The design succeeds in realizing open-loop control of step-motor.
设计成功实现了步进电机的开环控制。
The instantaneous optimal closed-open-loop control equations are derived.
求出了瞬时开闭环最优化控制方程。
The precision of this mechanism is checked by open-loop control and closed-loop control.
采取开环控制和闭环控制两种方式检验了该机构的精度，并讨论了误差产生的原因。
A practical open-loop control system for the three-phase grid inverter was also developed in the work.
实际开发了一套针对三相并网逆变器的开环控制系统。
It is demonstrated that earthquake response of structure can be decreased by the method of fuzzy open-loop control.
模糊开环控制能有效地减小建筑结构的地震反应。
The results shows that the initial open-loop control can change velocity easily and PID adjustment can guarantee the po…
结果表明，改进后的系统能很好地满足现代热压工艺同时实现速度及位置控制的要求。
A major deficiency of piezoelectric actuators is that their open-loop control accuracy is seriously limited by hysteresis.
压电陶瓷存在迟滞现象，开环定位精度受到严重影响。
A control circuit comprises a voltage open-loop control circuit and a semi-periodic current hysteresis-loop control circuit.
控制电路包含电压开环控制电路，半周期电流滞环控制电路。
For the finite propulsion reentry guidance, the conventional closed-thruster equation based on open-loop control loses its way.
解决有限推力模型的再入飞行器初制导问题，利用传统开环控制的关机方程达不到要求的精度。
Based on the dual function S-rough set and system law generation, disturb recognition criteria of the open-loop control is given.
利用函数单向s -粗集对偶，结合系统规律生成，提出了开环控制系统的扰动识别准则，并给出了开环控制系统扰动识别的结构图和具体实现过程。
However, this advantage is more than outweighed by the disadvantages of open-loop control and the inherent advantages of feedback systems.
然而，这一优点比不上开环控制的缺点和反馈系统的固有优点。
In this paper, the new inverse dynamics method, which designs the open-loop control torque for one-link flexible manipulator, is proposed.
本文提出了一种在时域上设计柔性机械臂开环控制力矩的逆动力学方法。
The proposed method combined the open-loop control and the closed-loop control, resulting in extending the protect area of emergency control.
提出将开环控制与闭环控制两种方式相结合，扩大了紧急控制的保护范围。
There are three usual methods for excitation control following constant excitation current, constant power factor, and constant setting open-loop control.
常用的励磁控制方法主要有三种：恒励磁电流、恒功率因数、恒给定开环控制。
Stepper motor control can be used as a special motor, do not use their accumulated error (accuracy of 100%) the characteristics of a wide range of open-loop control.
步进电机可以作为一种控制用的特种电机，利用其没有积累误差(精度为100%)的特点，广泛应用于各种开环控制。
In static design, we choose important system elements and determine system control scheme, which provide good basis for the open-loop control and closed-loop control.
通过静态设计、系统元件的选型，静态特性的分析和控制方案的选择，为开环控制打下基础。
The friction drive mechanism moves well even when driven at high frequency and with long strokes, so it can be used with open-loop control systems for micro displacement.
进给速度可通过改变驱动脉冲的频率调节，机构在高频驱动大位移动作时亦表现出准确的步进特性，可用于小型机电系统的开环进给驱动。
The open-loop control method of computing control signal based on plant model at intervals of state signal through network is proposed for reducing the usage of the network.
提出了在网络传输信号的时间间隔内依据被控对象模型计算控制信号的开环控制方法，以减少对网络的使用。
In the design of the software part, this paper gives the software design of open-loop control with SPWM and the software design of voltage-current double closed-loop control.
在软件设计部分中，首先进行了开环系统软件设计和电压电流双闭环控制系统软件设计。
The control of ignition advance Angle is mostly open-loop control and the control data is obtained from experiment. Close-loop control method is applied to avoid engine knock.
对点火提前角的控制主要是开环控制，控制数据由试验得到，对爆震现象采取了闭环控制。
Finally, relative experiments of 3-phase ac motor SVPWM open-loop control are achieved using this experiment platform, the testing result of system comes to the request designed.
最后，在该实验平台上实现了三相交流电动机SVPWM算法的开环控制实验，实验结果表明系统达到了设计要求。
The design using ATMEL89C51 single chip to control the step-motor with its controller, driving circuit and LED display circuit to realize step motor open-loop control were introduced.
通过ATMEL89C 51单片机对步进电机进行控制，主要介绍了步进电机控制器、驱动电路和LED显示电路的设计，实现了步进电机的开环控制。
At last, experiment of open loop and closed loop system are completed, which is in accord with the simulation result. It verified feasibility and advantage of the control scheme.
最后完成了系统的开环和闭环实验，取得了和仿真一致的结果，从而验证了控制方案的可行性和优越性。
A kind of the pulse control mode, the drive and motor closed loop, but not to the numerical control system, the feedback device, in a sense, can open loop control called the servo control.
一种采用脉冲控制方式，此种驱动器与电机闭环，但不反馈到数控系统，这种驱动器在某种程度上可称为开环控制的伺服控制。
The institution of all the humping speed control systems basically depends upon open loop control which restricts the character of speed regulating and random adaptability to the circumstances.
现行各种制式的驼峰速度控制系统，都基本属开环控制，限制了速度调整的品质和当外界因素变化时的随机适应能力。
The result indicates PID control method is available to the gasoline engine idle, which is more effective than open loop control, and gets practice verification in electrical control gasoline engine.
结果表明，怠速pid控制方法应用于车用汽油机怠速控制是可行的，而且比开环控制更加有效，并在目前电控汽油机上得到了实际验证。
The adopted control mode of previous common frequency converter is usually of open loop constant voltage ratio, which its control curve is not stable.
早期通用变频器大多为开环恒压比的控制方式，控制曲线不稳定。
This paper presents a parametric open plus closed loop control approach to controlling chaos in continuous dynamical systems.
针对可能呈现混沌性态的连续动力学，提出了一种参数开闭环控制方案。
This paper presents a parametric open plus closed loop control approach to controlling chaos in continuous dynamical systems.
针对可能呈现混沌性态的连续动力学，提出了一种参数开闭环控制方案。
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