查询词典 process control

Fuzzy logic control, as a newly automatic control strategy, has been applied in industrial occasion, has insensitiveness and fast response to controlled process.

由于静压储能传动系统工作时系统结构和系数都随着负载工况的变化而变化，采用常规的基于被控对象精确数学模型的控制策略不易或不能有效地完成对被控对象的调节。

Basing on analyzing the work principle of the current control methods, it can be given the detailed derivation process basing on the grid and inverter pulse width modulation algorithm and the duty cycle of the instantaneous current control.

在分析了电流控制方法工作原理的基础上，给出了基于瞬时电流控制的并网逆变器的脉宽调制算法和占空比的详细推导过程。

A standard control chart based on probability integral transform theory is given, which can be used to control process mean and variance efficiently in the low volume manufacturing.

用概率积分变换理论，给出了控制过程均值、过程方差的标准化控制图，适用于小批量生产环境下对过程均值、过程方差的有效控制。

Aiming at the problems existing in production process of intermittent stills,e.g.,poor level in automation,intensive labor of workers,control accuracy,and insufficient production efficiency,an intelligent automatic control system based on Siemens PCS7 is proposed.

针对间歇反应釜生产过程中存在的自动化控制水平相对落后、工人劳动强度大、控制精度低、主产率不理想等问题，提出了基于西门子PCS7的智能化自动控制系统。

Detection means of the feeding coal are analyzed in the jigging process,and puts forward a fuzzy control system of the variable construction in order to control the feeding coal .

分析了跳汰过程给料量的检测方法，建立了一个变结构的模糊控制系统用以跳汰过程给料量的控制，系统由3部分组成：Bang-Bang控制、保持控制和模糊控制。

L Setting and control function of PC: data process software kit and intelligent control can achieve PC monitor.

l 计算机设置、控制功能：配套数据处理软件，智能化控制，实现计算机监控。

The control principle of electrostatic shaping was introduced according to the balance between electrostatic force and resulting force formed by membrane deformation and the complex shaping process of SMEC. Then, taking the trisection circularity electrode for an example, the distribution characteristic of electric potential in the electrostatic field was analyzed, namely, the expression of potential function in the electrostatic field was deduced by Laplacian equation. And then, by combining the difference equation with electric potential expression, the numerical solutions of electrostatic force in single electrode mode and trisection circularity electrode mode were disposed. Finally, the calculated figure was compared with the ideal paraboloid and comparison shows that more accuracy would be achieved by multi-electrode control.

根据静电力与薄膜变形载荷作用力之间的平衡关系和静电拉伸薄膜反射镜成形的复杂过程，介绍了薄膜反射镜静电成形的控制原理；以三等分环状电极为例，分析了静电场中空间电势分布特性，即从拉普拉斯方程推导出静态场势函数的表达式；然后，利用差分与电势方程结合的方法，对单电极电场力和三等分环状电极电场力进行了数值求解；最后，将计算面形与理想抛物面进行了比较，结果显示，单电极情况下得到的薄膜反射镜面形不是理想抛物面，若采用多电极控制可获得更高的控制精度。

This paper introduced the design process of the control system hardware circuit of numerical control thred lather in detail.

本文详细地介绍了数控螺纹车床控制系统硬件电路的设计过程。

The principle and technological process of how to change the contactor control on mixed feed production line into programmable logic control system are introduced in this article. The effects and advantages of PLC system on feed processing are also discussed; at the same time the problems that should be paid attention to on actual practice are mentioned too.

介绍了将配合饲料生产线的有触点控制改造成PLC可编程逻辑控制系统的原理、工艺流程；阐述了PLC可编程逻辑控制系统在饲料生产中的作用与优势，并说明了在实际应用中应注意的问题；分析了影响其产品质量的因素；确定了其初始参数。

In this paper, we discuss the learning control for nonlinear discrete system with delay. It is not necessary to use the desired input corresponding to the desired output and the desired state corresponding to the system in our learning algorithm and in the process of learning control. Therefore, our method needs less dynamics information of the controlled object than previous ones and only the qualitative Lipschitz condition is required.

摘 要：讨论了滞后非线性离散系统的学习控制问题，由于所给的学习算法及学习控制过程中，没有涉及和用到相应于理想输出yd的理想输入ud及对应于系统的理想状态xd，故对被控对象的动力学信息要求得很少，只是一种定性上的Lipschitz条件。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。