Ethernet Digitizer

• Ethernet Digitizer
  Posted by mdt on 01 May, 2023 20:05
• Hello! I am looking for an oscilloscope/digitizer that can be controlled from computer via ethernet. I have been using the BitScope 445 http://www.bitscope.com/product/BS445/ but it's not working anymore and the company is not responding. I know there are quite a few options (Analog Discovery, PicoScope, or CleverScope), but here are some of my main requisites:
  
  - Ethernet interface (as digitizer needs to be far away from computer, and on different ground than computer)
  - At least 10 MS/s
  - I need to analyze signals from 1 mV to 10 V
  - At least two channels with external trigger
  - Digitizer software needs to run on Linux and should have Python API
  - If it has a rack-mount option, that would be a plus!
  
  Any suggestions you have are greatly appreciated! Thank you!
• #1 Reply
  Posted by alm on 01 May, 2023 22:07
• The combination of features of somewhat high sampling rate, multiple gains and ethernet is uncommon, I believe. So that probably translates into expensive. Do you want to continuously stream samples or is batch wise acquisition like an oscilloscope acceptable? Then a bench scope with ethernet might be the cheapest solution.
  
  Another alternative is a USB DAQ/scope connected to a small single board computer running Linux that connects to ethernet.
• #2 Reply
  Posted by dobsonr741 on 02 May, 2023 14:46
• I assume needs to be a low budget solution - please take a look at the Digilent offerings:
  https://digilent.com/shop/test-and-measurement-equipment/usb-oscilloscopes-analyzers-and-signal-generators/
  
  Ethernet is not built-in, can be done with adding a raspberry pi.
• #3 Reply
  Posted by alm on 02 May, 2023 15:15
• If you need 10 MS/s streaming, then look carefully at the specs. For example the Digilent ADP3250 is said to sample up to 125MS/s in record mode, but only ~1MS/s in 'Linux mode'. It wouldn't surprise me if the maximum sample rate via ethernet is also lower.
• #4 Reply
  Posted by mdt on 04 May, 2023 21:28
• Quote from: alm on 01 May, 2023 22:07

  The combination of features of somewhat high sampling rate, multiple gains and ethernet is uncommon, I believe. So that probably translates into expensive. Do you want to continuously stream samples or is batch wise acquisition like an oscilloscope acceptable? Then a bench scope with ethernet might be the cheapest solution.
  
  Another alternative is a USB DAQ/scope connected to a small single board computer running Linux that connects to ethernet.
  

  
  Thank you. Something below $1k would be nice. I don't need to continuously stream, so what you are suggesting would work. Any scope you would recommend given what I need? Thanks!