2026年工程测试技术双语测试题及答案

2026年工程测试技术双语测试题及答案

一、单项选择题（总共10题，每题2分）1.Inengineeringtestingtechnology,whichofthefollowingisnotacommonsignaltype?A.AnalogsignalB.DigitalsignalC.RandomsignalD.Staticsignal2.Themainfunctionofasensorinengineeringtestingistoconvert().A.MechanicalquantityintoelectricalquantityB.ElectricalquantityintomechanicalquantityC.LightquantityintoelectricalquantityD.Soundquantityintoelectricalquantity3.Whichofthefollowingisnotacharacteristicofalinearsystem?A.SuperpositionprincipleB.HomogeneityC.Time-invarianceD.Non-linearity4.Theprocessofreducingthenoiseinasignaliscalled().A.SignalamplificationB.SignalfilteringC.SignalmodulationD.Signaldemodulation5.Infrequency-domainanalysis,theFouriertransformismainlyusedto().A.Convertatime-domainsignalintoafrequency-domainsignalB.Convertafrequency-domainsignalintoatime-domainsignalC.AnalyzetheamplitudeofasignalD.Analyzethephaseofasignal6.Theresolutionofameasuringinstrumentrefersto().A.ThesmallestchangeinthemeasuredquantitythatcanbedetectedB.TheaccuracyofthemeasurementC.TherangeofthemeasurementD.Therepeatabilityofthemeasurement7.Whichofthefollowingisnotamethodforcalibratingameasuringinstrument?A.ComparisonwithastandardinstrumentB.Self-calibrationC.CalibrationbyamanufacturerD.Calibrationbyauser8.Instrainmeasurement,thestraingaugeworksbasedonthe()effect.A.PiezoelectricB.PhotoelectricC.Resistance-strainD.Capacitive9.Themainpurposeofusingabridgecircuitinmeasurementisto().A.AmplifythesignalB.ConverttheresistancechangeintoavoltagechangeC.FilterthenoiseD.Modulatethesignal10.Whichofthefollowingisnotatypeofvibrationmeasurement?A.DisplacementmeasurementB.VelocitymeasurementC.AccelerationmeasurementD.Temperaturemeasurement二、填空题（总共10题，每题2分）1.Engineeringtestingtechnologyisthetechnologyofmeasuringandanalyzingvariousphysicalquantitiesinengineering,including(),(),(),etc.2.Asensorisadevicethatcansensethe()andconvertitintoa()thatcanbemeasuredorprocessed.3.Thecharacteristicsofalinearsysteminclude(),(),and().4.Signalfilteringistheprocessofremoving()fromasignal.5.TheFouriertransformcanconverta()signalintoa()signal.6.Theaccuracyofameasuringinstrumentisthedegreeofagreementbetweenthe()andthe().7.Calibrationistheprocessofdeterminingthe()ofameasuringinstrumentbycomparingitwitha().8.Instrainmeasurement,thestraingaugeisusuallybondedtothe()oftheobjecttobemeasured.9.Abridgecircuitiscomposedof(),(),(),and().10.Vibrationmeasurementcanbeusedtodetect(),(),(),etc.三、判断题（总共10题，每题2分）1.Analogsignalsarecontinuoussignals,whiledigitalsignalsarediscretesignals.()2.Asensorcanonlyconvertonetypeofphysicalquantityintoanelectricalquantity.()3.Alinearsystemmustsatisfythesuperpositionprinciple.()4.Signalfilteringcanonlybeusedtoremovehigh-frequencynoise.()5.TheFouriertransformcanonlybeusedforperiodicsignals.()6.Theresolutionofameasuringinstrumentisthesameasitsaccuracy.()7.Calibrationisonlynecessaryfornewmeasuringinstruments.()8.Instrainmeasurement,thestraingaugecanmeasurebothtensilestrainandcompressivestrain.()9.Abridgecircuitcanonlybeusedforresistancemeasurement.()10.Vibrationmeasurementcanonlybeusedformechanicalsystems.()四、简答题（总共4题，每题5分）1.Whatarethemainfunctionsofengineeringtestingtechnology?2.Whatarethecharacteristicsofalinearsystem?3.Whatisthepurposeofsignalfiltering?4.Whatistheprincipleofstrainmeasurementusingastraingauge?五、讨论题（总共4题，每题5分）1.Discusstheimportanceofengineeringtestingtechnologyinengineering.2.Discusstheadvantagesanddisadvantagesofdifferenttypesofsensors.3.Discusstheapplicationofsignalfilteringinengineeringtesting.4.Discussthedevelopmenttrendofengineeringtestingtechnology.答案：一、单项选择题1.D2.A3.D4.B5.A6.A7.B8.C9.B10.D二、填空题1.force,displacement,temperature2.measuredquantity,electricalquantity3.superpositionprinciple,homogeneity,time-invariance4.noise5.time-domain,frequency-domain6.measuredvalue,truevalue7.accuracy,standard8.surface9.resistors,voltagesource,currentsource,outputterminal10.mechanicalfaults,structuraldamage,environmentalvibration三、判断题1.√2.×3.√4.×5.×6.×7.×8.√9.×10.×四、简答题1.Engineeringtestingtechnologycanmeasurevariousphysicalquantitiesinengineering,providedatasupportforengineeringdesign,manufacturing,andoperation,andhelpengineersunderstandtheworkingstateandperformanceofengineeringsystems.2.Alinearsystemsatisfiesthesuperpositionprinciple,homogeneity,andtime-invariance.Thatis,iftheinputsignalsare\(x_1(t)\)and\(x_2(t)\),andthecorrespondingoutputsignalsare\(y_1(t)\)and\(y_2(t)\),thenforanyconstants\(a\)and\(b\),theinput\(ax_1(t)+bx_2(t)\)willresultintheoutput\(ay_1(t)+by_2(t)\).Also,iftheinputis\(x(t-t_0)\),theoutputis\(y(t-t_0)\)(time-invariance),andiftheinputis\(ax(t)\),theoutputis\(ay(t)\)(homogeneity).3.Thepurposeofsignalfilteringistoremoveunwantednoiseorinterferencefromasignal.Noisecandistortthesignalandaffecttheaccuracyofmeasurementandanalysis.Byfiltering,wecanretaintheusefulcomponentsofthesignalandimprovethesignal-to-noiseratio.4.Theprincipleofstrainmeasurementusingastraingaugeisbasedontheresistance-straineffect.Whenthestraingaugeissubjectedtostrain(tensileorcompressive),itsresistancechanges.Bymeasuringthechangeinresistance,wecancalculatethestrainoftheobjecttowhichthestraingaugeisbonded.五、讨论题1.Engineeringtestingtechnologyisofgreatimportanceinengineering.Itprovidesaccuratedataforengineeringdesign,helpsoptimizeproductperformance,ensuresproductquality,andcandetectpotentialproblemsinadvance.Forexample,inmechanicalengineering,itcanmeasurethestressandstrainofcomponentstoensuretheirsafetyandreliability.Incivilengineering,itcanmonitorthedeformationofbuildingstoensuretheirstability.2.Differenttypesofsensorshavetheirownadvantagesanddisadvantages.Forexample,piezoelectricsensorshavehighsensitivityandfastresponse,buttheyaresensitivetotemperature.Resistance-strainsensorsaresimpleinstructureandeasytouse,buttheyhavealimitedmeasurementrange.Photoelectricsensorsarenon-contactandhavehighaccuracy,buttheyareaffectedbylighti