R&S UPA3音频分析仪罗德与施瓦茨Rohde&Schwarz
厂家: 德国罗德与施瓦茨Rohde & Schwarz
- 频率范围: 10 Hz - 100 kHz
- 按照DIN CCIR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DIN CCIR IEC NAB JIS
- 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最佳配置。
- 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
Voltage measurment range 10μV to300V,unbalanced
10μV to35V balanced
Frequency range 10Hzto 100kHz
22.4Hz and 300Hz highpass filters
CCIR,CCITT
Other filters contained in option UPA-B2
Test inputs floating
Balanced two 3-contact female connectors switch able R/Lchannel,600Ω/20kΩ
Unbalance rejection >110dBat 50Hz
Unbalanced two BNC female connectors switch able R/Lchannel,1MΩ
Crosstalk attenution R/L >80dB at 20kHz
Detector RMS-responding rectifier quasi-peak respondingrectifier
Level indication 5digits in mV,V dBm mW or W relative indicationin % or dB
Accuracy RMS(sine wave) ±1%±1digit(30Hz to 20kHz)
Inherent noise
CCIR,weighted(QPK) <10μV(unbalanced,600Ω)
<20μV(balanced,600 Ω) - 失真测量(with GeneratorOption UPA-B6)
Signal frequencyrange 30Hz to100kHz
Display range 0 to 120dB
Accuracy(S/N ≤60dB) ±1dB
Inherent S/N ration ±85dB or <20μV
DC voltage measurment 0 to ±300V
Test inputs see AF level meter but unbalanced only
Accuracy ±1%±1digit
Frequency counter
Frequency measuremnt range 8Hz to 250kHz
Required input vltage >10mV (S/N ratio>20dB)
Accuracy ±0.005%±1digit
Phase measurement
Display range 0 to 180°
Resolution 0.1°
选件
- 发生器option UPA-B6(UPA3 标配)
Frequency range 10Hz to 100(110)kHz
Accuracy ±0.01%
Outputs like test inputs of AF level meter
Unbalance rejection >80dB at 1kHz (bal,Vout >1)
Crosstalk attenuation L/R >80 dB at 20kHz
Output impedance 30Ω/200Ω/600Ω select able
Output voltage no load 0.1mV to 12.4V
Load impedancemax.load >200Ω/54mA
Output circuit short-circuit-proof switched off incase of externalfeeding
Inherent distortion(Vout>300mV) <-80 dB(30Hz to20kHz)
Frequency response(fer.to 1kHz) ±0.5% (10Hz to20kHz) - 失真表option UPA-B8(UPA3 标配)
Frequency range fundamental 10Hz to100kHz
Frequency adjustment automatic or by frequencypreselection
Display modes toal harmonic distortion THD,selective distortion d2to d9 SINAD,level
Display range -120 to 0dB(distortion)
Accuracy THD or SINAD,20Hz to 20kHz ±1dB(harmonics up to100kHz) - Wow and flutter meter(optionUPA-B9)
Measurement methodIEC,NAB,JIS,2-sigma
Measurement range 0.003 to 5%
Accuracy ±10%
Amplitued variation meter
Frequency range 2 to 20kHz
Variation
Level 0to 20dB
Frequency 0.1 to 300Hz
Accuracy ±0.25dB (0 to 3dB) - Special filter(optionUPA-B2)
A-filter to DIN IEC 651
Bandstop filters pilot-tone trap with 15kHz lowpass filterline-frequency trap with 13kHz LP(both filters can be combined withA=filter)
Band pass jilters standard frequencies 315Hz/1/3.15/6.3/10/12.5kHzadditionally adjustable fixed center frequencies of8/9/10/11/12/13/14/15/15.5/1/17/18/19/20/25kHz adjustable passbandfrequenciesfrom 23Hz to 25kHz tele phon band pass filter 320Hz to3.4kHz band pass filter 2to 10kHz
Lowpass filter 350Hz/1.04/3.5/7/10.4/15kHz - Remotecontrol IEC 625-1(IEEE 488 )control of allinstrument functions