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1、毕业设计(论文)外文资料翻译系别：电子信息系专业：通信工程班级：B090310姓名：王海涛学号：B09031018外文出处：annulreviews附件：1.原文；2.译文2013年06月SignalgeneratorSignalgeneratorisreferstoproducetheparametersofelectrictestingsignalequipment.Accordingtothesignalwaveform,thefunctioncanbedividedintosinesignal(waveform
2、)signal,pulsesignalandrandomsignalgeneratorandsoonfourcategories.Signalgeneratoralsocalledsourceoroscillator,inproductionpracticeandscienceandtechnologyhasbeenwidelyusedinthefield.Variouswaveformcurvecanberepresentedwithtrigonometricfunctionequation.Canproduceva
3、riouswaveform,suchastrianglewave,sawtoothwave,rectanglewave(includingsquarewave),sinewaveofthecircuitiscalledafunctionsignalgenerator.Alsoknownasthesignalgenerator,whichisusedtoproducespecificparametersrequiredforthecircuitbeingmeasuredelectrictestingsignal.Inte
4、sting,research,oradjusttheelectroniccircuitsanddevices,measurementcircuitofsomeelectricparameters,suchasmeasuringthefrequencyresponse,noisecoefficient,forvoltmeter,etc,arerequiredtoconformtotheconditionssetbythetechnologyofelectricalsignals,tosimulateausedinthea
5、ctualworkofexcitationsignalofthedeviceundertest.Whentherequirementofsystemsteadystatecharacteristicsofthemeasurement,needtousesinesignalsourceofknownamplitudeandfrequency.Whenthetransientcharacteristicsofthetestingsystem,andtousefronttime,pulsewidthandrepetition
6、periodknownrectangularpulsesource.Andtheparametersofthesignalsourceoutputsignal,suchasfrequency,waveform,theoutputvoltage,orpower,canundercertain?WorkingprincipleofthesignalgeneratorSignalgeneratorisusedtoproducefrequencyof20hz~200KHZsinesignal(lowfrequency).Bes
7、ideshasthevoltageoutput,andpoweroutput.Sotheusageisverywide,canbeusedfortestingorrepairavarietyofelectronicinstrumentsandequipmentinthefrequencycharacteristicofthelowfrequencyamplifier,gain,passband,alsocanbeusedforoutermodulationsignalofhighfrequencysignalgener
8、ator.Inaddition,electronicvoltmeterincalibration,itcanprovideacvoltagesignal.Low-frequencysignalgenerator:theprincipleofthesystemincludingthemainvibrationlevel,themai
