot valve for a larger flow rate valve, or as a direct control valve for small flow rate hydraulic loop.
该阀具有很高的切换速度和频率，可以用来作为大流量高速开关阀的先导控制阀，也可以在小流量回路中直接作为控制阀使用。
The close-loop system has obtained satisfactory control results in the experiment using a hydraulic mock circulatory system for the artifitial heart.
控制系统的性能在循环系统水力学模拟台上做了试验，取得了满意的效果。
This paper study and design its hydraulic power control system and introduces the tool's automatic down hole closed loop of control principle and ways.
对工具内部的液压控制原理及控制回路进行了研究和设计；
Based on the continuous casting device in the laboratory of our school, the theory of robust control is applied to position loop system driven by hydraulic servo.
本课题针对我校实验室结晶器连铸装置，将鲁棒控制理论应用于液压驱动伺服位置环系统的研究开发。
The platform with digital cylinder avoids lots of hydraulic servo parameter adjusting devices and A/D, D/A data conversion devices. Therefore it can be regarded as an open loop control for developers.
该平台采用新型数字液压缸，其控制不需外部A/D、D/A转换，同时减少了大量的液压伺服参数调节装置，对控制者来说完全是一种开环控制。
This paper deals with a closed-loop digital control for a hydraulic valve, controlled motor speed system.
研究了用位总线微机构成的液压阀控马达速度闭环数字控制系统。
In this paper, the structural characteristics, parameters calculation, performance analysis, open loop hydraulic system with integrated plug in valves and PLC control system are presented.
介绍了该新型程控液压模锻锤结构特点、参数计算、性能分析、插装阀集成开式液压系统和PLC程序控制系统。
Position closed-loop control was used to control the position of servo hydraulic cylinder to improve control accuracy.
在位置闭环控制中比例伺服阀控制伺服缸，解决了控制精度低的问题。
A dynamic simulation tool, SIMULINK software package in MATLAB, is taken as the development tool, and applied in the dynamic response computation of the hydraulic servo closed-loop control system.
以MATLAB中动态仿真工具SIMULINK软件包为开发工具，将其应用于该液压伺服闭环控制系统的动态响应计算中，针对上述两种闭环控制系统，给出了考虑干扰量情况下的SIMULINK仿真方法。
The hydraulic system of the same closed-loop control mode that has the characteristics of high accuracy;
液压系统使用闭环控制的等同方式的精度高；
The hydraulic system of the same closed-loop control mode that has the characteristics of high accuracy;
液压系统使用闭环控制的等同方式的精度高；
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