查询词典 time-base control

In this paper,a detailed analysis of the causes of the breakages is carried out. The discussion is mainly focused on the stability and strength of subgrade, the selection and construction of base course materials, the quality control of pavement concrete,the control of the mixture ratio of the concrete materials and the technological control in the process of construction.

文章着重从路基的稳定和强度、基层结构材料的选择和施工控制、路面混凝土的材料质量控制、施工中的混凝土配合比控制和施工工艺控制等角度对路面破损产生的原因加以分析。

The main study as following: method of target capture and target parameter analysis for launching on the march, formulas of firing data correction for launch on moving base, an advanced scheme ,based on fuzzy control and PID control,is raised to guarantee accuracy of shoot electromechanical control on march automatically.

同时，列出了实现行进中发射所需解决的诸多技术问题，并对行进中射击理想射击诸元的确定和射击诸元补偿问题的理论和工程实践问题进行研究和论述。

It realized the PLC controlling over the autocontrol process of tank car cap seal head press on that base. It gave control program according to the control process, which carried out through the PLC of Q series, having verified the advantage of PLC′s control application in industry.

在此基础上，针对罐车封头压机自动控制过程进行了PLC控制的实现，针对控制过程给出了控制程序，并在Q系列PLC上进行了实现，验证了PLC在工业控制上的先进性。

To solve the above problems, a novel resonance injection type hybrid active power filter is presented, it allows the energy exchange between the DC-side capacitor and grid, DC-side voltage will be stabilized after the proposed control method base on the regulation of reactive current is adapted. On the other hand, a new current control method is proposed which is based on the control of error between injection current and harmonic current compensated by passive power filter using recursive PI.

在此基础上结合提出的基于基波无功电流闭环调节的直流侧电压控制方法，保证了直流侧电压的稳定；提出了采用递推积分将无源滤波器作用后电网谐波电流与注入支路补偿电流进行闭环比较控制以获得参考电流的方法，减小了误差，提高了系统的控制精度。

At First, the thesis researches the dynamic characteristic of servo valve, model of dynamical outfit about valve control unsymmetrical hydraulic ram, influence of the additional disturbing force and the systematic static error, on the base of analysis of fatigue testing machine system. Then the mathematical models of position control system and force control system are built. According to the principle of load-matching, the hydraulic dynamical outfit and power source system are designed and components are chosen. Then the correlative parameters of system model are calculated and the simulation study is carried out.

研究了伺服阀的动态特性、阀控非对称液压缸系统的动力机构模型、附加干扰力的影响以及系统静差，继而建立了位置控制系统和力控制系统的数学模型，并在此基础上计算系统相关参数，对系统进行了仿真研究，进一步分析了系统的稳定性和可控性。

In order to prove the reliability, test studies have been primarily carried out in the indoor soil bin. The data of the vehicle driving state parameters under the same or different terrain are analyzed. The process curves are compared by different control schemes. The theoretical model of the optimum driving state is reliable and fuzzy control scheme is feasible. The disturbances and unknown factors of control system are analyzed. Test results prove that the half-tracked air-cushion vehicle can drive steadily under control of the computer. At the same time the sensors used to measure soil mechanics characteristics on line need to be developed. And it is the important problem to be solved in the future study. The necessary regulation and correction are put up. So the studies in this paper provide some instruction for the further research work.

为了验证本文提出的最佳工作状态及最佳垫压理论，并分析控制系统的可靠性和稳定性，本文在半履带式气垫车的模型车上，在室内土槽中进行了初步的实车性能和理论验证试验，考察了在同种和不同土壤条件下气垫车的行驶状态参数的测量数据，比较了采用不同控制方法下的过程曲线，验证了最佳工作状态的理论模型和模糊控制系统方案的可行性与可靠性，从而保证了采用自整定模糊PID控制器能够使半履带式气垫车在稳定行驶最佳工作状态下；同时通过试验研究，分析了系统中各干扰与未知因素，对控制方案进行了相应的调整和修正，为今后进一步的研究工作提供了一定的指导。

On the basis of the above results of detecting methods, the instruction signal calculating circuit is designed according to i〓, i〓 calculating mode. Compensation current generating circuit is also designed and implemented. Its current following circuit is designed according to the instantaneous value comparing mode that used constant time control. The source current detection based control mode and composite control mode and their implementation are firstly introduced in our country. The method and the principle of dc side capacitor voltage control are explained clearly.

根据检测方法的研究成果，采用i〓、i〓运算方式构成并联型电力有源滤波器的指令电流运算电路；对补偿电流发生电路进行了电路设计和实施，其中电流跟踪控制电路采用电流跟随性能好、可靠性高的定时控制瞬时值比较方式；在国内首次研究并实施检测电源电流控制方式和复合控制方式；清楚地阐明了并联型电力有源滤波器直流侧电压控制的原理和方法，并在装置中实施。

A PID control method based on BP neural network was proposed,concerning the multi-layered temperature control of calenderer rollers and the limitations of the conventional PID control which resulted from the control of the nonlinear and time-varying system.The system design and software development were also presented.

针对压延机辊筒多段温度控制以及常规PID控制在非线性的、时变系统中控制效果的局限性，提出了一种基于BP神经网络整定的PID控制方法，给出了计算机控制系统设计，建立了比例、积分和微分三种参数自学习的PID控制器。

The third it adopts a chip control to replace original electricity control form raising control accuracy and reduce the reaction to time and reduce covering space etc. And visual number control procedure code and emulation to process which can discover the error of procedure in advance.

第三，采用芯片控制代替原有的电气控制形式，达到提高控制精度、减小响应时间和减小占地空间等目的，并且可视化的数控代码编程和模仿加工过程，可以提前发现程序的纰漏。

The author proposes some recommendations for bringing the primary frequency control into full play and reducing its effect on stability of coordinate control system at the same time, and also proposes a method introducing DEH primary frequency control factor into coordinate control system.

介绍了一次调频数的设置方法及对协调控制系统稳定性的影响，并且对如何在发挥一次调频作用的同时减少对协调控制系统稳定性的影响提出了建议，提出了将DEH一次调频因子引入协调控制系统的方法。

Now she was hungry and angry.She began to smoulder.

现在她又饿又气，她开始流露难以抑制的怒火。

You have placed our iniquities before You, Our secret sins in the light of Your presence.

诗90：8 你将我们的罪孽摆在你面前、将我们的隐恶摆在你面光之中。