Tank pressure plots for CCRs

Jef Driesen jef at libdivecomputer.org
Tue Jan 7 02:54:28 UTC 2014

On 2014-01-06 22:44, Dirk Hohndel wrote:
> Actually, there is no such thing as "it should be the same". Pressure
> data can fluctuate for many reasons and it's entirely possible that
> pressure has gone up because the diver crossed a thermocline. Or
> pressure could have gone down because of leakage.
> Since pressure data is NOT continuous but assembled from discrete
> samples there can and will be sudden changes.

To nitpick, I would say the opposite. The pressure is definitely 
continuous (abrupt changes in pressure are physically not possible). 
It's the sampling done by the dive computer that may not be optimal and 
cause those sudden changes. Of course there is not much we can do about 
that, because that's all we get.


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