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。
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 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 principle of forging hydraulic press by pump direct drive is introduced in this paper, the math model, control method and strategy are also described.
介绍泵直接传动的锻造液压机工作原理，对其控制机理、数学模型、控制策略进行了研究，并成功地应用于生产实践中。
The installation of position transducer in hydraulic AGC cylinder has direct effect on the resolution, accuracy control, response time and maintenance of the hydraulic AGC system.
位移传感器的安装结构是否合理，直接影响轧机液压辊缝控制系统的分辨率、控制精度、响应时间和维护。
The scheme of DDC (Direct Digital Control) designed in gate controlling so as to realize digital control is put forward to keep up with the calling of hydraulic automation.
将直接数字控制器应用于闸门控制，实现闸门开度的数字化控制是顺应水利自动化的号召提出的。
Direct control of electro hydraulic digital direction & flow valve by means of PLC can make the control system of hyd. system become simpler, cheaper and reliabler.
采用可煽程控制器（PLC）直接控制电液数字方向流量阀，可使液压系统的控制系统简洁、可靠、成本显著下降。
Direct control of electro hydraulic digital direction & flow valve by means of PLC can make the control system of hyd. system become simpler, cheaper and reliabler.
采用可煽程控制器（PLC）直接控制电液数字方向流量阀，可使液压系统的控制系统简洁、可靠、成本显著下降。
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