John Larkin wrote:

On Tue, 17 Jul 2007 23:22:41 -0500, "Tim Williams"
wrote:


Other possibilities;

Monitor V, I (or control one and watch the other) and sweep frequency; find
series resonance, ESR, ESL and C in one pass.


That is close to a mini VNA. That actually might not be hard to do.
DDS synthesizers are cheap nowadays.


Run repeated sweeps and trigger the ADC at progressive points to get a
complete plot of relatively fast waveforms with a relatively slow ADC (I
forget what this method is called...um recurrent sweep?).


Equivalent time sampling.


Depends on the ingenuity of the marketeer writing the brochure. The job
is to make it sound as close to realtime sampling as possible without
legally saying it ;-)

--
Regards, Joerg

http://www.analogconsultants.com