自动控制系统

This paper mainly studies the technique of the width control of E2 edger mill which belongs to Panzhihua Iron and Steel Industry. It introduces the development of the technique. In addition, this paper describes the Automatic Width Control technique in detail, including the composing and the control principle of the AWC hydraulic system.

本文主要研究了攀钢E2轧机的自动宽度控制液压系统，介绍了宽度控制的发展概况，并详细论述了E2轧机宽度自动控制系统的组成及原理——针对轧制力变化引起立辊轧机有载辊缝波动而相应调节侧压位移量以补偿辊缝波动。

In the design of automatic control system for isomerization unit from heptane tower of PX devices, single-loop control is used in the control programme. There is a total of 11 circuit , of which is 8 single-loop control system and 3 cascade control system. It has done the choice and relevant calculation on the controller, control valves and measurement devices used in the control system. There is a total of eight chapters in this design.

在对PX装置异构化单元脱庚烷塔自动控制系统进行设计时，控制方案基本采用单回路控制，总共有11个设计回路，其中单回路控制系统8个，串级控制系统3个，并对控制系统所要用到的控制器，控制阀和测量元件等进行了选择且进行了相关的计算。

Industrial Automation: Automatic control equipment, industrial control machines, probing instruments, instruments and meters, DCS distribution control system, process automatic control system, automatic control system, remote control system, VVVF, PC bus industrial control machine, field bus products, numeric control and digital display equipment, power transmission equipment, electric drive an mechanical transmission devices, braking system, etc..

工业自动化：自动化控制设备、工控机、探测仪器、仪器仪表、衡量器件、传感器、转换器、变送器、DCS集散控制系统、分布控制系统、过程自动控制系统、自控系统、测控系统、VVVF、PC总线工控机、I/O模板、现场总线产品、数控数显设备、变频调速等电气传动装置、动力传动设备、电动与机械传动装置、制动系统等。

While in the automatically controlled one-chip computer application system, work often by the time which are installed into time controller before, so calculagraph is one of the main part of the most automatic control instruments.

而在自动控制的单片机应用系统中，往往采用的是以时间为条件的时序控制，因此计时器构成了大多数自动控制系统中必不可少的组成部分。

On control method, develop under the control of from hand movement to autocontrol; On the control function, arrive at intellectualized under the control of from developing simplely under the control of; Develop on the busy, from scheme weight to informatization treatment; On controlling principle, touch the relay logic navar working a telephone switchboard stiffly from unitary having developing to centering on microprocessor or microcomputer network-rization autocontrol system.

控制方法，开发的控制之下，从手运动的自动控制；在控制功能，达到智能化的控制之下，来自发展中国家单纯的控制之下；开发的繁忙，体重从计划向信息化的待遇；控制原则，触摸继电器逻辑navar工作电话总机招待了从单一发展以围绕微处理器或微机网络化自动控制系统。

The system can monitor, manage and control all pyrology parameters in real-time with high-precision. It can self-govern independently, and can also acts as a local area intelligent system of large pyrology Monitoring and autocontrol system for power plants.

该系统能够实时、全面、高精度监测、管理和自动控制热工参数，既可以独立运行，也可以作为大型发电厂热工监测与自动控制系统的局域系统。

After it introduced the zymotechnics biology hydrogen technology technical process which was instructed under the ethyl alcohol fermentation biological hydrogen theory, it also elaborated the biological hydrogen water treatment automatic control system structure drawing and the control plan. It has carried on the detailed introduction to the lowest level entire production control process. It is including the mix regulating reservoir automatic control return route, the biological system hydrogen reactor temperature, the PH value control loop, the tired of the oxygen reactor temperature, the PH value control loop, need oxygen response pond control loop, sedimentation pond control loop, the biological hydrogen examination return route and so on..

在介绍了乙醇型发酵生物制氢理论指导下的发酵法生物制氢技术的工艺流程之后，又论述了生物制氢水处理自动控制系统的结构图和控制方案，并且对最底层的整个生产控制过程进行了详细介绍，包括了混合调节池自动控制回路，生物制氢反应器的温度、PH值控制回路，厌氧反应器温度、PH值控制回路，好氧反应池控制回路，沉淀池控制回路，生物制氢间氢气检测回路等等。

For the best control effect, a fuzzy control strategy is introduced in the automatic system. 9 intelligent sensors decentralized in each workshop collects each workshop temperature information, then the fuzzy control machine deals with these data, and sends the dealt information to S7-300PLC to control 9 air-conditions placed on rooftop to run.

要保证加工质量，就要保证空调系统能将车间温、湿度在加工期间随时都控制在要求的范围内，为了达到最优的控制效果，该空调自动控制系统还引入了模糊控制策略，利用分布在车间各个位置的九台智能温、湿度传感器采集不同位置的车间温、湿度信息，通过模糊控制器处理后，送入S7-200PLC进行程序处理，控制九台屋顶空调机组动作，实时进行调整，使车间内的温、湿度总能处于系统设定的范围内。

In this paper,the threshold of the automatic control system for the synchronous differential lock of off road vehicle is analyzed.With the cornering model of a three-axle vehicle,the response limit of the system is analyzed theoretically.Through the analysis of the mechanical strength and the engaging characteristics of the dog clutch,the maximum difference of rotation speed between two parts of the dog clutch and hence the upper activation limit of the system are calculated

本文阐述了越野汽车差速器同步锁止机构自动控制系统的组成和工作原理，分析了其控制门限；利用所建立的三轴汽车转向行驶运动模型，在理论上确定了越野汽车差速器同步锁止机构自动控制系统的响应界限；通过对同步锁止机构牙嵌式离合器强度和接合特性的分析研究，确定了牙嵌式离合器允许的最高转速差，从而确定了动作限值的上限

Using coder ,D/A transducer and frequency converting speed regulator makes up the automatic control system of rope machine's wire ranging apparatus.

利用编码器、D/A变换器、变频调速装置，构成制绳机排线自动控制系统，将原间歇位移随动控制系统改为连续位移自动控制系统，可以解决制绳机钢丝绳收线排布不均的问

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。