电子信息工程专业英语教程（第5版） 课件 Lesson 29 Oscilloscopes

Lesson29Oscilloscopes《电子信息工程专业英语教程（第5版）》Unit10ElectronicInstruments&MeasurementsLesson29OscilloscopesBackgroundsTexttour

LanguageinuseVocabularyStructureReading/writingtechniques2024/5/292《电子信息工程专业英语教程（第5版）》TerminologyCRT:CathodeRayTube

阴极射线管Transducer

传感器，变频器，变换器Fundamentalfrequency

基频Backgrounds2024/5/293《电子信息工程专业英语教程（第5版）》Terminologysonicboom

声爆single-shot

单脉冲Raster

光栅Backgrounds2024/5/294《电子信息工程专业英语教程（第5版）》TexttourOutlineIntroductionTheTypesofOscilloscopesAnalogOscilloscopesDigitalOscilloscopesDigitalStorageOscilloscopesDigitalPhosphorOscilloscopesDigitalSamplingOscilloscopes2024/5/295《电子信息工程专业英语教程（第5版）》IntroductionNaturemovesintheformofasinewave

Oscilloscopesenablescientists,engineers,technicians,educatorsandothersto“see”eventsthatchangeovertime.

Oscilloscopesareindispensabletoolsforanyonedesigning,manufacturingorrepairingelectronicequipment.Thepossibilitiesareendless.2024/5/296《电子信息工程专业英语教程（第5版）》TheTypesofOscilloscopesanalogoscilloscopedigitaloscilloscopedigitalstorageoscilloscopes(DSOs)digitalphosphoroscilloscopes(DPOs)digitalsamplingoscilloscopes2024/5/297《电子信息工程专业英语教程（第5版）》AnalogOscilloscopesAnanalogoscilloscopeworksbyapplyingthemeasuredsignalvoltagedirectlytotheverticalaxisofanelectronbeamthatmovesfromlefttorightacrosstheoscilloscopescreenCRTprobeattenuatorverticaldeflectionplates2024/5/298《电子信息工程专业英语教程（第5版）》AnalogOscilloscopestriggersystemHorizontalsweepfocusandintensitycontrols2024/5/299《电子信息工程专业英语教程（第5版）》AnalogOscilloscopesAnanalogoscilloscope2024/5/2910《电子信息工程专业英语教程（第5版）》DigitalOscilloscopes

DigitalStorageOscilloscopesDSOdisplaytypicallyreliesonaraster-typescreenratherthanluminousphosphor.DSOsallowyoutocaptureandvieweventsthatmayhappenonlyonce–knownastransients.DSOstypicallyhavenoreal-timeintensitygradingDSOusesaserial-processingarchitecture(seeFigure10.5)tocapture,displayandanalyzesignals2024/5/2911《电子信息工程专业英语教程（第5版）》DigitalOscilloscopes

DigitalStorageOscilloscopesTheserial-processingarchitectureofadigitalstorageoscilloscope(DSO)2024/5/2912《电子信息工程专业英语教程（第5版）》DigitalOscilloscopes

DigitalPhosphorOscilloscopesDPOoffersanewapproachtooscilloscopearchitecture.ThisarchitectureenablesaDPOtodeliveruniqueacquisitionanddisplaycapabilitiestoaccuratelyreconstructasignal.DPOemploysaparallel-processingarchitecturetoperformthesefunctions,asshowninFigure10.6.TheDPOarchitecturededicatesuniqueASIChardwaretoacquirewaveformimages,deliveringhighwaveformcaptureratesthatresultinahigherlevelofsignalvisualization.2024/5/2913《电子信息工程专业英语教程（第5版）》DigitalOscilloscopes

DigitalPhosphorOscilloscopesTheparallel-processingarchitectureofadigitalphosphoroscilloscope(DPO)2024/5/2914《电子信息工程专业英语教程（第5版）》DigitalOscilloscopes

DigitalSamplingOscilloscopesAdigitalsamplingoscilloscopeisanidealtoolforaccuratelycapturingsignalswhosefrequencycomponentsaremuchhigherthantheoscilloscope’ssamplerate.Thisoscilloscopeiscapableofmeasuringsignalsofuptoanorderofmagnitudefasterthananyotheroscilloscope.Itcanachievebandwidthandhigh-speedtimingtentimeshigherthanotheroscilloscopesforrepetitivesignals.Sequentialequivalent-timesamplingoscilloscopesareavailablewithbandwidthsto80GHz.2024/5/2915《电子信息工程专业英语教程（第5版）》VocabularyPervadefundamentaldemandarchiveLegibleStructureReading/writingtechniquesLanguageinuse2024/5/2916《电子信息工程专业英语教程（第5版）》Vocabulary2024/5/2917《电子信息工程专业英语教程（第5版）》PervadeindictionaryTobepresentthroughout;permeate.

遍及，渗透2024/5/2918《电子信息工程专业英语教程（第5版）》PervadeintextEnergy,vibrating

particlesandotherinvisibleforcespervade

ourphysicaluniverse.

在物质宇宙中，到处存在着能量、振动粒子和其他人眼看不见的作用力。

2024/5/2919《电子信息工程专业英语教程（第5版）》FundamentalindictionaryOforrelatingtothefoundationorbase;elementary:

基础的；根本的：thefundamentallawsoftheuniverse.Formingorservingasanessentialcomponentofasystemorstructure;central:

主要的anexamplethatwasfundamentaltotheargument.Ofgreatsignificanceorentailingmajorchange:

极其重要的abookthatunderwentfundamentalrevision.2024/5/2920《电子信息工程专业英语教程（第5版）》FundamentalindictionaryOforrelatingtothecomponentoflowestfrequencyofaperiodicwaveorquantity.

基波的Oforrelatingtothelowestpossiblefrequencyofavibratingelementorsystem.

最低频率的Havingtherootinthebass:

基音的2024/5/2921《电子信息工程专业英语教程（第5版）》FundamentalindictionarySomethingthatisanessentialornecessarypartofasystemorobject.

基础

Thelowestfrequencyofaperiodicallyvaryingquantityorofavibratingsystem.

基频2024/5/2922《电子信息工程专业英语教程（第5版）》FundamentalintextEvenlight–partparticle,partwave–hasafundamentalfrequency,whichcanbeobservedascolor.甚至是光——半波、半粒子——也有基波频率，这个频率在人看来就是颜色。

2024/5/2923《电子信息工程专业英语教程（第5版）》Fundamentalinuse

basicfundamental基本原理crystalfundamental晶体基频digitaltelevisionfundamental数字电视基础imagefundamental图象基础2024/5/2924《电子信息工程专业英语教程（第5版）》DemandindictionaryToaskforurgentlyorperemptorily:

要求Toclaimasjustordue:

要求Toasktobeinformedof:

要求Torequireasuseful,just,proper,ornecessary;callfor:

要求Toclaimformally;laylegalclaimto.

要求2024/5/2925《电子信息工程专业英语教程（第5版）》DemandindictionaryThedesiretopossessacommodityormakeuseofaservice,combinedwiththeabilitytopurchaseit.

需求Theamountofacommodityorservicethatpeoplearereadytobuyforagivenprice:

需求量2024/5/2926《电子信息工程专业英语教程（第5版）》DemandindictionaryAcodingtechniqueinwhichacommandtoreadorwriteisinitiatedastheneedforanewblockofdataoccurs,thuseliminatingtheneedtostoredata.

需求2024/5/2927《电子信息工程专业英语教程（第5版）》DemandintextAstheeyesoftheengineer,oscilloscopesarethekeytomeetingtoday’sdemandingmeasurementchallenges.示波器就像工程师的眼睛一样，它是完成当今苛刻测量任务的关键仪器。

2024/5/2928《电子信息工程专业英语教程（第5版）》Demandinuse

demanding费力的，费神的exhaustedbyademandingjob苛刻的ademandingboss2024/5/2929《电子信息工程专业英语教程（第5版）》ArchiveindictionaryAplaceorcollectioncontainingrecords,documents,orothermaterialsofhistoricalinterest:

档案馆，档案室Arepositoryforstoredmemoriesorinformation:

存储场所thearchiveofthemind.2024/5/2930《电子信息工程专业英语教程（第5版）》Archiveintext

DSOsallowyoutocaptureandvieweventsthatmayhappenonlyonce–knownastransients.Becausethewaveforminformationexistsindigitalformasaseriesofstoredbinaryvalues,itcanbeanalyzed,archived,printed,andotherwiseprocessed,withintheoscilloscopeitselforbyanexternalcomputer.DSO能够捕捉、观测那些可能只出现一次的事件——

暂态事件。由于波形信息是以一