查询词典 valve control

When the control valve and valve positioner assembly combination, their positioning resolution How?

11当调节阀与阀门定位器装配组合后，它们的定位分辨率如何？

Including setting up system platform and measuring structure of the rigidity of pretension spring of the solenoid valve, designing the dynamic electric-current driver on the basis of power sink principal, variable pulse width modulation of voltage boosting and inversion technology, realizing the intelligence controlover the control parameters, satisfying the diversity requirement towards the dynamic feature experiment of the solenoid valve; furthermore, testing system software is developed, and filtering is conducted over the signals of armature displacement response and driving current educed from the experiment using wavelet analysis technology.

构建了系统台架和电磁阀预紧弹簧刚度测量机构，设计了基于功率吸收原理和可变脉宽升压逆变技术的电磁阀动态电流驱动器，实现了对驱动器参数的智能控制，满足了对电磁阀动态特性试验的多样性要求。开发了测试系统软件，提出了基于小波分析的方法，对试验所得衔铁位移响应信号和驱动电流信号进行了滤波。

This paper introduces the development and principle, and present study situation of electrohydraulic proportional control system, and the work principle and every component of electrohydraulic proportional valve-controlled motor system of test platform are analyzed in detail, establishing the mathematics model of the valve-controlled motor system.

本文介绍了电液比例控制系统的发展、原理及目前的研究现状，对试验台的电液比例阀控马达速度控制系统的工作原理及各组成部件进行了详细的分析介绍，建立了阀控马达速度控制系统的数学模型。

In the system of the proportional technique of the electric-hydraulics, the proportional valve is an impossible component in the system of the proportional control, and the performance of the electric-machine conversion-component will affect the performance of the entire valve. So, the conversion-component used in the electric-machine plays an important role in the wholly system.

在电液比例控制系统中，比例阀是构成比例控制系统不可缺少的元件，而电—机转换元件的性能又会影响整个阀的性能，因此电—机转换元件的性能对整个系统的性能起着至关重要的作用。

Rotary control valves used in the main ball valve, butterfly valve REDUCING VALVES and so on.

应用于角行程控制的阀门主要有球阀、蝶阀等。

The deadband mechanism of the pneumatic proportional valve and its adverse effects on the system control performance are analyzed. A new compensation method for reducing the friction of the valve is presented.

针对气动比例阀的死区产生机理及对系统控制性能造成的不良影响，提出了1种新的对比例阀的死区进行补偿方法。

This command opens the isolation valve MULTI-FUNCTIONAL WATER PUMP CONTROL VALVE that ordinarily is shut and keeps hydraulic (or, in some engine types, pneumatic) pressure away from the thrust reverser controls.

此命令将打开隔离阀通常是关闭，保持液压（或在某些类型的发动机，气动）远离压力反推控制。

Seal ring: rotary control valve corresponding to valve seat ring through that part.

密封环：旋转式控制阀的对应于直通阀阀座环的那个零件。

8 Self-balancing valve Also called the Flow Control Valve.

1.8 自力式平衡阀也叫流量控制阀。

As a process controller, and the valve with pneumatic actuator composed of intelligent Self-priming centrifugal oil pumps control valve.

作为过程控制器，与带气动执行机构的阀门组成智能型调节阀。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。