Hi
>
> I am trying to make a conductivity meter and would like to know if any body
> can advise on how to make the electrodes? Do I make them from paladium or
> can I use something like alluminum?
> Also, would I get an improved conductivity value using an AC signal?
>
> Cheers
>
> Wayne
Hi Wayne,
The company I work for sells conductivity meters, and while I don't know much about the principles I do know that they use high density carbon electrodes (graphite?) and use AC drive to measure the conductivity.
Try searching Google for conductivity electrodes.
Cheers, Colin