开环控制系统

针对目前以步进电机驱动的经济型CNC车床开环控制系统存在的主要问题，提出了一种新型的步进电机闭环控制系统。

In view of the present major problems of the open-loop control system for economic CNC lathe with stepping motor as feed motor , a newtype of closed-loop control system for stepping motor has been presented in the paper .

本文主要是将传统的CA6140车床的电气控制系统改造成为数字控制的开环控制系统。

This paper mainly is that the traditional CA6140 lathe electricity control system is Reformed the numerical control the open-loop control system .

对应用CNC技术精确设定开环控制系统的机械原点，提高传动精度及专用机床加工柔性化的方法进行了研究。

The method for precise location of original point of machinery in open control , enhancement of transmission accuracy and flexibility of special machine are researched .

根据课题的需要，制作了TIG焊快速制造焊接参数开环控制系统。

According to the demand of TIG welding Rapid Prototyping metal fabric experiments , The TIG weld parameters open loop control system is executed .

东南大学机械系现有的转子实验台ZT-3是一个手动调节调压器来控制直流电动机转速的开环控制系统，配以相关设施可以完成学生测控、振动方面的实验。

ZT-3 rotor test bed in Department of Mechanical Engineering in Southeast University is a DC motor centered open-loop control system , which speed is controlled by regulating the regulator manually .

该系统为一开环控制系统。

The crane overload protection system is a open-loop control system .

这是一种简单、实用的开环控制系统。

This is a simple and usable open loop control system .

在开环控制系统中，负载失调角对应于一定的失动量。

In the system of open-loop control , load angular displacement corresponds for certain missing momentum .

仿真氧气生命指示器采用步进电机驱动和光电开关定位开环控制系统，在设计和实现中成功地解决了指示器盘面刻度非均匀的问题，并解决了光电开关确定零位问题和限位问题。

The oxygen life indictor is an open-loop system made up of the step motor with a photoelectric switch .

结果表明，该步进电机控制器具有控制灵活，安全可靠，抗干扰性能好等优点，也能应用于机器人等其它步进电机实现开环控制系统要求灵活性且精度较高的场合。

It proves that the controller is flexible reliable and easy to use , and can be used in other open-loop and accurate step motor control system .

将其抽象为控制系统模型，则体现为从控制精度较低的开环控制系统向控制精度较高的闭环控制系统转化。

It can be abstracted into a control system model . This model changes from an open-loop control system with lower accuracy to a close-loop control system with higher accuracy .

本文完成了基于迟滞数学模型的开环控制系统的设计研究，包括迟滞数学模型参数的识别，逆模型的求取。

A scanning system under open loop operation based on the mathematical model is studied and designed , including the identification of hysteresis model parameters and obtaining of the inverse model .

通过对各种燃油喷射控制策略进行比较分析，确定了试验用燃油喷射系统控制方案：采用开环控制系统，进行进气道喷射，用速度-密度法测量循环进气量。

By comparing and contrasting various fuel injection control approaches , the project adopted open loop control system with port fuel injection and used the speed density method to measure intake air mass .

但现有的上肢康复系统大多采用开环控制系统结构，较少考虑到患者的主动运动意识和反馈信号。

But , the current rehabilitation systems are driven by the motor , and have an open-loop control structure . The active movement consciousness of the patients and the feedback signal during the therapy are not usually been considered .

采用电液比例溢流阀作吊机系统压力控制元件，与线性线绕式电位器和凸轮构成的角位移传感器一起组成吊机过载保护开环控制系统。

In combination with a linear wire wound potentiometer and a cam-actuated angle displacement sensor , a hydro-electric proportional relief valve is used as pressure controlling element of hoist system to compose an open loop control system for overload protection .

直接由并行口输出6个互差60°的双窄脉冲，利用8098单片机内部A／D直接采样移相控制信号，从而构成了一个仅有一片8098单片机的开环控制系统。

The six pulses of difference of 60 ° each other are produced at the parallel interface . The moving phase control signal is sampled by using an internal A / D in the 8098 , the open loop control system is formed .

本文首先讨论磁链开环控制系统中的走向偏差，然后分析复合矢量控制系统如何通过校正来消除定向偏差，达到正确的磁场走向控制。

In this article the orientation deviation in open-loop control system for magnetic flux is first discussed , then the eliminating of the orientation deviation in compound vector control system is analysed , in which correct orientation control of magnetic field is obtained through correction .

利用新型Lyapunov函数，给出基于连续T-S模型的开环模糊控制系统新的稳定性判别条件，最后结合LMI理论利用具体实例验证算法的有效性。

Using a new Lyapunov function , a new stability criterion for open-loop fuzzy control system based on continuous T-S model is proposed .

开环人口控制系统的稳定性及其渐近性态

On the Stability and Asymptotic Behaviour for Open Population Control System

单片机开环流量控制系统

The Single Chip Commputer-Based Open Loop Flow Control System

液压锤开环程序控制系统

The Open-Loop Programme Control System for Hydraulic Hammers

目前在这些系统中，调速型液力偶合器多为开环控制，系统运行过程中的动态特性及传动品质不是很好，从而影响了整个系统的调速及节能效果。

However , most of the hydraulic couplings are of open-loop control mode at present , the dynamic property and transmission quality is not satisfying .

设计了一套全硬件电路实现了横向磁场永磁直线电机的开环控制，使系统具有较高的可靠性。

A circuit wholly with hardware is designed and the open loop control has been put into practice .

本文的主要内容和取得的主要成果如下：（1）以张力产生的机理及传动系统的原理为出发点，开发了一套基于最大恒转矩法张力开环设定的控制系统。

The main work and results are as follows : ( 1 ) Based on the principle of tension and drive control system , the maximum invariable torque open loop tension set algorithm is developed .

并条机开环自调匀整控制系统中实时延时控制算法研究

Study on Real-Time Algorithm of Delay Control in Open-Loop Autoleveller System of Drawing Machine

对于开环控制的太阳能跟踪系统，太阳位置的计算精度尤为重要。

For an open loop controlled sun-tracking system , the computation accuracy of solar position is especially important .

矢量控制技术可以分为磁链开环的间接矢量控制系统和磁链闭环的直接矢量控制系统。

The vector control technology can be divided into indirect vector control system with open-loop flux and direct vector control with closed loop flux .

分析了速度开环控制方式下的系统稳定工作点及极限机械特性的决定因素。

The stability working point and the decisive factor of the limit of the mechanical properties with the speed open loop control were analyzed .

目前，国内现有的高速走丝线切割控制系统是开环的，即控制系统对输出给步进电机的信号没有反馈，这样的结构对于加工过程是不安全的。

The high-speed wire electro-discharge machine in prior art employs the open-loop control system , and this means the output signals to the stepping motor can not be fed back .

利用开环控制来改变非线性系统的分岔参数，使之获得理想的平衡点分岔图。

The aim of this paper is to demonstrate the use of the open loop control to change the nonlinear system parameters in order to obtain a desired equilibrium bifurcation diagram .