Algoritem and Hydrox Tables

[Miha]

Does anybody know the algorithm or formula which is used in (preferably the latest one) dive computers or is it really that secretive? I think it should be more public so anybody can contribute in order to improve it.

Another question i would have is: if anybody have a hydrox tables or these can't be find in open domain too?

[MixedUp]

Originally Posted by Miha

Does anybody know the algorithm or formula which is used in (preferably the latest one) dive computers or is it really that secretive? I think it should be more public so anybody can contribute in order to improve it.

All computer manufacturers will have their own preferred algorithm

Another question i would have is: if anybody have a hydrox tables or these can't be find in open domain too?

What is a hydrox table?

Steve

[nigelH]

Originally Posted by Miha

Does anybody know the algorithm or formula which is used in (preferably the latest one) dive computers or is it really that secretive? I think it should be more public so anybody can contribute in order to improve it.

A lot of people use Bühlmann/Haldane for the gassing on and off but start adding to their 'safe' depth systems. There are perfectly acceptable public domain systems. My preference is Bühlmann plus Gradient Factors.

Most improvements aren't improvements. They are just tweaking with what is or isn't acceptable risk. Balancing the exposure of being in the water against the dangers of ascending too fast.

Another question i would have is: if anybody have a hydrox tables or these can't be find in open domain too?

I understand it has normally only been used in closed bell situations and the constants for hydrogen are much as helium. The interesting parts are the gas switch protocols.

[Miha]

by hydrox tables i refer to hydrogen oxygen mixes, if such thing exist at all.

[MixedUp]

Originally Posted by Miha

by hydrox tables i refer to hydrogen oxygen mixes, if such thing exist at all.

I don't think enough work has been done on this mix to draw up reliable tables for tech diving. Also lots of problems in handling the hydrogen I would guess.

Steve

[Sooty Stoo]

As far as I know hydrogen is really for stonkingly deep dives, beyond regular tech stuff.

However, I could be very very very wrong.

[Miha]

One more thing i am actually looking for the algorithm which calculates the dive profiles, if there is any at all?

regards,

[fatone]

Tables for hydrogen / oxygen / helium have been around for quite a while, but not in the public domain. Comex used them with stunning results in the late 80s- early 90s. You have to be very, very, very, very careful as to the hydrogen / oxygen ratio's, it's specificaly a deep (sub 500msw gas).
If you dont belive me about the very, very, very, very careful.........check out what happened to Lindenburg !

[A. Berk]

Originally Posted by fatone

Tables for hydrogen / oxygen / helium have been around for quite a while, but not in the public domain. Comex used them with stunning results in the late 80s- early 90s. You have to be very, very, very, very careful as to the hydrogen / oxygen ratio's, it's specificaly a deep (sub 500msw gas).
If you dont belive me about the very, very, very, very careful.........check out what happened to Lindenburg !

He-he, nice one fatone (though it was the 'Hindenburg' - you know, like the 22m puddle in Cambridgshire )

Yeah Comex did some experimental dives on Hydreliox and there was 'talk' of the mixture revolutionising oilfield diving. Well, it would have caused a revolution alright as everyone of us sat divers at the time said, "You can go and fornicate yourselves!". Having Oxygen to deal with is bad enough but Hydrogen too - in an offshore environment... never going to happen.

I hope you get the info you desire Miha... just warn us if you're turning up on a boat with Hydreliox in your tanks... and we can get the burgers and sausages ready

Berko

[MixedUp]

I hope you get the info you desire Miha... just warn us if you're turning up on a boat with Hydreliox in your tanks... and we can get the burgers and sausages ready

Berko

Can you just imagine him putting his twin set onto the bench setting off on a boat in a lumpy sea and the fcukers fall off the bench onto the floor.

Men overboard........

Steve