Evening Ken,
>>At 06:26 PM 12/13/2005, you wrote:
Thanks Marshall and Wayne for your replies.
Wayne, I am looking at a schematic of your circuit. Is the LED the
current limiter? If so according to Marshall I need no more than 1ma per
square inch, I am assuming of electrode surface area. Lets say the bridge
will allow about 50.6V (voltage drop from diodes) to the rest of the circuit.
While all your calculations may be right, I don't think you allowed
for the resistance of the water.
And of course the distance of the electrode spacing enters in. This is the
real current limiter
In reality, the current is much less.
Does this seem right to the CS generator veterans on the list? Should I
be worried enough to boggle my own mind trying to do this?
Hopefully, you have a current meter. I would connect it and monitor the
current on the first few batches.
I did this and recorded the current relative to time, usually every 5
minutes.
If you are using a non automatic device, after a time watching the
current, you develop an instinct for
how any specific assemble will work.
You will also see the current increase as the conductivity decreases. You
can stir manually or get an air bubbler, or fashion some other method.
You can make great CS and prove that it works without getting so technical.
Observation and an open mind helps a lot.
If you want to get highly technical, design a current limiter circuit or
buy one that is ready to go.
From everything I have read on the list over the years, a number of great
generators exist.
I have proven time and time again that my manual CS is effective.
I would suggest that you work manually for a time, then decide if you want
an automatic generator with all the bells and whistles.
I have spent a lot of time with analog and digital sensors, inputs and
outputs. I always felt that if I was going automatic, I would build a
computer controlled unit and data log the current, temperature,
and do an automatic cut off.
That would be a fun project for sure. A few 1.0 inch LED instruments would
enhance everything very much. Of course the sensors and signal
conditioners could make this unit cost $ 500 to $ 1000.
The one inch meters used to cost near $ 100.00
The CS would still work much like that made with the ten dollar system.
Fun, experience, and learning would be the reward, unless you knew
everything when you started, then it would be no fun at all.
Wayne
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