VA-2230|KenwoodVA-2230|建伍VA2230|音频分析仪------------------邓生：13728874587特点·多功能，高精度，高速度，可遥控音频分析仪·此仪器综合了低频信号发生器、电子电压表、失真表、频率计、直流电压表的功能于一身。***微处理器控制意味着可靠性更高，操作更简便，将众多的功能汇集在一个小型、高速、高精度的单元中，其价格比分立单元更具有竞争性。·使用DSP技术，通过FFT计算获得真RMS值·使用DDS技术的高速、高稳定度信号发生器·宽大的LCD提供了清晰***的显示·配备GPIB接口·为通讯应用提供了SINAD测量·双通道输入/输出可进行通道互扰、分离及L/R率测量·频率计及AC电平频率范围扩展至210KHz·具THD的失真及谐波分析功能·操作简便，测试功能丰富技术指标·SignalGenreatorforMeasurement·Frequencyrange.........5Hzto20.09KHz(DDSsystem)|20.1KHzto110.0KHz(CRoscillator)·Frequencysettingresolution........1Hz(5Hzto2.009KHz)|10Hz(2.01KHzto20.09KHz)|100Hz(20.1KHzto110.0KHz)·Frequencyaccuracy........&plu***n;0.005%(5Hzto20.09KHz)|&plu***n;3%(20.1Khzto110.0KHz)·Displaydigits........4-digitmax.·Spotoscillator.1.........20Hz(&plu***n;0.005%)·Spotoscillator.2..........1KHz(&plu***n;0.005%)·Spotoscillaotr.3..........20KHz(&plu***n;0.005%)·Outputchannels.........2CH(L,R:Onlycommonoutput)·Outputimpedance........600Ω&plu***n;2%(unbalanced)·Outputlevelresolution.......0.1dB·Outputlevelaccuracy........Ω&plu***n;0.5dBofsetvalue(>-40dBv)|&plu***n;0.8dBofsetvalue(≦-40dBV)1KHz,600Ωload·Spotoscillator.1..........20Hz(0.001%THD+N,80KBW)·Spotoscillator.2........1KHz(0.001%THD+N,80KBW)·Spotoscillator.3............20KHz(0.001%THD,80KBW)·Measurementfunctionblock·Frequencymeasurement,AClevelmeasurement(relativedisplay/wattagedisplay),DClevelmeasurement,totaldistortionmeasuremetn(THD+N),harmonicdistortionmeasuremtn(THD),harmonicanalysismeasurement(HD),SINADmeasurement,S/Nmeasurement,ratiomeasruemtn(R/L,L/R).··Measuringrange......5Hzto210KHz·Measurementresolution...........5-digit(≧100Hz)/0.01Hz(<100Hz)·Measuringaccuracy..........&plu***n;5*10^-4&plu***n;1digit·Inputlevelrange......1mVto100Vrms)