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 失真仪 HP 339A
  • 失真仪 HP 339A
  • 失真仪 HP 339A

    参考价格: ¥0.00
    品  牌:惠普
    产品型号:HP339A
    所在地区:北京
    上架时间:2018年09月17日
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    失真仪 HP 339A

     

     

    失真仪 HP 339A

    失真仪 HP 339A

    厂家: 美国惠普

    Distortion Analyzer 性能指标pdf

    • Ultra low distortion measurements
    • Built-in low distortion oscillator
    • Automatic
    • True RMS detection

    Distortion Measurement Set
    Ultralow distortion measuring system complete with total harmonic distortion (THD) analyzer, true rms voltmeter, and sinewave oscillator. THD measurements over the 10 Hz to 110 kHz frequency band, including harmonics to 330 kHz. Also features built-in tracking oscillator.
    Distortion Measurements

    • fundamental frequency range is 10 Hz to 110 kHz with 2 digit resolution
    • measurement range is 100% to 0.01%, (0 dB to -80 dB)

    Oscillator

    Frequency range is 10 Hz to 100 kHz with 2 digit resolution. Output level is variable from 4 V rms to 1 mV rms.

    Oscillator distortion ( >600 ohm load, <3 Vrms)

    10 Hz to 20 kHz < -93 dB (0.0022%) THD
    20 kHz to 30 kHz < -85 dB (0.0056%) THD
    30 kHz to 50 kHz < -80 dB (0.01%) THD
    50 kHz to 80 kHz < -70 dB (0.032%) THD
    80 kHz to 110 kHz < -65 dB (0.056%) THD

    Voltmeter
    Range is 1 mV rms full scale to 300 V rms full scale.

    Hewlett-Packards Model 339A Distortion Measurement Set is an ultra low distortion measuring system complete with total harmonic distortion (THD) analyzer, true-rms voltmeter, and sinewave oscillator. This small, lightweight bench measurement set allows you to make THD distortion measurements as low as 0.0018% over a 10 Hz to 110 kHz frequency band including harmonics to 330 kHz.

    For fast and easy THD measurements the built-in tracking oscillator in HPs 339A saves test time because you tune one instrument instead of two.  Frequency and level measurements are easy to do with HPs 339As voltmeter, which offers you a 1 mV to 300 V measurement range.  The Relative Level mode has been included to further simplify frequency response measurements.   Just set a 0 dBm reference at any frequency from 10 Hz to 110 kHz.  Gain measurements can be read directly from the easy-to-read meter.

    Operation Simplicity

    Automatic frequency tuning and set-level features allow you to make rapid, error free THD measurements.  The 339As built-in tracking oscillator eliminates the need to find the fundamental frequency and tune the analyzer for a null.  Just select your oscillator frequency and the rest is automatic.  Automatic set-level saves time by automatically setting 0 dB (100%) reference in the distortion measuring mode.  Front panel directional indicators light when the input range setting is improper insuring accurate and repeatable measurements where distortion as a function of a level (SINAD, for example) is desired.  Without this feature, measurements are very time consuming and tedious.

    When an external stimulus is used, analyzer tuning is simplified by directional indicator lights for reaching the fundamental null quickly and easily.

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