電子與通信技術(shù)專業(yè)英語UnitⅢ-12課件

UnitⅢElectronicInstrumentandProductsLesson12TheOscilloscope

UnitⅢElectronicInstrumentNewWordsvirtual['v?:t?u?l]adj.（計算機）虛擬的；hardware['hɑ:dwε?]n.計算機硬件transform[tr?ns‘f?:m]v.改變；改觀；變換transmit[tr?nz'mit]v.傳輸；傳送；發(fā)送interpreter[in't?:prit?]n.解釋者；翻譯器NewWordsconverter[k?n‘v?:t?]n.變換器；換流器，變壓器，變頻器implementation[,implimen‘tei??n]n.成就；貫徹；安裝啟用modular['m?djul?]adj.模塊化的monitor[‘m?nit?]n.顯示屏，屏幕；

[計]顯示器；監(jiān)測儀；

vi.監(jiān)視converter[k?n‘v?:t?]n.synchronization[,si?kr?nai‘zei??n]n.同一時刻；同步；bus[b?s]n.[計]（電腦的）總線Ethernet['i:θ?,net]n.以太網(wǎng)latency['leit?nsi]n.潛伏；潛在因素integrate['intiɡreit]v.使一體化；使集成instrumentation[,instrumen'tei??n]n.儀器synchronization[,si?kr?nai‘zeNotes1.Itiswidelyusedin

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

它被廣泛地用于電子設(shè)計、故障探測、信號監(jiān)測、生產(chǎn)制造、流水線檢測及許多需要觀察電子信號波形的應(yīng)用場合?！皐here”此處不是指地點，而是指“領(lǐng)域”或“應(yīng)用場合”。Notes2.Oscilloscopesrangefromthebasic,orgeneral-purposetypes,tothespecial-purposetype.

示波器包括從通用示波器到專用示波器的多種類型。“rangefrom”意為“從...到...變動”或“從...到...范圍”例如：

Thechildren'sagesrangefrom8to15.

這些孩子們的年齡在8歲到15歲之間。2.Oscilloscopesrangefromthe3.Thegeneralpurposeoscilloscopeissuitablefor

anyoftheusualapplicationsinservicingcommunications,scientific,orindustrialworkwherethefrequencyofthesignaltobeobserveddoesnotgreatlyexceed500kHz.

通用示波器適用于通信、科學(xué)研究、工業(yè)生產(chǎn)等各個領(lǐng)域，用來觀察頻率不超過500kHz以上的電子信號?！癷n”意為“在……方面”或“在……領(lǐng)域”3.Thegeneralpurposeoscillos4.Horizontalsweepisatermreferringtotheactionofthehorizontalsystemcausingtheglowingdottomoveacrossthescreen.

水平掃描是這樣的術(shù)語，它指水平系統(tǒng)使光點沿水平方向掃過屏幕?！皌erm”意為“術(shù)語”，而“referring”是動詞現(xiàn)在分詞，作后置定語。4.Horizontalsweepisatermr5.Thetriggerisnecessarytostabilizearepeatingsignal.Itensuresthatthesweepbeginsatthesamepointofarepeatingsignal,resultinginaclearpictureasshowninFigure3-4（b）.

穩(wěn)定重復(fù)顯示的波形需要觸發(fā)。它保證掃描在同一點開始重復(fù)顯示波形，使波形如圖3-4（b）所示清晰地顯示?！皉esultingin……”是動詞現(xiàn)在分詞作為伴隨狀語。“resultingin”意為“導(dǎo)致”，表結(jié)果。例如：

SometimesIpay,sometimeshepaysitseemstoaverageout(ieresultinafairbalance)intheend.

有時我付錢,有時他付錢--到頭來似乎兩相抵銷。5.ThetriggerisnecessarytoTranslationofTextsLesson12TheOscilloscopeOneofthemostimportantelectronictestandmeasuringinstrumentsistheoscilloscope.Itiswidelyusedin

designwork,trouble-shootingandsignalmonitoring,manufacturingandproduction-linetesting,andmanyotherapplicationswheretheobservationofanelectricalwaveformisdesired.TranslationofTextsLesson12第12課示波器示波器是最重要的電子測量儀器之一。它被廣泛地用于電子設(shè)計、故障探測、信號監(jiān)測、生產(chǎn)制造、流水線檢測及許多需要觀察電子信號波形的應(yīng)用場合。第12課示波器Oscilloscopesrangefromthebasic,orgeneral-purposetypes,tothespecial-purposetypes.Thegeneralpurposeoscilloscopeissuitablefor

anyoftheusualapplicationsinservicingcommunications,scientific,orindustrialworkwherethefrequencyofthesignaltobeobserveddoesnotgreatlyexceed500kHz.Oscilloscopesrange

示波器的類型包括通用示波器和專用示波器。通用示波器適用于通信、科學(xué)研究、工業(yè)生產(chǎn)等各個領(lǐng)域，用來觀察頻率不超過500kHz以上的電子信號。示波器的類型包括通用示波器和專用示波器。Fig.12-1isasimpleblockdiagramthatshowshowananalogoscilloscopedisplaysameasuredsignal.Whenyouconnectanoscilloscopeprobetoacircuit,thevoltagesignaltravelsthroughtheprobetotheverticalsystemoftheoscilloscope.Fig.12-1isasimpl

圖12-1是一個簡單的方框圖，表示了模擬示波器是如何顯示被測信號的。當(dāng)你把示波器探頭連上電路，電壓信號則通過探頭進入示波器的垂直系統(tǒng)。圖12-1是一個簡單的方框圖，表示了模擬Thesignaltravelsdirectlytotheverticaldeflectionplatesofthecathoderaytube(CRT).Voltageappliedtothesedeflectionplatescausesaglowingdottomove.(AnelectronbeamhittingphosphorinsidetheCRTcreatestheglowingdot.)Apositivevoltagecausesthedottomoveupwhileanegativevoltagecausesthedottomovedown.Dependingonhowyousettheverticalscale(volts/divcontrol),anattenuatorreducesthesignalvoltageoranamplifierincreasesthesignalvoltage.Thesignaltravelsd

信號直接進入陰極射線管（CRT）的垂直偏轉(zhuǎn)板。加在這個偏轉(zhuǎn)板上的電壓使光點運動。（電子束撞擊CRT內(nèi)的熒光屏上產(chǎn)生光點）。正電壓使光點向上運動，而負(fù)電壓使光點向下運動。衰減器減小顯示的信號電壓或放大器增大顯示的信號電壓，取決于你如何調(diào)節(jié)垂直偏轉(zhuǎn)旋鈕（volts/div控制旋鈕）。信號直接進入陰極射線管（CRT）的垂直偏Thesignalalsotravelstothetriggersystemtostartortriggera"horizontalsweep".Horizontalsweepisatermreferringtotheactionofthehorizontalsystemcausingtheglowingdottomoveacrossthescreen.Triggeringthehorizontalsystemcausesthehorizontaltimebasetomovetheglowingdotacrossthescreenfromlefttorightwithinaspecifictimeinterval.Thesignalalsotrav

信號還進入觸發(fā)系統(tǒng)開始或觸發(fā)“水平掃描”。水平掃描是指水平系統(tǒng)使光點沿水平方向掃過屏幕。對水平系統(tǒng)的觸發(fā)使水平時基電路在專門的時間間隔內(nèi)讓光點從左至右掃過屏幕。信號還進入觸發(fā)系統(tǒng)開始或觸發(fā)“水平掃描”Thetriggerisnecessarytostabilizearepeatingsignal.Itensuresthatthesweepbeginsatthesamepointofarepeatingsignal,resultinginaclearpictureasshowninFigure12-2（b）.Thetriggerisnece

穩(wěn)定重復(fù)顯示的波形需要觸發(fā)系統(tǒng)。它保證掃描在同一點開始重復(fù)顯示波形，使波形如圖12-2（b）所示清晰地顯示。穩(wěn)定重復(fù)顯示的波形需要觸發(fā)系統(tǒng)。它保證掃Inconclusion,touseananalogoscilloscope,youneedtoadjustthreebasicsettingstoaccommodateanincomingsignal:Theattenuationoramplificationofthesignal.Usethevolts/divcontroltoadjusttheamplitudeofthesignalbeforeitisappliedtotheverticaldeflectionplates.Inconclusion,tous

總之，使用模擬示波器時，為了完全顯示連續(xù)出現(xiàn)的信號波形，需要調(diào)節(jié)三個基本按鍵：衰減或增大信號：使用“volts/div”控制鍵，以便在信號還未加到垂直偏轉(zhuǎn)板之前調(diào)節(jié)信號的振幅?？傊?，使用模擬示波器時，為了完全顯示連續(xù)Thetimebase.Usethesec/divcontroltosettheamountoftimeperdivisionrepresentedhorizontallyacrossthescreen.Thetriggeringoftheoscilloscope.Usethetriggerleveltostabilizearepeatingsignal.Thetimebase.Usethe

時基：使用“sec/div”控制鍵，設(shè)置屏幕水平方向每格所代表的時間長短。示波器的觸發(fā)：使用“觸發(fā)電平”控制鍵穩(wěn)定重復(fù)顯示的信號。時基：使用“sec/div”控制鍵，設(shè)置屏幕水Also,adjustingthefocusandintensitycontrolsenablesyoutocreateasharp,visibledisplay.Fig12-3isdiagramofoscilloscope’spanel.Also,adjustingthe

還可以調(diào)節(jié)聚焦和亮度控制旋鈕，以保證顯示的波形尖銳和可以看見。圖12－3為示波器的面板圖。還可以調(diào)節(jié)聚焦和亮度控制旋鈕，以保證顯示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['v?:t?u?l]adj.（計算機）虛擬的；hardware['hɑ:dwε?]n.計算機硬件transform[tr?ns‘f?:m]v.改變；改觀；變換transmit[tr?nz'mit]v.傳輸；傳送；發(fā)送interpreter[in't?:prit?]n.解釋者；翻譯器NewWordsconverter[k?n‘v?:t?]n.變換器；換流器，變壓器，變頻器implementation[,implimen‘tei??n]n.成就；貫徹；安裝啟用modular['m?djul?]adj.模塊化的monitor[‘m?nit?]n.顯示屏，屏幕；

[計]顯示器；監(jiān)測儀；

vi.監(jiān)視converter[k?n‘v?:t?]n.synchronization[,si?kr?nai‘zei??n]n.同一時刻；同步；bus[b?s]n.[計]（電腦的）總線Ethernet['i:θ?,net]n.以太網(wǎng)latency['leit?nsi]n.潛伏；潛在因素integrate['intiɡreit]v.使一體化；使集成instrumentation[,instrumen'tei??n]n.儀器synchronization[,si?kr?nai‘zeNotes1.Itiswidelyusedin

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

它被廣泛地用于電子設(shè)計、故障探測、信號監(jiān)測、生產(chǎn)制造、流水線檢測及許多需要觀察電子信號波形的應(yīng)用場合?！皐here”此處不是指地點，而是指“領(lǐng)域”或“應(yīng)用場合”。Notes2.Oscilloscopesrangefromthebasic,orgeneral-purposetypes,tothespecial-purposetype.

示波器包括從通用示波器到專用示波器的多種類型?！皉angefrom”意為“從...到...變動”或“從...到...范圍”例如：

Thechildren'sagesrangefrom8to15.

這些孩子們的年齡在8歲到15歲之間。2.Oscilloscopesrangefromthe3.Thegeneralpurposeoscilloscopeissuitablefor

anyoftheusualapplicationsinservicingcommunications,scientific,orindustrialworkwherethefrequencyofthesignaltobeobserveddoesnotgreatlyexceed500kHz.

通用示波器適用于通信、科學(xué)研究、工業(yè)生產(chǎn)等各個領(lǐng)域，用來觀察頻率不超過500kHz以上的電子信號?！癷n”意為“在……方面”或“在……領(lǐng)域”3.Thegeneralpurposeoscillos4.Horizontalsweepisatermreferringtotheactionofthehorizontalsystemcausingtheglowingdottomoveacrossthescreen.

水平掃描是這樣的術(shù)語，它指水平系統(tǒng)使光點沿水平方向掃過屏幕?！皌erm”意為“術(shù)語”，而“referring”是動詞現(xiàn)在分詞，作后置定語。4.Horizontalsweepisatermr5.Thetriggerisnecessarytostabilizearepeatingsignal.Itensuresthatthesweepbeginsatthesamepointofarepeatingsignal,resultinginaclearpictureasshowninFigure3-4（b）.

穩(wěn)定重復(fù)顯示的波形需要觸發(fā)。它保證掃描在同一點開始重復(fù)顯示波形，使波形如圖3-4（b）所示清晰地顯示?！皉esultingin……”是動詞現(xiàn)在分詞作為伴隨狀語?！皉esultingin”意為“導(dǎo)致”，表結(jié)果。例如：

SometimesIpay,sometimeshepaysitseemstoaverageout(ieresultinafairbalance)intheend.

有時我付錢,有時他付錢--到頭來似乎兩相抵銷。5.ThetriggerisnecessarytoTranslationofTextsLesson12TheOscilloscopeOneofthemostimportantelectronictestandmeasuringinstrumentsistheoscilloscope.Itiswidelyusedin

designwork,trouble-shootingandsignalmonitoring,manufacturingandproduction-linetesting,andmanyotherapplicationswheretheobservationofanelectricalwaveformisdesired.TranslationofTextsLesson12第12課示波器示波器是最重要的電子測量儀器之一。它被廣泛地用于電子設(shè)計、故障探測、信號監(jiān)測、生產(chǎn)制造、流水線檢測及許多需要觀察電子信號波形的應(yīng)用場合。第12課示波器Oscilloscopesrangefromthebasic,orgeneral-purposetypes,tothespecial-purposetypes.Thegeneralpurposeoscilloscopeissuitablefor

anyoftheusualapplicationsinservicingcommunications,scientific,orindustrialworkwherethefrequencyofthesignaltobeobserveddoesnotgreatlyexceed500kHz.Oscilloscopesrange

示波器的類型包括通用示波器和專用示波器。通用示波器適用于通信、科學(xué)研究、工業(yè)生產(chǎn)等各個領(lǐng)域，用來觀察頻率不超過500kHz以上的電子信號。示波器的類型包括通用示波器和專用示波器。Fig.12-1isasimpleblockdiagramthatshowshowananalogoscilloscopedisplaysameasuredsignal.Whenyouconnectanoscilloscopeprobetoacircuit,thevoltagesignaltravelsthroughtheprobetotheverticalsystemoftheoscilloscope.Fig.12-1isasimpl

圖12-1是一個簡單的方框圖，表示了模擬示波器是如何顯示被測信號的。當(dāng)你把示波器探頭連上電路，電壓信號則通過探頭進入示波器的垂直系統(tǒng)。圖12-1是一個簡單的方框圖，表示了模擬Thesignaltravelsdirectlytotheverticaldeflectionplatesofthecathoderaytube(CRT).Voltageappliedtothesedeflectionplatescausesaglowingdottomove.(AnelectronbeamhittingphosphorinsidetheCRTcreatestheglowingdot.)Apositivevoltagecausesthedottomoveupwhileanegativevoltagecausesthedottomovedown.Dependingonhowyousettheverticalscale(volts/divcontrol),anattenuatorreducesthesignalvoltageoranamplifierincreasesthesignalvoltage.Thesignaltravelsd

信號直接進入陰極射線管（CRT）的垂直偏轉(zhuǎn)板。加在這個偏轉(zhuǎn)板上的電壓使光點運動。（電子束撞擊CRT內(nèi)的熒光屏上產(chǎn)生光點）。正電壓使光點向上運動，而負(fù)電壓使光點向下運動。衰減器減小顯示的信號電壓或放大器增大顯示的信號電壓，取決于你如何調(diào)節(jié)垂直偏轉(zhuǎn)旋鈕（volts/div控制旋鈕）。信號直接進入陰極射線管（CRT）的垂直偏Thesignalalsotravelstothetriggersystemtostartortriggera"horizontalsweep".Horizontalsweepisatermreferringtotheactionofthehorizontalsystemcausingtheglowingdottomoveacrossthescreen.Triggeringthehorizontalsystemcausesthehorizontaltimebasetomovetheglowingdotacrossthescreenfromlefttorightwithinaspecifictimeinterval.Thesignalalsotrav

信號還進入觸發(fā)系統(tǒng)開始或觸發(fā)“水平掃描”。水平掃描是指水平系統(tǒng)使光點沿水平方向掃過屏幕。對水平系統(tǒng)的觸發(fā)使水平時基電路在專門的時間間隔內(nèi)讓光點從左至右掃過屏幕。信號還進入觸發(fā)系統(tǒng)開始或觸發(fā)“水平掃描”Thetriggerisnecessarytostabilizearepeatingsignal.Itensuresthatthesweepbeginsatthesamepointofarepeatingsignal,resultinginaclearpictureasshowninFigure12-2（b）.Thetriggerisnece

穩(wěn)定重復(fù)顯示的波形需要觸發(fā)系統(tǒng)。它保證掃描在同一點開始重復(fù)顯示波形，使波形如圖12-2（b）所示清晰地顯示。穩(wěn)定重復(fù)顯示的波形需要觸發(fā)系統(tǒng)。它保證掃Inconclusion,touseananalogoscilloscope,youneedtoadjustthreebasicsettingstoaccommodateanincomingsignal:Theattenuationoramplificationofthesignal.Usethevolts/divcontroltoadjusttheamplitudeofthesignalbeforeitisappliedtotheverticaldeflectionplates.Inconclusion,tous

總之，使用模擬示波器時，為了完全顯示連續(xù)出現(xiàn)的信號波形，需要調(diào)節(jié)三個基本按鍵：衰減或增大信號：使用“volts/div”控制鍵，以便在信號還未加到垂直偏轉(zhuǎn)板之前調(diào)節(jié)信號的振幅。總之，使用模擬示波器時，為了完全顯示連續(xù)Thetimebase.Usethesec/divcontroltosettheamountoftimeperdivisionrepresentedhorizontallyacrossthescreen.Thetriggeringoftheoscilloscope.Usethetriggerleveltostabilizearepeatingsignal.Thetimebase.Usethe

時基：使用“sec/div”控制鍵，設(shè)置屏幕水平方向每格所代表的時間長短。示波器的觸發(fā)：使用“觸發(fā)電平”控制鍵穩(wěn)定重復(fù)顯示的信號。時基：使用“sec/div”控制鍵，設(shè)置屏幕水Also,adjustingthefocusandintensitycontrolsenablesyoutocreateasharp,visibledisplay.Fig12-3isdiagramofoscilloscope’spanel.Also,adjustingthe

還可以調(diào)節(jié)聚焦和亮度控制旋鈕，以保證顯示的波形尖銳和可以看見。圖12－3為示波器的面板圖。還可以調(diào)節(jié)聚焦和亮度控制旋鈕，以保證顯示Exercises1.WriteT(True)orF(False)besidethefollowingstatementsaboutthetext.Exercisesa.Thegeneralpurposeoscilloscopeissuitablefor

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