Again reffering to the F5. The capacitive probes has got a refference probe
all sorruonded by the fluid it is submerged into. This is used to correct
the measured tank level.

Regards
Sten Sem-Jacobsen

> > > So I'm currently looking at using
> > > the pressure in the sealed tank as an indication of the
> amount of water
> > > taken on.
> >
> > That means you will really be measuring the volume of air in the tank
> times
> > the temperature.
>
> Oops, I meant to say you will be measuring the MASS of air in the
> tank times
> the temperature.  The volume is presumably held constant by the tank.
>
> The overall point still is that you will need to temperature
> compensate the
> pressure reading to get the accuracies you stated earlier.  Water
> temperature can change quite a bit in just a meter or two of depth, and
> sometimes just a few meters lateral distance.  I don't have any submarine
> experience, but this comes from swimming, snorkeling, and the like.

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