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Data logging on oscilloscopes

  1. Nov 13, 2016 #1
    I am trying to measure and record the change in peak to peak voltage (measured by a hydrophone) for the following experimental set-up:

    fXOwCUU.jpg

    As you can see the waveform in the vessel changes with vertical location, therefore I have a hydrophone connected to a motor that can adjust its position. The problem I am having is how to log the data!

    My oscilloscope has logging ability (when you plug in a USB) but I'm slightly confused:

    1. Initial testing shows that the oscilloscope doesn't log into one file continuously it saves a file every 10 seconds or so, there seems to be no way of controlling this? It seems to capture ONLY the waveform in that period:

    Example: File 1

    75d8bHJ.jpg

    Example: File 2 (~10 seconds later)

    fKz6tsE.jpg

    2. Ideally I want to log peak to peak voltage as the measuring device changes position, is this possible?

    In short, I need one file from the oscilloscope that shows how the peak to peak voltage changes when the motor is set to a set velocity (~1mm/s) and the hydrophone position changes. Has anyone done anything like this before? Any advice would be appreciated.
     
  2. jcsd
  3. Nov 13, 2016 #2
    Ahh, it's ok i think i have it...

    So I need to set it to "infinite monitoring". Although this still wont give me average peak to peak values for each triggered waveform. Infact I dont want to trigger at all, I just want Vpk-pk versus time as the measuring devices position changes.

    I'll keep trying, if there are any suggestions it would be great.
     
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