Author Topic: Oscilloscopes' averaging speed  (Read 6311 times)

0 Members and 1 Guest are viewing this topic.

Offline MarkL

  • Supporter
  • ****
  • Posts: 2150
  • Country: us
Re: Oscilloscopes' averaging speed
« Reply #50 on: April 22, 2020, 11:47:16 pm »
mmm22: One thing that you haven't really mentioned is the bandwidth needed for your measurement.  It will be a major factor in deciding on a scope.

You mentioned early-on a pulse of few nanoseconds, and that you want a "quantitative" measurement.  What value are trying to quantify?  Amplitude?  Edge speed?  Decay?  Timing in relation to another signal?

For example, the TDS3032B that you mentioned is 300MHz.  The Keysight EDUX1052A that you later mentioned is only 50MHz.  On the latter, you'll see a pulse of only few ns as a lump.  It will be greatly attenuated and with little detail.  You'll at least get closer to an actual amplitude on the TDS3032B, but it will still not show you much detail.

I think if you described what you were trying to do, or at least provided an example waveform and what you were trying to accurately measure on it and how often, you might get more congruent answers from this thread's participants.
 
The following users thanked this post: egonotto, mmm22

Offline mmm22Topic starter

  • Regular Contributor
  • *
  • Posts: 68
  • Country: 00
Re: Oscilloscopes' averaging speed
« Reply #51 on: April 23, 2020, 07:31:08 am »
mmm22: One thing that you haven't really mentioned is the bandwidth needed for your measurement.  It will be a major factor in deciding on a scope.

You mentioned early-on a pulse of few nanoseconds, and that you want a "quantitative" measurement.  What value are trying to quantify?  Amplitude?  Edge speed?  Decay?  Timing in relation to another signal?

For example, the TDS3032B that you mentioned is 300MHz.  The Keysight EDUX1052A that you later mentioned is only 50MHz.  On the latter, you'll see a pulse of only few ns as a lump.  It will be greatly attenuated and with little detail.  You'll at least get closer to an actual amplitude on the TDS3032B, but it will still not show you much detail.

I think if you described what you were trying to do, or at least provided an example waveform and what you were trying to accurately measure on it and how often, you might get more congruent answers from this thread's participants.
I am mostly interested to measure the integral of the pulse, so I guess 50MHz should be still fine for a few ns pulse.
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf