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closed loop structure
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  闭环结构
     Emphases are placed on open loop S/H amplifiers, high accuracy S/H amplifiers with closed loop structure ( bipolar ), total difference high-speed track/hold amplifiers (BiCMOS) and very high-speed S/H amplifiers (GaAs).
     重点介绍开环结构的采样/保持放大器、闭环结构的高精度采样/保持放大器(双极)、全差分高速跟踪/保持放大器(BiCMOS)和超高速采样/保持放大器(GaAs)的设计。
短句来源
     Closed loop structure is adopted in this control system, the current and voltage of welding is used as feedback quantity.
     该控制系统采用闭环结构,焊接电流、电弧电压为反馈量。
短句来源
     This method can improve the accuracy of deflection control and stability of tracking measurement. To improve the position control accuracy of copying system, the closed loop structure of position control based on PID controller is designed; the PID parameters are optimized through genetic algorithm;
     为了提高仿形系统的位置控制精度,设计了基于PID控制器的位置控制闭环结构,采用遗传算法对PID参数进行了优化,运用Matlab仿真程序获得了理想的PID优化参数。
短句来源
     The motion analysis of mechanism based on closed loop structure is conducted.
     以闭环结构为基础,对机构进行了运动分析。
短句来源
  “closed loop structure”译为未确定词的双语例句
     After that, a configuration model which has closed loop structure is given containing design, drive and monitoring portions.
     在分析组态过程特征的基础上,明确了组态模型设计的目的和原则,提出了包含组态设计、组态驱动和组态监听三个阶段的闭环组态模型。
短句来源
     The control scheme consist of two layer position feedback covering nonlinear hawser drive system can supply a gap of half closed loop structure with only encoder feedback so can improve stability and robustness of control system.
     这种两层位置反馈控制可弥补只有码盘反馈的半闭环控制结构的不足 ,使具有强非线性的钢缆传动系统包含在闭环内 ,从而提高系统的稳定性和鲁棒性。
短句来源
     Due to its closed loop structure, the capabilities of 2D pneumatic digital valve, such as its stability, rapidness, precision and rigidity restrict each other. Effects on the above mentioned performance indexes caused by changes of the structure parameters are neither linear nor identically progressive or degressive.
     由于这种2D气动数字阀是一种闭环机构的结构设计,所以其稳性、快速性及精度、刚度等性能指标是相互制约的,改变2D气动数字阀结构参数对上述各性能指标的影响是非线性、非单调递增或递减的。
短句来源
     One is for the dynamics of the mechanism for a reference body with rotation, and the other is for the dynamics of a system with closed loop structure.
     最后给出了两个分别是参考体具有转动及非树机构动力学分析算例。
短句来源
     This paper introduces a kind of economical lathe CNC system which is controlled by a 8098 sngle chip controller based on a half closed loop structure, gives out the controlling tactics of overcoming the pulse losing, main module of system software for lathe reforming.
     该系统以8098作为控制器,由光电编码器对实际的进给脉冲计数进行反馈补偿,实现半闭环控制。 另外还给出了系统软件的主要模块,包括程序编辑、键盘分析显示、自动换刀等模块。
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  相似匹配句对
     Retractable Structure Based on Closed-Loop Linkages
     基于环形连杆机构原理的开合结构
短句来源
     The Progress of Studies on Structure of the Closed-loop Supply Chain
     闭环供应链结构问题研究进展
短句来源
     Design of retractable structure based on closed-loop linkages
     基于环形连杆机构原理的可展结构设计
短句来源
     In addition, a closed-loop control algorithm and structure were presented.
     同时提出了系统的闭环控制策略与控制结构。
短句来源
     The motion analysis of mechanism based on closed loop structure is conducted.
     以闭环结构为基础,对机构进行了运动分析。
短句来源
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  closed loop structure
The frequency can be directly regulated without the need for a closed loop structure.
      
The closed-loop structure of the controller has also to satisfy this assumption.
      
This means that for small loops it is not at all important that the loop be circular, but it can be any closed loop structure.
      
Schematic representation of the closed loop structure of IMS operation is illustrated in Figure 1.
      
In the closed-loop structure the strategies are based on all available past information on the state of the system and actions of the players.
      
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Predictive control algorithm is a new type of computer control algorithm developed since the middle of 70's. It is characterized by its easily modelling, simple on-line computation and comprehensively good control, quality.Based on the step response of a linear plant, this paper proposes a new method of designing digital controllers in predictive space. The theoretical background of the predictive control algorithm is explained. The closed-loop structure, the setting procedure for design parameters...

Predictive control algorithm is a new type of computer control algorithm developed since the middle of 70's. It is characterized by its easily modelling, simple on-line computation and comprehensively good control, quality.Based on the step response of a linear plant, this paper proposes a new method of designing digital controllers in predictive space. The theoretical background of the predictive control algorithm is explained. The closed-loop structure, the setting procedure for design parameters and the implementation of the new algorithm are discussed. Finally, the performance of the new method is demonstrated by some examples with computer simulation and experiment.

预测控制算法是70年代中期发展起来的一类新型计算机控制算法。本文从线性对象的阶跃响应出发,导出了在预测空间设计数字控制器的新方法,阐明了预测控制的理论背景,并讨论了控制回路的结构、参数整定及算法实现。最后以仿真及实验的例子说明了这一方法的有效性。

A research in DNA difference of variousstrains of lepospires by means of the restric-tion endonucleaes analysis and EMSMDAPFis reported for the first time in this paper.The DNA of 5 strains of leptospires, strain017 of serovar. Lai of serogroup L.interro-gans, strain patoc Ⅰ of L. biflexa, etc.,were digested by EcoR Ⅰ, Hind Ⅲ,Bgl Ⅱ, Hha Ⅰ and BamH Ⅰ restriction en-donuclease, and a horizontal electrophoresisof agarose was carried out. After that, thefragments of DNA in which the differencewas found were retrieved...

A research in DNA difference of variousstrains of lepospires by means of the restric-tion endonucleaes analysis and EMSMDAPFis reported for the first time in this paper.The DNA of 5 strains of leptospires, strain017 of serovar. Lai of serogroup L.interro-gans, strain patoc Ⅰ of L. biflexa, etc.,were digested by EcoR Ⅰ, Hind Ⅲ,Bgl Ⅱ, Hha Ⅰ and BamH Ⅰ restriction en-donuclease, and a horizontal electrophoresisof agarose was carried out. After that, thefragments of DNA in which the differencewas found were retrieved and EMSMDAPFwas conducted. A remarkable difference was found inDNA of various groups, sero-types of lepto- spires in the restriction endonuclease patternand a gentle difference of one or twobands, however, was observed in strain 017and 601 only. On the EM, multipledegreebranching structure of DNA in L.biflexaPatoc Ⅰ and Leptonema illini strain 3055,single-degree branching structure in L.heb-domadis strain 245 and straight stem orsuper-helical structure in strains 017 and 601of L.interrogans were found.In the differ-ence between strains 017 and 601 the closed-loop structure was observed in the former. It is suggested that the difference in themolecular composition and structure of DNAin various strains of leptospires is beneficialto the taxonomy and identification in lepto-spires, and is likely to be related with thevirulence of leptospires to a certain extent.

作者首次用限制性内切酶分析,结合硷性蛋白膜展层电镜技术对几株不同属、群、型、株的钩端螺旋体DNA 进行了研究。结果发现:不同钩体的DNA内切酶谱在高分子区域存在区别,在电镜下呈现不同形态。作者认为,这种差别有利于钩体的分类、鉴定。

In this paper, a general purpose computer program SNERM based on the Subsystem Newton-Euler Recursive Method for both the kinematics and dynamics of multibody systems, is introduced. The SNERM program is constructed by a main module for dealing with the dynamics of the manipulator chain structure and a series of subprogram modules for dealing with the dynamics of complicated systems with joints of multidegrees of freedom, with kinematic excitations, with reference body motions and with complicated topological...

In this paper, a general purpose computer program SNERM based on the Subsystem Newton-Euler Recursive Method for both the kinematics and dynamics of multibody systems, is introduced. The SNERM program is constructed by a main module for dealing with the dynamics of the manipulator chain structure and a series of subprogram modules for dealing with the dynamics of complicated systems with joints of multidegrees of freedom, with kinematic excitations, with reference body motions and with complicated topological structure.A Singular Value Decomposition (SVD) subprogram module is enclosed, so the SVD reductive method for the dynamics of constrained multibody systems can be applied and the Kinematics of the system with redundancy can be solved. The SNERM program, which is efficient and suitable for engineerirg applications, has a series of recursive and formulized formatting computations. It can be expansively applied in the kinematics and dynamics of general multibody systems, such as the spacecraft, the robots, the vehicles and the mechanisms etc. The characteristics of the Subsystem Newton-Euler Recursive Method is introduced briefly and a series of recursive and formulized formatting equations are presented. Two numerical examples are introduced. One is for the dynamics of the mechanism for a reference body with rotation, and the other is for the dynamics of a system with closed loop structure. It is shown that the SNERM program has good expansibility and accuracy and may be widely used.

本文介绍基于子系统牛顿欧拉递推法编制的可进行多体系统运动学、动力学分析的通用程序SNERM,该程序以解机器人链系统为主程序块,通过增加各子程序块从而可处理系统中含有多自由度铰、含有运动激励、参考体具有一般运动、具有复杂的拓朴结构的复杂多体系统的动力学问题。并包含奇异值分解(SVD)子程序块,故可用SVD缩并法解约束多体系统动力学及解具有冗自由度系统运动学问题,并采用递推及程式化计算公式,适合工程应用及具有较高的计算效率,可广泛应用于航天器、机器人、车辆、机构等多体系统运动学动力学分析。文中对子系统牛顿欧拉递推法的特点作了简述,并对递推及程式化计算公式作了归纳。最后给出了两个分别是参考体具有转动及非树机构动力学分析算例。说明该程序应用方便,工程实用,可扩展性好,通用性强且计算正确。

 
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