This paper introduced the principle and realization method as well as control characterristics of the electrohydraulic servo proportional control system of the vrc robot . its nationality are also been discussed 介绍了vrc机器人电液伺服/比例控制系统的原理、实现方法与控制特点,为该技术国产化进行了理论探讨
The applications of the electro - hydro proportional control such as , proportional pressure regulation , proportional speed regulation , multi - cylinder synchronization etc have been introduced 摘要电液比例控制改变了传统液压机控制方式，提高了液压机各项性能。本文介绍了比例调压、比例调速、多缸同步等电液比例控制功能在液压机上的应用。
Expect for the design of the amplifier , the emphases is to test the static state and dynamic characteristic of the control system and provide a great deal reference data so that the system can work well 论文中除了对放大器的电路做了介绍外，重点是对放大器在比例控制系统的运行中做了大量的静态、动态参数测试，为比例电磁阀的良好工作提供了一系列的参考数据。
Details are as follows : the first chapter introduces the applied areas of the tension control , the main methods applied presently , the electro - hydraulic proportional control technology anr subjects of the thesis 论文内容如下：第一章绪论，概述了张力控制系统的应用领域；张力控制的几种主要方式；电液比例控制技术的简介；以及本文主要的研究内容和选题意义。
One reason is that poor of technical level , most civil manufacturers ’ products are based on the imported electro - hydraulic proportional controller which is act as the core , as a result , the cost become higher and lost the advantage of lower cost 在我国由于起步晚,技术水平低,汽车起重机生产厂商往往需要从国外引进电液比例控制系统核心控制器,以提升自身产品的竞争力。
The main work of the thesis is as follows : 1 . the feasibility of the scheme in engineering is discussed by means of analyzing the strategy of position control system . 2 . the mathematical model of the position control system is established and analyzed in theory 论文以研配压机位置控制系统的研究为题目，其主要工作如下： ?对1000kn双侧翻转研配压机进行了简介，对电液比例控制系统进行了分析。
Mr xeon say , director of refco forex limited explained : " traditionally , the foreign exchange market was somehow labeled as an over - the - counter product with limitations in a host of areas , specifically margin control , pricing spread execution , but most of all it was extremely cumbersome Refco forex limited董事徐瑞安解释：外汇市场传统地被标签为场外投资产品，加上杠杆比例控制买卖差价等交易环节的运作均极为烦琐。
The results of experiments have show that electro - hydraulic proportional control system and its core controller of the auto crane ’ s performance are satisfied . it has the advantage of easily using and low cost , then it is worthy of further developing 核心控制器样机的试验情况表明,本文所设计的汽车起重机电液比例控制系统具有简洁实用、成本低廉的优点,证明了本文研发成果的有效性和实用价值,为产品的产业化开发打下了良好的基础。
The electro - hydraulic proportional technology and the viewpoint of energy - saving are introduced into the design of all - hydraulic operated drilling machine in this article . this article offers some references for the design of all - hydraulic operated drilling machine with high level of automatization and high efficiency 本论文在全液压钻机的设计中引入电液比例控制技术和节能设计的观点，研究成果对于自动化、高效化全液压钻机的研发具有一定参考价值。
According actual situations , a system design pattern called “ double cpu share memory ” is adopted for such a kind of electro - hydraulic proportional controller . so in the third part , the concrete realization is presented to show the efficiency of the system design pattern , in the middle of which it emphatically give out the design of the hardware driving model 针对怎样实现汽车起重机电液比例控制系统核心控制器问题,即系统的设计问题,本文从整体上研究和比较了多种方案,最终选择了双处理器共享内存的体系结构模式,并且从硬件和软件上完成了核心控制器的详细设计。
