[sdiy] Chemical Synth

[Glen]

At 04:59 PM 7/14/04 , R. Drake wrote:

>i tried to boost the level by adding surface area: used an aluminum plate
>and scrap of copperclad board, with a puddle of saltwater held in place by
>surface tension.  no noticable difference.

My intuition suggests to me that what you did was lower the impedance of
your signal source. Perhaps you could build multiple devices and connect
them in series to get a larger voltage signal? I realize that the
individual signals from the individual "cells" would not be correlated, but
they still might still add up to something more useful than the signal from
a single cell.

I also wonder what would happen if you applied a small, current-limited, dc
voltage across this cell. Perhaps the chemical reaction would modulate the
flow of the direct current through the cell, and result in a larger AC
voltage than what the cell would generate without an external DC bias?


later,
Glen