电子与通信技术专业英语UnitⅢ-12课件

UnitⅢElectronicInstrumentandProductsLesson12TheOscilloscope

UnitⅢElectronicInstrumentNewWordsvirtual['və:tʃuəl]adj.（计算机）虚拟的；hardware['hɑ:dwεə]n.计算机硬件transform[træns‘fɔ:m]v.改变；改观；变换transmit[trænz'mit]v.传输；传送；发送interpreter[in'tə:pritə]n.解释者；翻译器NewWordsconverter[kən‘və:tə]n.变换器；换流器，变压器，变频器implementation[,implimen‘teiʃən]n.成就；贯彻；安装启用modular['mɔdjulə]adj.模块化的monitor[‘mɔnitə]n.显示屏，屏幕；

[计]显示器；监测仪；

vi.监视converter[kən‘və:tə]n.synchronization[,siŋkrənai‘zeiʃən]n.同一时刻；同步；bus[bʌs]n.[计]（电脑的）总线Ethernet['i:θə,net]n.以太网latency['leitənsi]n.潜伏；潜在因素integrate['intiɡreit]v.使一体化；使集成instrumentation[,instrumen'teiʃən]n.仪器synchronization[,siŋkrənai‘zeNotes1.Itiswidelyusedin

designwork,trouble-shootingandsigna1monitoring,manufacturingandproduction-linetesting,andmanyotherapplicationswheretheobservationofanelectricalwaveformisdesired.

它被广泛地用于电子设计、故障探测、信号监测、生产制造、流水线检测及许多需要观察电子信号波形的应用场合。“where”此处不是指地点，而是指“领域”或“应用场合”。Notes2.Oscilloscopesrangefromthebasic,orgeneral-purposetypes,tothespecial-purposetype.

示波器包括从通用示波器到专用示波器的多种类型。“rangefrom”意为“从...到...变动”或“从...到...范围”例如：

Thechildren'sagesrangefrom8to15.

这些孩子们的年龄在8岁到15岁之间。2.Oscilloscopesrangefromthe3.Thegeneralpurposeoscilloscopeissuitablefor

anyoftheusualapplicationsinservicingcommunications,scientific,orindustrialworkwherethefrequencyofthesignaltobeobserveddoesnotgreatlyexceed500kHz.

通用示波器适用于通信、科学研究、工业生产等各个领域，用来观察频率不超过500kHz以上的电子信号。“in”意为“在……方面”或“在……领域”3.Thegeneralpurposeoscillos4.Horizontalsweepisatermreferringtotheactionofthehorizontalsystemcausingtheglowingdottomoveacrossthescreen.

水平扫描是这样的术语，它指水平系统使光点沿水平方向扫过屏幕。“term”意为“术语”，而“referring”是动词现在分词，作后置定语。4.Horizontalsweepisatermr5.Thetriggerisnecessarytostabilizearepeatingsignal.Itensuresthatthesweepbeginsatthesamepointofarepeatingsignal,resultinginaclearpictureasshowninFigure3-4（b）.

稳定重复显示的波形需要触发。它保证扫描在同一点开始重复显示波形，使波形如图3-4（b）所示清晰地显示。“resultingin……”是动词现在分词作为伴随状语。“resultingin”意为“导致”，表结果。例如：

SometimesIpay,sometimeshepaysitseemstoaverageout(ieresultinafairbalance)intheend.

有时我付钱,有时他付钱--到头来似乎两相抵销。5.ThetriggerisnecessarytoTranslationofTextsLesson12TheOscilloscopeOneofthemostimportantelectronictestandmeasuringinstrumentsistheoscilloscope.Itiswidelyusedin

designwork,trouble-shootingandsignalmonitoring,manufacturingandproduction-linetesting,andmanyotherapplicationswheretheobservationofanelectricalwaveformisdesired.TranslationofTextsLesson12第12课示波器示波器是最重要的电子测量仪器之一。它被广泛地用于电子设计、故障探测、信号监测、生产制造、流水线检测及许多需要观察电子信号波形的应用场合。第12课示波器Oscilloscopesrangefromthebasic,orgeneral-purposetypes,tothespecial-purposetypes.Thegeneralpurposeoscilloscopeissuitablefor

anyoftheusualapplicationsinservicingcommunications,scientific,orindustrialworkwherethefrequencyofthesignaltobeobserveddoesnotgreatlyexceed500kHz.Oscilloscopesrange

示波器的类型包括通用示波器和专用示波器。通用示波器适用于通信、科学研究、工业生产等各个领域，用来观察频率不超过500kHz以上的电子信号。示波器的类型包括通用示波器和专用示波器。Fig.12-1isasimpleblockdiagramthatshowshowananalogoscilloscopedisplaysameasuredsignal.Whenyouconnectanoscilloscopeprobetoacircuit,thevoltagesignaltravelsthroughtheprobetotheverticalsystemoftheoscilloscope.Fig.12-1isasimpl

图12-1是一个简单的方框图，表示了模拟示波器是如何显示被测信号的。当你把示波器探头连上电路，电压信号则通过探头进入示波器的垂直系统。图12-1是一个简单的方框图，表示了模拟Thesignaltravelsdirectlytotheverticaldeflectionplatesofthecathoderaytube(CRT).Voltageappliedtothesedeflectionplatescausesaglowingdottomove.(AnelectronbeamhittingphosphorinsidetheCRTcreatestheglowingdot.)Apositivevoltagecausesthedottomoveupwhileanegativevoltagecausesthedottomovedown.Dependingonhowyousettheverticalscale(volts/divcontrol),anattenuatorreducesthesignalvoltageoranamplifierincreasesthesignalvoltage.Thesignaltravelsd

信号直接进入阴极射线管（CRT）的垂直偏转板。加在这个偏转板上的电压使光点运动。（电子束撞击CRT内的荧光屏上产生光点）。正电压使光点向上运动，而负电压使光点向下运动。衰减器减小显示的信号电压或放大器增大显示的信号电压，取决于你如何调节垂直偏转旋钮（volts/div控制旋钮）。信号直接进入阴极射线管（CRT）的垂直偏Thesignalalsotravelstothetriggersystemtostartortriggera"horizontalsweep".Horizontalsweepisatermreferringtotheactionofthehorizontalsystemcausingtheglowingdottomoveacrossthescreen.Triggeringthehorizontalsystemcausesthehorizontaltimebasetomovetheglowingdotacrossthescreenfromlefttorightwithinaspecifictimeinterval.Thesignalalsotrav

信号还进入触发系统开始或触发“水平扫描”。水平扫描是指水平系统使光点沿水平方向扫过屏幕。对水平系统的触发使水平时基电路在专门的时间间隔内让光点从左至右扫过屏幕。信号还进入触发系统开始或触发“水平扫描”Thetriggerisnecessarytostabilizearepeatingsignal.Itensuresthatthesweepbeginsatthesamepointofarepeatingsignal,resultinginaclearpictureasshowninFigure12-2（b）.Thetriggerisnece

稳定重复显示的波形需要触发系统。它保证扫描在同一点开始重复显示波形，使波形如图12-2（b）所示清晰地显示。稳定重复显示的波形需要触发系统。它保证扫Inconclusion,touseananalogoscilloscope,youneedtoadjustthreebasicsettingstoaccommodateanincomingsignal:Theattenuationoramplificationofthesignal.Usethevolts/divcontroltoadjusttheamplitudeofthesignalbeforeitisappliedtotheverticaldeflectionplates.Inconclusion,tous

总之，使用模拟示波器时，为了完全显示连续出现的信号波形，需要调节三个基本按键：衰减或增大信号：使用“volts/div”控制键，以便在信号还未加到垂直偏转板之前调节信号的振幅。总之，使用模拟示波器时，为了完全显示连续Thetimebase.Usethesec/divcontroltosettheamountoftimeperdivisionrepresentedhorizontallyacrossthescreen.Thetriggeringoftheoscilloscope.Usethetriggerleveltostabilizearepeatingsignal.Thetimebase.Usethe

时基：使用“sec/div”控制键，设置屏幕水平方向每格所代表的时间长短。示波器的触发：使用“触发电平”控制键稳定重复显示的信号。时基：使用“sec/div”控制键，设置屏幕水Also,adjustingthefocusandintensitycontrolsenablesyoutocreateasharp,visibledisplay.Fig12-3isdiagramofoscilloscope’spanel.Also,adjustingthe

还可以调节聚焦和亮度控制旋钮，以保证显示的波形尖锐和可以看见。图12－3为示波器的面板图。还可以调节聚焦和亮度控制旋钮，以保证显示Exercises1.WriteT(True)orF(False)besidethefollowingstatementsaboutthetext.Exercisesa.Thegeneralpurposeoscilloscopeissuitablefor

special-purposeapplications.b.Thegeneralpurposeoscilloscopeisusedinservicingcommunications,scientific,orindustrialworkwherethefrequencyofthesignaltobeobserveddoesnotgreatlyexceed1000kHz.a.Thegeneralpurposeoscilloc.Thesignaltravelsdirectlytotheverticaldeflectionplatesofthecathoderaytube(CRT).d.Voltageappliedtothesedeflectionplatescausesaglowingdottoless.c.Thesignaltravelsdirectlye.Apositivevoltagecausesthedottomovedownwhileanegativevoltagecausesthedottomoveup.e.Apositivevoltagecausest2.Fillinthemissingwordsaccordingtothetext.2.Fillinthemissingwordsa.Oneofthemostimportant___________and_________istheoscilloscope.a.Oneofthemostimportant_b.Itiswidelyusedin

designwork,________and________,manufacturingandproduction-linetesting,andmanyotherapplicationswheretheobservationofanelectrical_________isdesired.b.Itiswidelyusedin

designc.Oscilloscopesrangefromthe__________,tothespecial-purposetypes.c.Oscilloscopesrangefromthd.Whenyouconnectanoscilloscopeprobetoacircuit,the__________travelsthroughtheprobetotheverticalsystemofthe____________.d.Whenyouconnectanoscilloe.Anelectronbeamhittingphosphorinsidethe_________createstheglowingdot.e.Anelectronbeamhittingphf.Thesignalalsotravelstothetriggersystemtostartortriggera"__________".f.Thesignalalsotravelsto3.TranslatethefollowingparagraphintoChinese.

3.TranslatethefollowingparInconclusion,touseananalogoscilloscope,youneedtoadjustthreebasicsettingstoaccommodateanincomingsignal:Theattenuationoramplificationofthesignal.Usethevolts/divcontroltoadjusttheamplitudeofthesignalbeforeitisappliedtotheverticaldeflectionplates.Thetimebase.Usethesec/divcontroltosettheamountoftimeperdivisionrepresentedhorizontallyacrossthescreen.Inconclusion,touThetriggeringoftheoscilloscope.Usethetriggerleveltostabilizearepeatingsignal.Also,adjustingthefocusandintensitycontrolsenablesyoutocreateasharp,visibledisplay.Fig15-3isdiagramofoscilloscope’spanel.ThetriggeringoftheoEndEndUnitⅢElectronicInstrumentandProductsLesson12TheOscilloscope

UnitⅢElectronicInstrumentNewWordsvirtual['və:tʃuəl]adj.（计算机）虚拟的；hardware['hɑ:dwεə]n.计算机硬件transform[træns‘fɔ:m]v.改变；改观；变换transmit[trænz'mit]v.传输；传送；发送interpreter[in'tə:pritə]n.解释者；翻译器NewWordsconverter[kən‘və:tə]n.变换器；换流器，变压器，变频器implementation[,implimen‘teiʃən]n.成就；贯彻；安装启用modular['mɔdjulə]adj.模块化的monitor[‘mɔnitə]n.显示屏，屏幕；

[计]显示器；监测仪；

vi.监视converter[kən‘və:tə]n.synchronization[,siŋkrənai‘zeiʃən]n.同一时刻；同步；bus[bʌs]n.[计]（电脑的）总线Ethernet['i:θə,net]n.以太网latency['leitənsi]n.潜伏；潜在因素integrate['intiɡreit]v.使一体化；使集成instrumentation[,instrumen'teiʃən]n.仪器synchronization[,siŋkrənai‘zeNotes1.Itiswidelyusedin

designwork,trouble-shootingandsigna1monitoring,manufacturingandproduction-linetesting,andmanyotherapplicationswheretheobservationofanelectricalwaveformisdesired.

它被广泛地用于电子设计、故障探测、信号监测、生产制造、流水线检测及许多需要观察电子信号波形的应用场合。“where”此处不是指地点，而是指“领域”或“应用场合”。Notes2.Oscilloscopesrangefromthebasic,orgeneral-purposetypes,tothespecial-purposetype.

示波器包括从通用示波器到专用示波器的多种类型。“rangefrom”意为“从...到...变动”或“从...到...范围”例如：

Thechildren'sagesrangefrom8to15.

这些孩子们的年龄在8岁到15岁之间。2.Oscilloscopesrangefromthe3.Thegeneralpurposeoscilloscopeissuitablefor

anyoftheusualapplicationsinservicingcommunications,scientific,orindustrialworkwherethefrequencyofthesignaltobeobserveddoesnotgreatlyexceed500kHz.

通用示波器适用于通信、科学研究、工业生产等各个领域，用来观察频率不超过500kHz以上的电子信号。“in”意为“在……方面”或“在……领域”3.Thegeneralpurposeoscillos4.Horizontalsweepisatermreferringtotheactionofthehorizontalsystemcausingtheglowingdottomoveacrossthescreen.

水平扫描是这样的术语，它指水平系统使光点沿水平方向扫过屏幕。“term”意为“术语”，而“referring”是动词现在分词，作后置定语。4.Horizontalsweepisatermr5.Thetriggerisnecessarytostabilizearepeatingsignal.Itensuresthatthesweepbeginsatthesamepointofarepeatingsignal,resultinginaclearpictureasshowninFigure3-4（b）.

稳定重复显示的波形需要触发。它保证扫描在同一点开始重复显示波形，使波形如图3-4（b）所示清晰地显示。“resultingin……”是动词现在分词作为伴随状语。“resultingin”意为“导致”，表结果。例如：

SometimesIpay,sometimeshepaysitseemstoaverageout(ieresultinafairbalance)intheend.

有时我付钱,有时他付钱--到头来似乎两相抵销。5.ThetriggerisnecessarytoTranslationofTextsLesson12TheOscilloscopeOneofthemostimportantelectronictestandmeasuringinstrumentsistheoscilloscope.Itiswidelyusedin

designwork,trouble-shootingandsignalmonitoring,manufacturingandproduction-linetesting,andmanyotherapplicationswheretheobservationofanelectricalwaveformisdesired.TranslationofTextsLesson12第12课示波器示波器是最重要的电子测量仪器之一。它被广泛地用于电子设计、故障探测、信号监测、生产制造、流水线检测及许多需要观察电子信号波形的应用场合。第12课示波器Oscilloscopesrangefromthebasic,orgeneral-purposetypes,tothespecial-purposetypes.Thegeneralpurposeoscilloscopeissuitablefor

anyoftheusualapplicationsinservicingcommunications,scientific,orindustrialworkwherethefrequencyofthesignaltobeobserveddoesnotgreatlyexceed500kHz.Oscilloscopesrange

示波器的类型包括通用示波器和专用示波器。通用示波器适用于通信、科学研究、工业生产等各个领域，用来观察频率不超过500kHz以上的电子信号。示波器的类型包括通用示波器和专用示波器。Fig.12-1isasimpleblockdiagramthatshowshowananalogoscilloscopedisplaysameasuredsignal.Whenyouconnectanoscilloscopeprobetoacircuit,thevoltagesignaltravelsthroughtheprobetotheverticalsystemoftheoscilloscope.Fig.12-1isasimpl

图12-1是一个简单的方框图，表示了模拟示波器是如何显示被测信号的。当你把示波器探头连上电路，电压信号则通过探头进入示波器的垂直系统。图12-1是一个简单的方框图，表示了模拟Thesignaltravelsdirectlytotheverticaldeflectionplatesofthecathoderaytube(CRT).Voltageappliedtothesedeflectionplatescausesaglowingdottomove.(AnelectronbeamhittingphosphorinsidetheCRTcreatestheglowingdot.)Apositivevoltagecausesthedottomoveupwhileanegativevoltagecausesthedottomovedown.Dependingonhowyousettheverticalscale(volts/divcontrol),anattenuatorreducesthesignalvoltageoranamplifierincreasesthesignalvoltage.Thesignaltravelsd

信号直接进入阴极射线管（CRT）的垂直偏转板。加在这个偏转板上的电压使光点运动。（电子束撞击CRT内的荧光屏上产生光点）。正电压使光点向上运动，而负电压使光点向下运动。衰减器减小显示的信号电压或放大器增大显示的信号电压，取决于你如何调节垂直偏转旋钮（volts/div控制旋钮）。信号直接进入阴极射线管（CRT）的垂直偏Thesignalalsotravelstothetriggersystemtostartortriggera"horizontalsweep".Horizontalsweepisatermreferringtotheactionofthehorizontalsystemcausingtheglowingdottomoveacrossthescreen.Triggeringthehorizontalsystemcausesthehorizontaltimebasetomovetheglowingdotacrossthescreenfromlefttorightwithinaspecifictimeinterval.Thesignalalsotrav

信号还进入触发系统开始或触发“水平扫描”。水平扫描是指水平系统使光点沿水平方向扫过屏幕。对水平系统的触发使水平时基电路在专门的时间间隔内让光点从左至右扫过屏幕。信号还进入触发系统开始或触发“水平扫描”Thetriggerisnecessarytostabilizearepeatingsignal.Itensuresthatthesweepbeginsatthesamepointofarepeatingsignal,resultinginaclearpictureasshowninFigure12-2（b）.Thetriggerisnece

稳定重复显示的波形需要触发系统。它保证扫描在同一点开始重复显示波形，使波形如图12-2（b）所示清晰地显示。稳定重复显示的波形需要触发系统。它保证扫Inconclusion,touseananalogoscilloscope,youneedtoadjustthreebasicsettingstoaccommodateanincomingsignal:Theattenuationoramplificationofthesignal.Usethevolts/divcontroltoadjusttheamplitudeofthesignalbeforeitisappliedtotheverticaldeflectionplates.Inconclusion,tous

总之，使用模拟示波器时，为了完全显示连续出现的信号波形，需要调节三个基本按键：衰减或增大信号：使用“volts/div”控制键，以便在信号还未加到垂直偏转板之前调节信号的振幅。总之，使用模拟示波器时，为了完全显示连续Thetimebase.Usethesec/divcontroltosettheamountoftimeperdivisionrepresentedhorizontallyacrossthescreen.Thetriggeringoftheoscilloscope.Usethetriggerleveltostabilizearepeatingsignal.Thetimebase.Usethe

时基：使用“sec/div”控制键，设置屏幕水平方向每格所代表的时间长短。示波器的触发：使用“触发电平”控制键稳定重复显示的信号。时基：使用“sec/div”控制键，设置屏幕水Also,adjustingthefocusandintensitycontrolsenablesyoutocreateasharp,visibledisplay.Fig12-3isdiagramofoscilloscope’spanel.Also,adjustingthe

还可以调节聚焦和亮度控制旋钮，以保证显示的波形尖锐和可以看见。图12－3为示波器的面板图。还可以调节聚焦和亮度控制旋钮，以保证显示Exercises1.WriteT(True)orF(False)besidethefollowingstatementsaboutthetext.Exercisesa.Thegeneralpurposeoscilloscopeissuitablefor

special-purposeapplications.b.Thegeneralpurposeoscilloscopeisusedinservicingcommunications,scientific,orindustrialworkwherethefrequencyofthesignaltobeobserveddoesnotgreatlyexceed1000kHz.a.Thegeneralpurposeoscilloc.Thesignaltravelsdirectlytotheverticaldeflectionplatesofthecathoderaytube(CRT).d.Voltageappliedtothesedeflectionplatescausesaglowingdottoless.c.Thesignaltravelsdirectlye.Apositivevoltagecausesthe