Re: Conductivity sensors


mooseo wrote:
linnix wrote:
Donald wrote:
mooseo wrote:
Otherwise, I guess it might be time to look for a new solution...


It seems to me that an optical solution would be better.

A clear window with a IR LED and IR sensor against the back side of the
window. When water is splashed on the window the IR would reflect onto
the sensor.

It's possible to do that. But IR would measure more than just water,
like bird poops?

I was thinking about the same 555 with internal IR isolations.

I sort of understand how IR isolators work for digital lines, but can
they work with analog?

Yes, to a certain degree. Do you need analog values or just on and
off (with or without water). For more accuracy, you can IR the A2D
values with fibers.

.

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