In dealing with the relationship of the servo valve position control and the adaptive control, the Double-loop control is adopted.
提出了伺服阀的位置控制和颤振的控制关系上采用可切换的双通道控制形式的设计思想。
At first, it studied the plant model of position and force system about valve control unsymmetrical hydraulic ram.
首先，建立了阀控非对称缸位置控制系统与力控制系统的数学模型。
This paper introduces the hardware design and the position control method of a valve positioner based on ARM microcontroller.
介绍了一种基于ARM的智能阀门定位系统的硬件设计和定位控制方法。
Stroke control mechanism for the regulation and precise control of valve opening and closing position.
行程控制机构，用以调节和准确控制阀门的启闭位置。
The paper mainly focus on the experimental research on pneumatic on-off valve motor position servo control system with PCM control method and self-adjusting PID algorithm.
文章主要研究的内容为利用PCM控制技术，采用自适应PID控制算法，对开关阀式气动马达位置伺服系统进行实验研究。
This text introduces the operation principle, valve position, velocity control, and the solution for key problems of velocity valve's control system for vertical semi-continuous casting machine.
本文介绍了立式半连续铸造机速度阀控制系统的工作原理、阀位、速度控制方式和各种关键问题的解决方法。
A new developed electrical control VVT system is presented which USES a tensioner with variable working position to change the intake valve-closing Angle.
本文介绍了一种基于可变位置液压张紧器机构实现控制进气门关闭相位角的电控可变配气相位系统。
In Electric actuators, the primary limit switches are used to control the open and closed position of the valve.
在电动执行器里，主要限位开关用来控制阀门的开启和关闭位置。
The electric flow control valve provides continuously variable flow control. Embedded in the valve is an absolute position sensor that sends real-time feedback about the choke's exact position.
电动控制的流量控制阀可实现流量的连续控制，嵌在阀中的一个发射节流器能够精确定位并实时反馈发生堵塞位置的信息。
Design of a fuzzy controller, to achieve a precise control of the hydraulic cylinder position by the high-speed on-off valve was based on PWM.
设计了一种模糊控制器，实现了PWM高速开关阀控液压缸位置系统的精确控制。
As the system responds to control, it can position the valve anywhere from closed to fully open.
在干蒸汽加湿系统对控制作出响应时，可以把调节执行器置于从关闭到全开的任何位置上。
The result of preliminary experiment shows that the control scheme can make valve run steadily and reliably, implement precise controlling of valve position.
初步实验结果表明：所提出的控制策略能够使阀门平稳、可靠的运行，实现了阀门位置的精确控制。
A pneumatic rotary actuator angular position servo system is studied, which adopts 3-port proportional flow valve as a control device.
该文对三通比例流量阀控制的摆动气缸转角位置伺服系统进行研究。
The hydraulic valve auxiliary control unit (12) keeps the exhaust valve (5) in a temporary opening position.
液压气门辅助控制单元（12）将排气气门（5）保持在暂时打开的 位置上。
The mechanical throttle valve is electrically controlled, e. g. the valve position is under closed-loop control to the output of the pressure gauge.
所述机械节流阀受到电控制，例如阀门位置受到根据所述压力表的输出进行的闭环控制。
A control valve, the valve position of which is controlled by the pressure on the slave cylinder side of the pump, is arranged parallel to the pump.
与该泵并联地设置有一个控制阀，该控制阀的阀位置通过该泵的主动缸侧的压力来控制。
The stability of steam turbine control system could be effected by the governing valve nonlinear position-flow characteristic.
调节阀特性非线性将影响机组的稳定运行，必须通过非线性补偿，使机组的静态特性线性化。
Said rotary control disk rotates around the central axle on upper valve body to exchange position with conic valve core, so allowing medium to flow.
上阀体上装有中轴，旋转控制盘绕中轴转动与上下滑动锥形阀芯换位，实现介质流量、流向控制。
In pneumatic position servo system with proportional directional control valve and control cylinder, the centre adjust emt voltage is one of the important factors that influence control precision.
在比例方向阀控缸气动位置伺服系统中，置中电压是影响控制精度的重要因素之一。
The tracking control technique of triple eccentric butterfly valve is introduced. The detection position and the effect of displacement sensor are discussed in this paper.
论述了三偏心蝶阀焊缝跟踪控制方法，分析了位移传感器的检测位置及其效果。
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。
The mounted location of high-pressure safty valve and the connecting position of the control air pipe of air pressure relay of JZ-7 brake system are analysed.
对重联机车中JZ 7型制动机系统的高压安全阀的安装位置及打风压力继电器（调压器）控制风管的连接位置进行了分析、讨论，指出了现有机车中设计、制造上存在的缺陷，并在实际运用中进行了改造。
Plate connected with electric control valve which had large drift diameter, have three -position valve function.
板式连接大通径电控换向阀，有三位阀功能。
The control end of the two-position five-way valve (8) is connected with a compressed air inlet pipe through a switch (11).
两位五通阀(8)的控制端通过开关(11)与压缩气进气管连接。
These control gate valves are available with 3-position pneumatic actuator, and with stepper motor for controlling and isolation. A valve in combination with an adaptive pressure controller.
此类控制阀配有三位气动传动器、步进马达，与自适性压力控制器配套使用。
These control gate valves are available with 3-position pneumatic actuator, and with stepper motor for controlling and isolation. A valve in combination with an adaptive pressure controller.
此类控制阀配有三位气动传动器、步进马达，与自适性压力控制器配套使用。
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