Since higher voltage sends ions away from the electrode at higher
velocity, higher voltage means you can use higher frequency AC.
When the polarity changes, the suddenly negative pole attracts the
positive ion back on unless it is far enough away from that pole by that
time to prevent it.
Attraction at inverse square of distance....blah blah blah.
At every pole change, all the electrochemistry has to reverse itself and
that takes time too..the higher the voltage, the faster the reversal [??]
I have found that at low voltage ranges [ 6-36v ] and a 60 second long
cycle, about 15 or 20 seconds of that does virtually nothing as the
chemistry changes [evidenced by flat spots and dips in voltage and current
charts], so, process times are a LOT slower than at around 3 minutes per
cycle...which is only just a little bit slower than DC.
Also, if using a voltage comparator as the basis for conductivity sensing
to trigger an auto off, you'll need a lot of delay built in to avoid "pass
through zero volts" triggering the auto off too early.
I've never messed with HVAC [not my "thing" ] , but I've "heard" that to
get anything out of it at 60 Hz over a reasonable length of time, it takes
at least 5,000 volts and most use around 20,000 volts...using a "gradient"
to control current [electrode distance???]
....really, dunno much about it. Just bits and pieces with a few
assumptions and extrapolations.
Ode
At 04:48 AM 12/13/2009 -0800, you wrote:
Since it is recommended, and indeed works much better, to switch the DC
polarity periodically, it would make sense for AC to work. I really don't
understand why it would not, since all it does is switch polarity
periodically, albeit faster then you could do with a manual switch.
I have always used DC, but not switched it until recently. The question
that pops out of this then is: What is the optimum switching time? If
not 60 cycles per second then what? And why?
And I have read every one of those articles below and much more. Been
making silver for several years now. Just trying to refine the technique
and scale up to faster production. First step is to develop the best method.
Dick
From: "[email protected]" <[email protected]>
To: [email protected]
Sent: Fri, December 11, 2009 6:24:05 PM
Subject: Re: CS>ac or dc?
The answer is DC.
If you didn't know that, you are woefully behind in your understanding
of CS creation and your research.
Suggested:
<http://silver-lightning.com/theory.html>http://silver-lightning.com/theory.html
http://silver-lightning.com/research.html
<http://www.colloidalsilver.com.au/FREE-DIY.html>http://www.colloidalsilver.com.au/FREE-DIY.html
http://www.silver-colloids.com/Book/SilverColloids-s.pdf
<http://www.fugitt.com/cs_notes/>http://www.fugitt.com/cs_notes/
Chuck
When you are not looking at it, this sentence is in Spanish
On 12/11/2009 1:19:46 PM, Richard Goodwin
(<mailto:[email protected]>[email protected])
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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