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A dive computer, personal decompression computer or decompression meter is a device used by an underwater diver to measure the elapsed time and depth during a dive and use this data to calculate and display an ascent profile which, according to the programmed decompression algorithm, will give a low risk of decompression sickness.
The Shearwater NERD was released at Dive 2013 in Birmingham, UK. [19] Shearwater Perdix in compass mode. In 2015, the Perdix wrist mounted dive computer was released. The Perdix is similar to the Petrel but has a 30% longer battery life and a thinner and lower profile. [20] The computer was named after the grey partridge Perdix perdix. [21]
The Orca Edge was an early example of a dive computer that ran a real time algorithm. [2] Designed by Craig Barshinger , Karl E. Huggins and Paul Heinmiller, the Edge did not display a decompression plan, but instead showed the ceiling or the so-called "safe-ascent-depth" and a graphic display of calculated tissue gas loadings.
The personal decompression computer, or dive computer, is a small computer designed to be worn by a diver during a dive, with a pressure sensor and an electronic timer mounted in a waterproof and pressure resistant housing and which has been programmed to model the inert gas loading of the diver's tissues in real time during a dive. [31]
The US Navy has used several decompression models from which their published decompression tables and authorized diving computer algorithms have been derived. The original C&R tables used a classic multiple independent parallel compartment model based on the work of John Scott Haldane in England in the early 20th century, using a critical ratio exponential ingassing and outgassing model.
In 1979 on a diving trip to the Bahamas, he was introduced to the concept of multi-level diving and the technique of repet-up s, which was in use by commercial divers as a way to make more effective use of the Navy tables for multi-level diving, though there were some theoretical uncertainties with the system, as the Navy tables of the time used six tissue compartments, but only considered the ...
Simu Liu stepped in as guest host for The Kelly Clarkson Show on Monday, but the Last Breath star claimed he only had a last-minute warning that he was taking over for Kelly Clarkson. "I do have a ...
Oceanic developed the first HUD style mask, which is an eyes-and-nose diving mask with a built-in LCD display, commercially known as a DataMask, capable of providing various dive data from an on-board diving computer.
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