Category Archives: Diving

Draft design maths for measuring helium percentage

This is part of a potential project to build a trimix analyser.  See here for info on the project overall. A key component is to measure the percentage of helium in the gas, and one option for that is to … Continue reading

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Trimix gas analyser thinking

EDIT – created project as a github repository here. Those who are divers and have at least a Nitrox certification will know the value of analysing the gas you will be breathing (and there are many, myself included, who would … Continue reading

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JJ CCR head cover

I’ve been getting into diving quite a bit in the last few years, and now mostly dive a Closed Circuit Rebreather.  The one I use, like most, has a removable head (the top of the unit) that has most of … Continue reading

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