音频分析仪agilent-hp-8903b

HP8903BAudioAnalyzerHP8903EDistortionAnalyzer20Hzto100kHzTheVersatileChoiceforAudioAnalysisTechnicalSpecificationsFeatures/MeasurementsHP8903BHP8903EAudioSource50/600WOutputImpedanceFullyProgrammableBalancedInputFrequencyCounterDistortionSINADACVoltsDCVoltsRMS/Average/Quasi-PeakDetectionPlug-inFiltersDistortionLevelSignal-To-NoiseSweep2FrontpanelMONITORoutputprovidesascaledoutputoftheinputsignal.InSINADanddistortionmodes,thefundamentalisremoved.LogSWEEPallowsmeasurementoffrequencyresponseandsweptdistortionautomatically.Specialfunctionscontroldetectorresponse:rms,average(rmscalibrated),andquasi-peakresponsesareavailable.NOTCHTUNEkeyallowstheusertolockthenotchfilteratanymeasuredinputfrequency.ThisisusefulwhenmeasuringverynoisysignalsindistortionandSINADmodes.AnalogmeterforSINADmodeprovideseasierreadingwhenmeasuringnoisy.signals.Frontpanelkeyallowsselectionofrmsoraverage(rmscalibrated)detectorresponse.Quasi-peakdetectorresponseavailableviaHP-IBprogramming.HP8903BAudioAnalyzerSpecialfunction47switchessourceOUTPUTIMPEDANCE-(50or600ohms)toprovidehigheroutputintolowerimpedanceloads(+17dBminto600ohmsin50ohmposition).Audiosourceoutputlevelfrom0.6mVto6Vopencircuit,20Hzto100kHz.HP8903EDistortionAnalyzerRATIOkeypermitsdisplayindBorpercentrelativetoanenteredormeasuredvalue.LOG/LINkeyallowsresultstobedisplayedinlinearorlogunits.LogmodedisplaysreadingsindBminto600ohmswhenmeasuringAClevel.Low-noiseinputamplifierprovidessuperioranalyzerperformance.Balanced(full-differential)inputallowstestingofbridgedamplifiersandotherdeviceswithfloatingoutputs.Maximuminputvoltageisafull300volts,differentialorappliedtoeitherthehighorlowinputRATIOkeypermitsdisplayindBorpercentrelativetoanenteredormeasuredvalue.LOG/LINkeyallowsresultstobedisplayedinlinearorlogunits.LogmodedisplaysreadingsindBminto600ohmswhenmeasuringaclevel.Low-noiseinputamplifierprovidessuperioranalyzerperformance.Balanced(full-differential)inputhasamaximuminputvoltageof300voltsdifferentiallyorappliedfromthehighinputtoground,and30voltsappliedfromthelowinputtoground.Plug-infiltersaddmeasurementflexibilitytotheHP8903BandHP8903E.Bothinstrumentshavetwoslotswhichcanbefilledwithanycombinationofsixoptionalfilters.HP-IBNotjustIEEE-488,butthehardware,documentationandsupportthatdeliverstheshortestpathtoameasurementsystem.Plug-infiltersaddmeasurementflexibilitytotheHP8903BandHP8903E.Bothinstrumentshavetwoslotswhichcanbefilledwithanycombinationofsixoptionalfilters.3TransceiverTestsBoththeHP8903BandHP8903Ehavebeenoptimizedforreceivertesting.ForSINADmeasurements,extrafilteringandsmoothingcircuitsyieldmoreaccurateandrepeatableresults.Withitsbuilt-insource,theHP8903Bmakessignal-to-noisemeasurementsonAMreceiversusingsimilarsmoothingtechniques.Transmittertestingisalsoeasy.InconjunctionwiththeHP8901A,HP8901B,orHP8902Amodulationanalyzersyoucanmeasuretransmitterdistortion,frequencyresponse,andcountsquelchtones.TheHP8903Balsoprovidestheaudiotonestomodulatethetransmitter.AudioApplicationsTheHP8903BAudioAnalyzerandHP8903EDistortionAnalyzermakeyouraudiomeasurementsfastandeasy.Theanalyzersautomaticallytuneandautorangeformaximumaccuracyandresolution.Distortion,frequencyresponse,acanddcvoltagemeasurementsareonlyasinglekeystrokeaway.Withabuilt-inlowdistortionaudiosource,theHP8903Bisideallysuitedtostimulus-responseapplications.MicroprocessorcontrolofsourceandanalyzerallowstheHP8903Btoperformsweptmeasurements.Forapplicationswhereaseparatesourceisused,theHP8903Eisanideallower-costsolution.ATESystemsHP-IBcontrolofallmeasurementfunctionsmakesanalyzersvaluabletoolsforATEapplications.Theseanalyzerscombinethepowerofadigitalvoltmeter,frequencycounter,anddistortionanalyzerintooneinstrument.Sincethesefunctionsareallavailableatoneinputconnector,interfacingrequirements,hardwarecosts,andsoftwaredevelopmenttimearereduced.TheHP8903Balsoincludesalow-distortionprogrammableaudiosource.4VersatileTheHP8903BAudioAnalyzerandHP8903DDistortionAnalyzerprovideunparalleledversatilityandperformanceforaudiomeasurementsfrom20Hzto100kHz.Bothinstrumentscombinethefunctionalityofahigh-performancedistortionanalyzer,frequencycounter,acvoltmeter,dcvoltmeter,andSINADmeterintoonecompactpackage.Inaddition,theHP8903Bhasalow-distortionaudiosourcewhichallowsittoperformstimulus-responsemeasurements,suchassignal-to-noiseratio,automaticallywithnoadditionalequipment.SimpleForeaseofuse,mostmeasurementsaremadewithoneortwokeystrokes.Bothanalyzersautomaticallytuneandautorangeformaximumaccuracyandresolution.Forquickidentificationofinputsignals,theanalyzerscountanddisplaytheinputfrequencyinallacmeasurementmodes.TheHP8903Bcanalsomeasuredistortionofonesignalwhilegeneratinganotherfrequency,becauseanalyzertuningandsourcefrequencyareindependent.AccurateForaccuratemeasurementofcomplexwaveformsandnoise,theanalyzersusetrue-rmsdetection.Average(rmscalibrated)andquasi-peakdetectionarealsoavailableviafrontpanelcontrol,Accuratedistortionmeasurementscantypicallybemadedowntolessthan–90dB(0.003%)between20Hzand20kHz.Overthesamefrequencyrange,flatnessmeasurementsarepossibl