Bühlmann decompression algorithm: Difference between revisions

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{{Short description|Mathematical model of tissue inert gas uptake and release with pressure change}}
The '''Bühlmann decompression set of parameters''' is an [[Haldane's decompression model|Haldanian]] [[mathematical model]] ([[algorithm]]) of the way in which [[inert gases]] enter and leave the human body as the [[ambient pressure]] changes.<ref name="AAB1984" /> Versions are used to create '''Bühlmann decompression tables''' and in personal dive computers to compute no-decompression limits and decompression schedules for dives in real-time. These [[decompression tables]] allow [[Underwater diving|divers]] to plan the depth and duration for dives and the required [[decompression stops]].
 
The sets of parameters have been developed by Swiss physician Dr. [[Albert A. Bühlmann]], who did research into decompression theory at the Laboratory of Hyperbaric Physiology at the University Hospital in [[Zürich]], [[Switzerland]].<ref name="AAB1982" /><ref name="spums1999" />
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The <math>b</math> values calculated do not correspond to those used by Bühlmann for tissue compartments 4 (0.7825 instead of 0.7725) and 5 (0.8126 instead of 0.8125).<ref name="Buhlmann-a-b-2002" />
 
Versions B and C have manually modified<ref name="Buhlmann-a-b-2002" /> the coeffcientcoefficient <math>a</math>.
 
The modified values of <math>a</math> and <math>b</math> are shown in bold in the table below.