[SI-LIST] Waveform Measurements

  • From: Ed Sayre III <esayre3@xxxxxxxx>
  • To: si-list@xxxxxxxxxxxxx
  • Date: Wed, 04 Dec 2002 16:59:06 -0500

Hi Olivia,

   Way back in my days at DEC we took data from photos out of a scope 
camera and used an X-Y tablet to trace the waveforms.  This gave us X-Y 
data in a text form that we could then manipulate.  I have used a number of 
tools, Labview (national instruments), Wavestar (Tek), 
Benchlink(Agilent/HP), Scope54(NESA) to effectively do the same thing, with 
much greater accuracy, directly from the scope.  You will need to re-take 
the measurements if you use one of these tools.  What type of accuracy do 
you need?
    If new measurements are out of the questions then I submit that you 
could either try the bit pad approach, or try overlaying the waveform with 
one you craft by hand.  Sorry I am not much more help then that.

         Regards
         -Ed Sayre

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  Dr. Edward Sayre 3rd            e-mail: esayre3@xxxxxxxx
  NESA, Inc.                              http://www.nesa.com/
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