春福师《电子测量与仪器》在线作业二满分答案（ spring fu division electronic measurement and instrument online homework two full answer）

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1、15春福师《电子测量与仪器》在线作业二满分答案（15springFudivisionelectronicmeasurementandinstrumentonlinehomeworktwofullanswer）AustrianPeng15springFudivision"electronicmeasurementandinstrument"onlinehomeworktwoTotalscore:100testtime:-RadioexaminationAmultiple-choicequestionJud

2、gmentquestionRadioexaminationquestions(20questions,40points)1.thefollowingarenotthebasicunitsoftheinternationalsystemofunits;().A.CD(CD)B.Kelvin(K)C.mol(mol)D.km(km)Fullmarks:22.samplingsignalmeans().A.amplitudecontinuityandtimediscretizationB.amplituded

3、iscretizationandtimecontinuityC.amplitudecontinuityandtimecontinuityD.amplitudediscretizationandtimediscretizationFullmarks:23.ahigh-precisioncrystaloscillatorusedinelectroniccounters,usuallytaking()measures.A.precisionregulatorB.selectcircuitcomponentsC

4、.constanttemperatureorwarmupD.eliminatesparasiticoscillationsFullmarks:2Thefrequencyatwhichthe4.frequencyquantizationerrorcurveandtheintersectionquantizationerrorcurveintersectarecalled().A.intersectionfrequencyB.criticalfrequencyC.centerfrequencyD.middl

5、efrequencyFullmarks:25.,theinformationoftheepistemologicallevelofthesubjectismuchricherthanthatoftheobjectepistemology.Notbecause:().ThesubjectofA.isimaginativeThesubjectthatB.knowshastheFacultyofperceptionThesubjectofC.hastheabilitytounderstandThesubjec

6、tthatD.knowshaspurposeFullmarks:26.whichofthefollowingmethodsdoesnotreducethequantizationerror:()mv/?.A.usesahighertimebasefrequencywhenmeasuringfrequencyB.usesahighertimebasefrequencyatthetimeofthecycleC.usesthemethodofmulticyclemeasurementsD.usestheave

7、ragemethodFullmarks:27..Therandomerrorofthesamequantityismeasuredseveraltimesinthesamecondition.A.absolutevaluesandsymbolschangeB.absolutevalueschange,andsymbolsremainconstantTheC.signchanges,andtheabsolutevalueremainsconstantD.absolutevaluesandsymbolsar

8、ekeptconstantFullmarks:2The8.modulationdomaindescribes()aplanardomainthatisjointlyformed.A.timeandamplitudeB.timeandfrequencyC.frequencyandamplitudeD.timeandphaseFullmarks:29.theresolvingpowerofthedirectdigitalmeasuringmac