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      歡迎進(jìn)入深圳市測(cè)源電子儀器有限公司網(wǎng)站!
       咨詢(xún)電話:0755-82576720
      產(chǎn)品目錄

      產(chǎn)品資料

      音頻分析儀VA-2230
      產(chǎn)品型號(hào):
      簡(jiǎn)介:

      音頻分析儀 VA-2230:集低頻信號(hào)發(fā)生器、電子電壓表、失真表、頻率表、直流電壓表的功能于一身。使用DSP技術(shù),DDS高穩(wěn)定信號(hào)發(fā)生器,為通信應(yīng)用提供SINAD測(cè)量.22通道輸入輸出,GPIB接口.

      音頻分析儀VA-2230  的詳細(xì)介紹

      簡(jiǎn)單信息:
      集低頻信號(hào)發(fā)生器、電子電壓表、失真表、頻率表、直流電壓表的功能于一身。使用DSP技術(shù),DDS高穩(wěn)定信號(hào)發(fā)生器,為通信應(yīng)用提供SINAD測(cè)量.22通道輸入輸出,GPIB接口.
      產(chǎn)品簡(jiǎn)介
      特點(diǎn)
      ·多功能,高精度,高速度,可遙控音頻分析儀
      ·此儀器綜合了低頻信號(hào)發(fā)生器、電子電壓表、失真表、頻率計(jì)、直流電壓表的功能于一身。中央微處理器控制意味著可靠性更高,操作更簡(jiǎn)便,將眾多的功能匯集在一個(gè)小型、高速、高精度的單元中,其價(jià)格比分立單元更具有競(jìng)爭(zhēng)性。
      ·使用DSP技術(shù),通過(guò)FFT計(jì)算獲得真RMS值
      ·使用DDS技術(shù)的高速、高穩(wěn)定度信號(hào)發(fā)生器
      ·寬大的LCD提供了清晰**的顯示
      ·配備GPIB接口
      ·為通訊應(yīng)用提供了SINAD測(cè)量
      ·雙通道輸入/輸出可進(jìn)行通道互擾、分離及L/R率測(cè)量
      ·頻率計(jì)及AC電平頻率范圍擴(kuò)展至210KHz
      ·具THD的失真及諧波分析功能
      ·操作簡(jiǎn)便,測(cè)試功能豐富

      技術(shù)指標(biāo)
      ·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
      value(>-40dBv) | ±0.8dB of set value(≦-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
      ·



      Measuring range....... V(mV) dBV dBm
        100V 40.0dBV 42.2dBm
        30V 29.5dBV 31.7dVm
        10V 20.0dBV 22.2dBm
        3V 9.5dBV 11.7dBm
        1V 0.0dBV 2.2dBm
        300mV -10.5dBV -7.8dBm
        100mV -20.0dBV -17.8dBm
        30mV -30.5dBV -27.8dBm
        10mV -40.0dBV -37.8dBm
        3mV -50.5dBV -47.8dBm
        1mV -60.0dBV -57.8dBm
        0.3mV -70.5dBV -67.8dBm
      Measuring accuracy.............. ±2%of full-scale indication(1KHz)
      Frequency response........ ±5%(20Hzto 20KHz) reference:1KHz

      ±10%(5Hz
      to 110KHz)reference:1KHz

      ±20%(5Hz to210KHz) reference:1KHz
      Vestigial noise............ ≦4μV(80KBW)
      Response characteristics.... actual value
      Relative measurement range..... 0 to±130dB
      Wattage display...... Powercalculation based on AC level


      measurement and virtual load(RL)
      Resolution of watt display. 5digits max.
      Setting range of RL.... 2 to 5000Ω
         
      Input channel...... 1CH:for DC input
      Input impedance 1MΩ
      DClevel measuring ranges.. 5 ranges(100V/30V/3V/300mV/30mV)
      DC level emasuring accuracy ±(0.3%fs+0.75%of measuring value)
       
      Fundamental frequencyrange 10Hz to 110KHz
      Distortionmeasurement range 100% 0.0dB
        30% -10.5dB
        10% -20.0dB
        3% -30.5dB
        1% -40.0dB
        0.3% -50.5dB
        0.1% -60.0dB
        0.03% -70.5dB
        0.01% -80.0dB
      Secondary harmonic deviation.... ±1dB(20Hzto 20KHz)
        ±3dB(all range)
      Fundamental wave removal ratio.. 110dBor more
        60dB(NOTCH)+ - 50dB(FET)
      Response characteristics  
      (input)......... actual value
      Response charateristics  
      (distortion).... actualvalue
      Input level range..... 1mVto 100V
      Input ranges..... V(mV) dBV dBm
        100V 40.0dBV 42.2dBm
        30V 29.5dBV 31.7dBm
        10V 20.0dBV 22.2dBm
        3V 9.5dBV 11.7dBm
        1V 0.0dBV 2.2dBm
        300mV -10.5dBV -7.8dBm
        100mV -20.0dBV -17.8dBm
        30mV 30.5dBV -27.8dBm
        10mV -40.0dBV -37.8dBm
        3mV -50.5dBV -47.8dBm
        (30mV to 3mV ranges:manual only)
      Display units..... Input level:V,dBV,dBm
        Distortion:%,dB
         
      Measuringmode.. harmonic distortion+noise(THD+N)
      Residualnoise/distortion  
      (100V,30V,10V,3V&1Vranges).. ≦-94dB(10Hz to 20KHz,80KBW)
        ≦-80dB(alllimits,500KBW)
        input≧1/3 offull scale
      (300mV range)...... ≦-86dB(10Hzto 20KHz,80KBW)
        ≦-66dB(alllimits,500KBW)
        input≧1/3 offull scale
      (100mV range)..... ≦-74dB(10Hzto 20Khz,80KBW)
        ≦-60dB(allilmits,500KBW)
        input≧1/3 offull scale
      (3mV range)...... ≦-45dB(10Hzto 10KHz,20KBW)
        input+2mVrms
       
      Measuringmode..... Nos.2-10 harmonic waves are detected
      and
      measured
      Residual noise/distortion  
      (100V,30V,10V,3V&1V range)... ≦-100dB(10Hzto 20Khz,80KBW)
        ≦-80dB(alllimits,500KBW)
        input≧1/3 offull scale
      (300mV range)..... ≦-94dB(10Hzto 20KHz,80KBW)
        ≦-74dB(alllimits,500KBW)
        input≧1/3 offull scale
      (100mV range)........ ≦-86dB(10Hzto 20KHz,80KBW)
        ≦-74dB(alllimits,500KBW)
        input≧1/3 offull scale
         
      Measuring mode..... Nos.2-10 harmonicwaves are set to
      any value
      and measured Residual
         
      SINAD measuringrange..... 0 to 40dB(1 range)
      ResidualSINAD....... Same as
         
      Input levl...... 30μV to 100Vrms
        (both S component&N component)
      Measuring range...... 0 to 130dB(80KHzBW)
      S/N accuracy........ ±1.2dB
      Response characteristics..... actualvalue
         
      Input level ragne..... 30μV to 100Vrms(bothnumerator and
      denominator)
      Ratio range....... 0to ±130dB(80KHzBW_
      Ratio accuracy......... ±1.2dB(1KHz,fullscale input)
      Frequency response...... ±2dB(standard:1KHz)
      Display unit...... dB,%
      Response characteristics... actual value
       
      Input channels...... AC input:2 CHs,alternate(Balanced
      and
      unbalanced switchable)
      Input impedace...... ACinput:10KΩ,100KΩ≦200pF
      Maximum allowable input.... 150V(DC+AC peak)
      Grounding...... Floatingand non-floating switchable(independently
      for DC,AC and signal generator)
      Averaging count..... 2,4,8,16,OFF
      Built-in filters...... HPF(100Hz/200Hz/Optional),LPF(15KHz/20KHz/80KHz/Optional),PSOPHO(IHF-A/CCIR-ARM/DIN-AUDIO/Optional)
      Optional filters...... 3KHz BPF/1KHzBPF/315Hz BPF/CCITT
      P53TEL/C-MESSAGE/IEC-C
         
         
      Operation specifications... 1)Single Up;2)Single Down;
        3)RepeatUp;4)Repeat Down
      .... SH1,AH1,T8,L4,SR0,RL1,PP0,DC1,DT1,C1,C2,C3,C27
        1)Panel staus;2)Measurement value
      output;3)Memorycopy(between same models);4)Memory synchronization(between
      same models,same versions)
      ... 1) Levelor frequency setting from
      an external
      rotary encoder;2)Direct memory call;3)Controloutput;4)Limit
      judgment
      output;5)Memory listing;6)8-bit data read;7)Measurementdata
      print-out.
         
      Memory point count... 100 steps(Can bedivided into 10 groups.)
      Setting contents... 1)Panelsetting;2)EXT CONTROL I/O;
        3)Limitdata batch memory.
       
      Temperature/humidity for operation.... 0to 40℃,RC 90% max.
      Tempearture/

      humidity
      for

      characte-

      ristics in spec.
      6 to 35℃,RC 85% max.
      LCD Tempearture

      /humidity for
      operation....
      0to 30℃,RC 90% max.
        0 to 40℃,RH60%max.
      Power source..... 100/120/220/240VAC,±10%(max.250V)/Approx.48W
      Dimensions..... 426(W)*99(H)*440(D)mm
      Weight.... Approx.10kg
      Accessories.... Instruction
      manual(1),cable(1),powercord(1)
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