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1、川大《计算机控制系统2380》13春在线作业2(Sichuancomputercontrolsystem13spring2380onlinehomework2)Sichuan"computercontrolsystem"13spring2380onlinehomework2Inspring13andautumn14,therewerescoresoftestpapers:100testtime:-RadioexaminationAmultiple-choicequestionThereare16qu
2、estions(48points)1.,theso-calledreal-time,referstotheinput,calculationandoutputofthesignaltobecompletedwithinthetimerange.A.microsecondlevelB.nslevelC.mslevelD.sureFullScore:3pointsTheresolutionofthe2.16bitA/Dconversionis().A.0.0000305B.0.0000152C.0.00
3、00076D.0.000192FullScore:3points3.()isadevicethatconvertsprocessparametersintoelectricalparameters.A.sensorB.A/DconverterC.D/AconverterD.transformerFullScore:3points4.theinformationfieldtransmittedthroughaninformationframeisthesubstantialcontentoftheco
4、mmunication,thatis,()A.applicationlayerB.messagelayerC.physicallayerD.linklayerFullScore:3points5.thelowerthedisturbancefrequencyofexternalinterference,thelongerthesamplingperiodofsignalacquisitionis.A.longB.shortC.simpleD.complexityFullScore:3points6.
5、intheactualproductionprocess,becausefeedforwardcontrolisa(),therefore,veryfewuseonlyfeedforwardcontrolscheme,andoftenusefeedforwardfeedbackcontrolschemeA.openloopsystemB.closedloopsystemC.stabilizationsystemD.unstablesystemFullScore:3points7.inamultipa
6、rametercontrolsystemwithinteraction,Ringingislikelytoaffectthesystem's()A.reliabilityB.stabilityC.economyD.versatilityFullScore:3points8.intheprocessofprogramdesign,theprogramdesignerselectsanappropriatehigh-level(orassembly)language,andwritestheprogra
7、mstepscalled()A.compilationB.programmingC.debuggingD.encodingFullScore:3points9.ifthelineOAofthefirstquadrantisdesignedandthestartingpointisO(0,0),thecoordinateoftheendpointisA(7,4),thentheresultofinterpolationisthatthenumberofstepsin+Xdirectionshouldb
8、e().A.5B.6C.7D.8FullScore:3points10.,theso-calledquantizationistouseasetofdigitaltoapproximatetheamplitudeofdiscreteanalogsignals,andconvertitto().A.analogsignalB.digitalsignalC.programcodeD.quantizationcodeFullScore:3points11.CNCsystem