DC that you have to switch polarity on every minute or so, IS ....AC.
You're just Alternating the Current slower than 50- 60 times a second and
it's Square wave, not Sine wave AC.
Voltage controls ion velocity.
At a high frequency AC, voltage has to be very high so the Ions can get
away from the electrode fast and far enough, so the polarity change doesn't
just suck them back on.
...at 60 Hz, that's somewhere around 5 to 20 kilovolts..VERY dangerous...
a careless heart stopper.
ode
At 10:19 AM 12/11/2009 -0800, you wrote:
Which do you think works better for making EIS, DC that you have to switch
polarity on every minute or so, or AC, assuming everything else is equal?
Dick
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