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。 中央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 ·Signal Genreator for Measurement ·Frequency range.........5Hz to 20.09KHz(DDS system) | 20.1KHz to 110.0KHz(CR oscillator) ·Frequency setting resolution........1Hz(5Hz to 2.009KHz) | 10Hz(2.01KHz to 20.09KHz) | 100Hz(20.1KHz to 110.0KHz) ·Frequency accuracy........±0.005%(5Hz to 20.09KHz) | ±3%(20.1Khz to 110.0KHz) ·Display digits........4-digit max. ·Spot oscillator.1.........20Hz(±0.005%) ·Spot oscillator.2..........1KHz(±0.005%) ·Spot oscillaotr.3..........20KHz(±0.005%) ·Output channels.........2CH(L,R:Only common output) ·Output impedance........600Ω±2%(unbalanced) ·Output level resolution.......0.1dB ·Output level accuracy........Ω±0.5dB of set ＆#118alue(>-40dBv) | ±0.8dB of set ＆#118alue(≦-40dBV) 1KHz,600Ω load ·Spot oscillator.1..........20Hz(0.001%THD+N,80KBW) ·Spot oscillator.2........1KHz(0.001%THD+N,80KBW) ·Spot oscillator.3............20KHz(0.001%THD,80KBW) ·Measurement function block ·Frequency measurement,AC level measurement(relative display/wattage display),DC level measurement,total distortion measuremetn(THD+N),harmonic distortion measuremtn(THD),harmonic analysis measurement(HD),SINAD measurement,S/N measurement,ratio measruemtn(R/L,L/R). · ·Measuring range......5Hz to 210KHz ·Measurement resolution...........5-digit(≧100Hz)/0.01Hz(<100Hz) ·Measuring accuracy..........±5＊10^-4±1digit ·Input level range......1mV to 100Vrms ·