電氣工程及其自動(dòng)化專業(yè)英語(yǔ)第一單元課件

CoursewareforUnit1ofElectricalEngineeringancontents目錄IntroductiontoElectricalEngineeringandAutomationBasicknowledgeofelectricalengineeringFundamentalsofAutomationTechnologycontents目錄PracticalOperationsandCaseAnalysisProfessionalEnglishVocabularyandExpression01IntroductiontoElectricalEngineeringandAutomationElectricalEngineeringandAutomationisabranchofengineeringthatfocusesonthedesign,development,installation,operation,andmaintenanceofelectricalandelectronicsystems.Overtime,ElectricalEngineeringandAutomationhasevolvedtoincludeawiderangeofsub-fields,includingpowerengineering,controlsystems,robotics,andmore.Theprofessionhasitsrootsintheindustrialrevolution,wheretheneedformoreefficientandautomatedproductionprocessesledtothedevelopmentofelectricalsystems.Professionalbackgroundanddevelopmenthistory01ElectricalEngineeringandAutomationprofessionalsareresponsibleforthedesign,development,andimplementationofelectricalandelectronicsystemsinvariousindustries.02Theyrequireacombinationoftechnicalknowledge,problem-solvingskills,andhands-onexperiencetobeeffectiveintheirfield.03JobopportunitiesforElectricalEngineeringandAutomationprofessionalsareprojectedtoremainstrongduetotheincreasingdemandforelectricalandelectronicsystemsinvariousindustries.ProfessionalcharacteristicsandemploymentprospectsThesubjectsystemforElectricalEngineeringandAutomationEnglishcoursestypicallyincludescoresubjectssuchaselectricalengineeringtheory,automationtheory,andEnglishproficiency.CurriculumdesignshouldfocusonprovidingstudentswithasolidfoundationinelectricalengineeringandautomationconceptswhilealsodevelopingtheirEnglishlanguageskills.CoursematerialsshouldbepresentedinawaythatintegratesEnglishlanguagelearningwithpracticalexamplesandcasestudiestoenhancestudentunderstandingandretention.Subjectsystemandcurriculumdesign02BasicknowledgeofelectricalengineeringCircuitAclosedpaththatallowscurrenttoflow.SeriesandparallelcircuitsSeriescircuitshavecurrentflowinthesamedirection,whileparallelcircuitshavecurrentflowinoppositedirections.VoltageandcurrentVoltageisthedifferenceinelectricalpotential,andcurrentistherateofflowofcharge.BasicconceptsofcircuitsResistors,capacitors,inductors,diodes,transistors,etc.CircuitcomponentsNodevoltagemethod,meshcurrentmethod,superpositiontheorem,etc.CircuitanalysismethodsCircuitcomponentsandcircuitanalysismethodsAC(AlternatingCurrent):Theflowofelectricityinwhichthedirectionofcurrentchangesperiodically.DC(DirectCurrent):Theflowofelectricityinwhichthedirectionofcurrentremainsconstant.AdvantagesanddisadvantagesofACandDCelectricity.ACandDCelectricityMotorsMotorsconvertelectricalenergyintomechanicalenergy.TheycanbeACorDCmotors.TransformersTransformersaredevicesthattransformelectricalenergyfromonevoltageleveltoanothervoltagelevel.Theyworkontheprincipleofmagneticinduction.PrinciplesofMotorsandTransformers03FundamentalsofAutomationTechnologyAutomationsystemsarecombinationsofcontrolsystems,sensors,actuators,andothercomponentsdesignedtoautomatetheoperationofmachines,processes,andotherequipment.Theyareusedinvariousindustries,includingmanufacturing,processcontrol,transportation,andmore,toimproveefficiency,reducecosts,andincreaseproductivity.Automationsystemscanrangefromsimpletocomplex,dependingontherequirementsoftheapplication.OverviewofAutomationSystemsAutomationcontrolprinciplesarebasedonfeedbackloops,whichmonitortheoutputofaprocessandadjustitsinputtomaintaindesiredoperatingconditions.Modernautomationcontrolsystemsoftenrelyondigitaltechnology,includingmicrocontrollersandprogrammablelogiccontrollers(PLCs),toprocessdataandcontrolequipment.Thecontrolsystemusesvarioustechnologies,suchassensorsandactuators,tomeasureandmanipulatephysicalquantitiesliketemperature,pressure,flowrate,andposition.PrinciplesandTechnologiesofAutomationControlAcomputercontrolsystemisatypeofautomationsystemthatusesacomputertocontrolmachinesorprocesses.Ittypicallyconsistsofacentralprocessingunit(CPU),input/output(I/O)interface,memory,andsoftwareprogramsthatprovidecontrolalgorithmsandmonitoringcapabilities.Computercontrolsystemscanbeusedforawiderangeofapplications,includingindustrialmanufacturing,processcontrol,aviation,andmore.ComputerControlSystemAutomationtechnologyhasawiderangeofapplicationfields.Itisusedinmanufacturingindustriestoautomateproductionlinesandimprovemanufacturingefficiency.Inthetransportationindustry,automationtechnologyisusedintrains,ships,andaircrafttoautomatenavigation,scheduling,andotheroperations.Additionally,automationtechnologyisusedintheenergyindustrytomonitorandcontrolpowergenerationandtransmissionsystems.Itisalsousedintheprocesscontrolindustrytoautomatechemicalreactions,fluidhandling,andotherprocessesthatrequireprecisecontrolofphysicalquantities.Applicationfieldsofautomationtechnology04PracticalOperationsandCaseAnalysis檢查實(shí)驗(yàn)設(shè)備、準(zhǔn)備實(shí)驗(yàn)材料、了解實(shí)驗(yàn)原理和步驟。實(shí)驗(yàn)前準(zhǔn)備按照實(shí)驗(yàn)指導(dǎo)書或教師的指導(dǎo)進(jìn)行實(shí)驗(yàn)操作，注意安全事項(xiàng)。實(shí)驗(yàn)操作Experimentaloperatingproceduresandprecautions實(shí)驗(yàn)后整理：清理實(shí)驗(yàn)現(xiàn)場(chǎng)、整理實(shí)驗(yàn)數(shù)據(jù)和器材。Experimentaloperatingproceduresandprecautions安全注意事項(xiàng)注意實(shí)驗(yàn)設(shè)備的安全使用，避免觸電、燙傷等危險(xiǎn)。遵守實(shí)驗(yàn)室安全規(guī)定，佩戴必要的防護(hù)用具。在教師的指導(dǎo)下進(jìn)行實(shí)驗(yàn)操作，不要擅自操作。01020304Experimentaloperatingproceduresandprecautions準(zhǔn)確記錄實(shí)驗(yàn)數(shù)據(jù)，避免誤差和遺漏。對(duì)實(shí)驗(yàn)數(shù)據(jù)進(jìn)行整理、分類和歸納，使其更加清晰和易于分析。Experimentaldataprocessingandanalysismethods數(shù)據(jù)整理記錄實(shí)驗(yàn)數(shù)據(jù)數(shù)據(jù)處理：采用適當(dāng)?shù)臄?shù)學(xué)方法和軟件對(duì)實(shí)驗(yàn)數(shù)據(jù)進(jìn)行處理，如計(jì)算平均值、求和、繪制圖表等。Experimentaldataprocessingandanalysismethods將不同實(shí)驗(yàn)條件下的數(shù)據(jù)進(jìn)行對(duì)比，分析它們之間的差異和規(guī)律。對(duì)比分析趨勢(shì)分析假設(shè)檢驗(yàn)分析實(shí)驗(yàn)數(shù)據(jù)的變化趨勢(shì)，預(yù)測(cè)未來(lái)的發(fā)展方向。根據(jù)實(shí)驗(yàn)數(shù)據(jù)提出假設(shè)，并通過(guò)實(shí)驗(yàn)驗(yàn)證假設(shè)的正確性。030201Ex