Reduced gradient bubble model
The reduced gradient bubble model (RGBM) is an algorithm developed by Dr Bruce Wienke for calculating decompression stops needed for a particular dive profile. It is based on the Varying Permeability Model.[1]
It is used in several dive computers, particularly those made by Suunto, Mares, HydroSpace Engineering,[1] and Underwater Technologies Center.[2] It is characterised by the following assumptions: blood flow (perfusion) provides a limit for tissue gas penetration by diffusion; an exponential distribution of sizes of bubble seeds is always present, with many more small seeds than large ones; bubbles are permeable to gas transfer across surface boundaries under all pressures; the haldanean tissue compartments range in half time from 1 to 720 minutes, depending on gas mixture.[1]
References
- ^ a b c Wienke, Bruce R; O’Leary (13 February 2002). "Reduced gradient bubble model: Diving algorithm, basis and comparisons" (PDF). Tampa, Florida: NAUI Technical Diving Operations. pp. 7–12. Retrieved 12 January 2010.
{{cite web}}: Text "first2-Timothy R" ignored (help) - ^ "Dive Computer". Retrieved 12 January 2010.
External links
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