类型:电子测量 品牌:德国罗德与施瓦茨 型号:UPA3 新旧程度:8成新 设备所在地:北京 设备生产产地:美国 产品数量:2

音频分析仪 UPA3

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*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*
• 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)
• *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*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*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 to 300V,unbalanced
  10μV to35V balanced
  Frequency range 10Hzto 100kHz
  22.4Hz and 300Hz highp* filters
  CCIR,CCITT
  Other filters contained in option UPA-B2
  Test inputs floating
  Balanced two 3-contact female connectors switch able R/L channel,600Ω/20kΩ
  Unbalance rejection >110dBat 50Hz
  Unbalanced two BNC female connectors switch able R/L channel,1MΩ
  Crosstalk attenution R/L >80dB at 20kHz
  Detector RMS-responding rectifier quasi-peak responding rectifier
  Level indication 5di*s in mV,V dBm mW or W relative indication in % or dB
  Accuracy RMS(sine wave) &plu*n;1%&plu*n;1di*(30Hz to 20kHz)
  Inherent noise
  CCIR,weighted(QPK) <10μV(unbalanced,600Ω)
  <20μV(balanced,600 Ω)
• 失真测量 (with Generator Option UPA-B6)
  Signal frequencyrange 30Hz to 100kHz
  Display range 0 to 120dB
  Accuracy(S/N ≤60dB) &plu*n;1dB
  Inherent S/N ration &plu*n;85dB or <20μV
  DC voltage measurment 0 to &plu*n;300V
  Test inputs see AF level meter but unbalanced only
  Accuracy &plu*n;1%&plu*n;1di*
  Frequency counter
  Frequency measuremnt range 8Hz to 250kHz
  Required input vltage >10mV (S/N ratio>20dB)
  Accuracy &plu*n;0.005%&plu*n;1di*
  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 &plu*n;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 external feeding
  Inherent distortion(Vout>300mV) <-80 dB(30Hz to 20kHz)
  Frequency response(fer.to 1kHz) &plu*n;0.5% (10Hz to 20kHz)
• 失真表 option UPA-B8 (UPA3 标配)
  Frequency range fundamental 10Hz to 100kHz
  Frequency adjustment automatic or by frequency preselection
  Display modes toal harmonic distortion THD,selective distortion d2 to d9 SINAD,level
  Display range -120 to 0dB(distortion)
  Accuracy THD or SINAD,20Hz to 20kHz &plu*n;1dB(harmonics up to 100kHz)
• Wow and flutter meter(option UPA-B9)
  Measurement method IEC,NAB,JIS,2-sigma
  Measurement range 0.003 to 5%
  Accuracy &plu*n;10%
  Amplitued variation meter
  Frequency range 2 to 20kHz
  Variation
  Level 0to 20dB
  Frequency 0.1 to 300Hz
  Accuracy &plu*n;0.25dB (0 to 3dB)
• Special filter(option UPA-B2)
  A-filter to DIN IEC 651
  Bands* filters pilot-tone trap with 15kHz lowp* filter line-frequency trap with 13kHz LP(both filters can be combined with A=filter)
  Band p* jilters standard frequencies 315Hz/1/3.15/6.3/10/12.5kHz additionally adjustable fixed center frequencies of 8/9/10/11/12/13/14/15/15.5/1/17/18/19/20/25kHz adjustable p*band frequenciesfrom 23Hz to 25kHz tele phon band p* filter 320Hz to 3.4kHz band p* filter 2to 10kHz
  Lowp* filter 350Hz/1.04/3.5/7/10.4/15kHz
• Remotecontrol IEC 625-1(IEEE 488 )control of all instrument functions

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