自動控制專業英語(第2版)(簡體書)
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系列名:高職高專電子信息專業系列教材
ISBN13:9787302303442
出版社:清華大學出版社(大陸)
作者:李國厚
出版日:2013/01/01
裝訂/頁數:平裝/298頁
規格:23.5cm*16.8cm (高/寬)
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《高職高專電子信息專業系列教材:自動控制專業英語(第2版)》旨在幫助讀者通過較短時間的學習能較大幅度提高專業英語閱讀和英譯中的能力,具有題材廣泛、內容豐富、專業性和實用性強的特點。全書共有課文20篇,主要包括自動控制理論基礎、模擬和數字電子技術、傳感器和控制工程等方面的內容。每課都由課文、生詞表、注釋、翻譯技巧、英譯中和中譯英的練習及閱讀材料組成,具有較強的知識延伸性。《高職高專電子信息專業系列教材:自動控制專業英語(第2版)》可作為自動化、電氣工程及其他相關專業的教材,也適用于成人教育及職工培訓,並可作為教學參考書和相關專業工程技術人員的自學用書。
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《普通高等教育"十一五"國家級規劃教材?高職高專電子信息專業系列教材:自動控制專業英語(第2版)》可作為自動化、電氣工程及其他相關專業的教材,也適用于成人教育及職工培訓,并可作為教學參考書和相關專業工程技術人員的自學用書。
目次
Unit 1 Voltage and Current LawsTranslating Skills 科技英語翻譯概述Reading Material Charge, Current and VoltageUnit 2 Sinusoidal AC Circuit Analysis and Three-Phase CircuitsTranslating Skills 英漢語序的對比及翻譯Reading Material Power in AC Circuits and RMS ValuesUnit 3 Analog AmplifierTranslating Skills 句量的增減——分譯與合譯Reading Material Analog CircuitsUnit 4 Basic Circuits of Operational AmplifiersTranslating Skills 英漢語序的對比及翻譯(1)Reading Material Class A AmplifiersUnit 5 CMOS Logic CircuitTranslating Skills 英漢語序的對比及翻譯(2)Reading Material Digital Logic SystemsUnit 6 Introductions to Control SystemsTranslating Skills 數詞的譯法Reading Material Advanced ControlUnit 7 Introductions to Mathematical Models of Physical SystemsTranslating Skills 不定式和分詞作狀語的翻譯Reading Material Electrical EngineeringUnit 8 Basic Control Actions and Industrial Automatic Controls(1)Translating Skills 詞義的選擇和引申Reading Material An Eye on Reactor and Computer ControlUnit 9 Basic Control Actions and Industrial Automatic Controls(2)Translating Skills 詞量的增減Reading Material Introductions to SCADAUnit 10 Design and Compensation TecluuquesTranslating Skills 詞性的轉換Reading Material An Introduction to Computer SimulationUnit 11 Nonlinear Control SystemsTranslating Skills 句子成分的轉換Reading Material Computer Interfaces for Instrumentation SystemsUnit 12 Introductions To Phase-Plane AnalysisTranslating Skills 常見多功能詞的譯法(1)Reading Material Motion ControlUnit 13 Microcontroller and Its ApplicationTranslating Skills 常見多功能詞的譯法(2)Reading Material Embedded SystemUnit 14 Electronic Design AutomationTranslating Skills 被動語態的譯法Reading Material What is MatLabUnit 15 Introductions To SensorsTranslating Skills 定語從句及同位語從句的譯法(1)Reading Material Thermoelectric Effects and Temperature MeasurementUnit 16 Introductions to PID ControllersTranslating Skills 定語從句及同位語從句的譯法(2)Reading Material Tuning of the PID ControllerUnit 17 Introductions to PLCTranslating Skills 狀語從句的譯法(1)Reading Material Automation and Soft PLCUnit 18 CAD And CAMTranslating Skills 狀語從句的譯法(2)Reading Material Numerical ControlUnit 19 Intelligent Control and Its DimensionsTranslating Skills 長句的譯法Reading Material Role of Instrumentation and Control in Nuclear Power PlantsUnit 20 Introductions to RoboticsTranslating Skills 科技應用文的譯法Reading Material Mechanization and AutomationAppendix A 國際單位制(SI)Appendix B 度量衡比較表(Metrology Comparison Table)Appendix C 常用符號及數學表達(Common Marks,Symbols and Mamemancal Expressions)Appendix D 常用拉丁文縮寫詞(Common Latin Abbreviations)Appendix E 常用專業詞匯表Appendix F 中英文課程對照參考文獻
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Intentional nonlinearities Some nonlinear elements are intentionally introduced into asystem in order to improve the system performance or to simplify the construction of thesystem,or both.A nonlinear system properly designed to perform a certain function is oftensuperior from economic,weight,space,and reliability points of view to Jinear systemsdesigned to perform the same task.The simplest example of such an intentionally nonlinear system is a conventional relay-operated system.Other examples may be found in optimal control systems which often employ complicated nonlinear controllers.It should be noted that although intentional nonlinear elements may improve the system performance under certain specified operating conditions,they will,in general,degrade system performance under other operating conditions.
Effect of inherent nonlinearities on static accuracy One characteristic of control systems is that power is transmitted by the elements in the feedback path,while the static accuracy of the system is determined by the elements in the feedback path.Thus,the measuring device determines the upper limit on the static accuracy; the static accuracy cannot be better than the accuracy of this measuring device.Therefore,any inherent nonlinearities in the feedback elements should be kept to minimum.
If feedback elements suffer from friction,backlash,etc.,then it is desirable to feed the error signal to an integrating device,because the system may not detect a very small error,unless the small error is integrated continuously,making the magnitude large enough to be detected.
Approaches to the analysis and design of nonlinear control systems There is no general method for dealing with all nonlinear systems because nonlinear differential equations are virtually devoid of a general method of attack.(Exact solutions can be found only for certain simple nonlinear differential equations.For many nonlinear differential equations of practical importance,only approximate solutions are possible,and these solutions hold true only under the limited conditions for which they are obtained.) Because there is no general approach,we may take up each nonlinear equation,or group of similar equations,individually and attempt to develop a method of analysis which will satisfactorily apply to that particular group.(Note that although a very limited amount of generalization within the group of similar equations may be made,a broad generalization of a particular solution is impossible.)
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