音频分析仪UPA3德国罗德与施瓦茨Rohde&Schwarz频率范围:10Hz-100kHz按照DINCCIR和CCITT标准进行噪声测量内置测量真有效值或准峰值的宽带电平表可同时测量电平和频率直流电压测量数字与模拟组合显示方式低失真和浮动输出的合成信号发生器(选件)用开关选择的发生器输出阻抗用于测量总谐波失真选频谐波失真的全自动失真度表或者信纳比表(选件)符合DINCCIRIECNABJIS标准的变音(wow)和颤音(flutter)测量表以及幅值波动表(选件)频率计和相位表可存储50套仪器设置的非易失存储器可在平衡和非平衡模拟音频接口上测量所有基本音频参数。选件众多，用户可针对应用对仪器进行***佳配置。各种滤波器选件可满足不同音频测量的需要。UPA3型是由UPA和一个信号发生器一个失真度表共同组成的高性价比测试装置。UPA具备远程控制功能(IEC625/IEEE488)，测量速度很快，可用于在生产流水线上对音频元器件进行自动测试。基础单元音频电压表Voltagemeasurmentrange10μVto300V,unbalanced10μVto35VbalancedFrequencyrange10Hzto100kHz22.4Hzand300HzhighpassfiltersCCIR,CCITTOtherfilterscontainedinoptionUPA-B2TestinputsfloatingBalancedtwo3-contactfemaleconnectorsswitchableR/Lchannel,600Ω/20kΩUnbalancerejection>110dBat50HzUnbalancedtwoBNCfemaleconnectorsswitchableR/Lchannel,1MΩCrosstalkattenutionR/L>80dBat20kHzDetectorRMS-respondingrectifierquasi-peakrespondingrectifierLevelindication5digitsinmV,VdBmmWorWrelativeindicationin%ordBAccuracyRMS(sinew***e)&plu***n;1%&plu***n;1digit(30Hzto20kHz)InherentnoiseCCIR,weighted(QPK)<10μV(unbalanced,600Ω)<20μV(balanced,600Ω)失真测量(withGeneratorOptionUPA-B6)Signalfrequencyrange30Hzto100kHzDisplayrange0to120dBAccuracy(S/N≤60dB)&plu***n;1dBInherentS/Nration&plu***n;85dBor<20μVDCvoltagemeasurment0to&plu***n;300VTestinputsseeAFlevelmeterbutunbalancedonlyAccuracy&plu***n;1%&plu***n;1digitFrequencycounterFrequencymeasuremntrange8Hzto250kHzRequiredinputvltage>10mV(S/Nratio>20dB)Accuracy&plu***n;0.005%&plu***n;1digitPhasemeasurementDisplayrange0to180°Resolution0.1°选件发生器optionUPA-B6(UPA3标配)Frequencyrange10Hzto100(110)kHzAccuracy&plu***n;0.01%OutputsliketestinputsofAFlevelmeterUnbalancerejection>80dBat1kHz(bal,Vout>1)CrosstalkattenuationL/R>80dBat20kHzOutputimpedance30Ω/200Ω/600ΩselectableOutputvoltagenoload0.1mVto12.4VLoadimpedancemax.load>200Ω/54mAOutputcircuitshort-circuit-proofswitchedoffincaseofexternalfeedingInherentdistortion(Vout>300mV)<-80dB(30Hzto20kHz)Frequencyresp***e(1kHz)&plu***n;0.5%(10Hzto20kHz)失真表optionUPA-B8(UPA3标配)Frequencyrangefundamental10Hzto100kHzFrequencyadjustmentautomaticorbyfrequencypreselectionDisplaymodestoalharmonicdistortionTHD,selectivedistortiond2tod9SINAD,levelDisplayrange-120to0dB(distortion)AccuracyTHDorSINAD,20Hzto20kHz&plu***n;1dB(harmonicsupto100kHz)Wowandfluttermeter(optionUPA-B9)MeasurementmethodIEC,NAB,JIS,2-sigmaMeasurementrange0.003to5%Accuracy&plu***n;10%AmplituedvariationmeterFrequencyrange2to20kHzVariationLevel0to20dBFrequency0.1to300HzAccuracy&plu***n;0.25dB(0to3dB)Specialfilter(optionUPA-B2)A-filtertoDINIEC651Bandstopfilterspilot-tonetrapwith15kHzlowpassfilterline-frequencytrapwith13kHzLP(bothfilterscanbecombinedwithA=filter)Bandpassjiltersstandardfrequencies315Hz/1/3.15/6.3/10/12.5kHzadditionallyadjustablefixedcenterfrequenciesof8/9/10/11/12/13/14/15/15.5/1/17/18/19/20/25kHzadjustablepassbandfrequenciesfrom23Hzto25kHztelephonbandpassfilter320Hzto3.4kHzbandpassfilter2to10kHzLowpassfilter350Hz/1.04/3.5/7/10.4/15kHzRemotecontrolIEC625-1(IEEE488)controlofallinstrumentfuncti***详细介绍：电话：010-62123258邮箱：buy17@)