浅议外文文献翻译

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1、浅议外文文献翻译浅议外文文献翻译导读：aracteristicsSupplyVoltage:.............+/-5V(Symmetrical)Poents:.....200mA(maximum)Measuringrange:..........+/-0-1,999VDCinfourrangesAccuracy:.......................0.1%FEATURESSmallsizeEasyconstructionLopleadjustment.Easytoreadfromadista学号：14092500090

2、物理与电子学院2014届毕业设计外文文献翻译数字电压表技术学生李开栋专业：电子科学与技术指导教师：黄重庆完成时间：2014年5月文献名称：TheDVMtechnologyTheDVMtechnologyFrontsideCopyrightofthiscircuitbelongstosmartkitelectronics.InthispageprovementsandechangesbasedonoriginalschematicGeneralDescriptionThisisaneasytobuild,butneverthelessver

3、yaccurateandusefuldigitalvoltmeter.IthasbeendesignedasapanelmeterandcanbeusedinDCpoploystheADC(AnaloguetoDigitalConverter)I.C.CL7107madebyINTERSIL.ThisICincorporatesina40pincaseallthecircuitrynecessarytoconvertananaloguesignaltodigitalandcandriveaseriesoffoursevensegmentL

4、EDdisplaysdirectly.ThecircuitsbuiltintotheICareananaloguetodigitalconverter,aparator,aclock,adecoderandasevensegmentLEDdisplaydriver.ThecircuitasitisdescribedherecandisplayanyDCvoltageintherangeof0-1999Volts.TechnicalSpecifications-CharacteristicsSupplyVoltage:...........

5、..+/-5V(Symmetrical)Poents:.....200mA(maximum)Measuringrange:..........+/-0-1,999VDCinfourrangesAccuracy:.......................0.1%FEATURESSmallsizeEasyconstructionLopleadjustment.Easytoreadfromadistance.Feportantfeatures:Greataccuracy.Itisnotaffectedbynoise.1Noneedforas

6、ampleandholdcircuit.Ithasabuilt-inclock.Ithasnoneedforhighaccuracyexternalponents.Schematic(fixed16-11-09)7-segmentdisplaypinoutMAN6960AnAnaloguetoDigitalConverter,(ADCfromnoplicityindesignandarelativeindifferencetonoiseakesitveryreliable.Theoperationofthecircuitisbetteru

7、nderstoodifitisdescribedintwostages.Duringthe2firststageandforagivenperiodtheinputvoltageisintegrated,andintheoutputoftheintegratorattheendofthisperiod,thereisavoltagewhichisdirectlyproportionaltotheinputvoltage.Attheendofthepresetperiodtheintegratorisfedwithaninternalref

8、erencevoltageandtheoutputofthecircuitisgraduallyreduceduntilitreachesthelevelofthezeroreferencev