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Noise

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    Last Modified: November 30, 2020

    Wideband source noise

    <20 mV peak-to-peak in 60 V range, device configured for normal transient response, 10 Hz to 20 MHz, typical

    The following figures illustrate measurement noise as a function of measurement aperture for the PXIe-4139.

    Figure 1. Voltage Measurement Noise vs. Measurement Aperture, Nominal
    spd-note-note
    Note  

    When the aperture time is set to 2 power-line cycles (PLCs), measurement noise differs slightly depending on whether the Power Line Frequency is set to 50 Hz or 60 Hz.

    Figure 2. Current Measurement Noise vs. Measurement Aperture, Nominal
    spd-note-note
    Note  

    When the aperture time is set to 2 power-line cycles (PLCs), measurement noise differs slightly depending on whether the Power Line Frequency is set to 50 Hz or 60 Hz.


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