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> This bring up another goody that I'd like to see designed and built. I > would like a computer with a built in gas analyzer (it probably only has > to detect PP02) that can go from tank to tank which would cover the > above situation. Of course, during a dive in which one is breathing from > different tanks at various times, this becomes a difficult thing > to do. I suppose the first step in this would be a computer that does > not analyze the gas but allows you to "switch models" during a dive. That > way, it could easily keep track of you while you're deep on tri-mix, > decompressing on nitrox and then further decompressing on pure o2. > > Now, if you could have little sensing devices implanted in each of > your mouthpieces that would send information to the computer (wireless!) > then this whole thing would be a snap. And while you're at it, why not just carry one cylinder of pure O2, and a seperate cylinder of Air or N2, and have the computer customize the O2 fraction in the breathing mix to keep you at a happy medium between O2 tox and N2 absorbtion + Narcosis (where "happy medium" is user definable). And lets throw in a CO2 scrubber and recycle exhaust breathing gas, just for good measure. Wow, come to think of it, we just designed a rebreather! (I think that the reason you don't see anyone doing the limited form of this as Carl proposed is that the rebreather tech is dropping in price so quickly. Not going the whole way (or at least to O2 fraction control) adds lots of complexity for relatively little gain. I personally would like to see more emphasis on open circuit with O2 fraction control, though -- less complexity, much cheaper, no twin hose regulator, etc.) > -Carl- -frank -- fhd@pa*.co* | The eye does not see the same as the heart. 1 212 559 5534 | -- Wim Wenders, _Until the End of the World_ 1 917 992 2248 | 1 718 746 7061 |
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