Decompression equipment | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-01-15

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Decompression_equipment


00:01:31 1 Planning and monitoring decompression
00:01:54 1.1 Decompression algorithms
00:02:27 1.1.1 Choice of tables or algorithms
00:03:42 1.2 Decompression tables
00:04:41 1.2.1 Commonly used decompression tables
00:05:18 1.2.2 Other published tables
00:05:36 1.2.3 Recreational Dive Planner
00:06:33 1.3 Decompression software
00:08:22 1.4 Personal decompression computers
00:10:16 1.4.1 Decompression using a personal decompression computer
00:12:23 1.5 Ratio decompression
00:14:21 2 Controlling depth and ascent rate
00:15:10 2.1 Shot lines
00:16:35 2.1.1 Jonlines
00:17:36 2.1.2 Decompression trapezes
00:18:28 2.2 Downline
00:19:22 2.3 Upline
00:20:07 2.4 Surface marker buoy and delayed surface marker buoy
00:21:32 2.5 Decompression station
00:21:49 2.6 Diving stages and wet bells
00:23:12 3 Providing gases to accelerate decompression
00:24:20 3.1 Stage cylinders
00:25:45 3.2 Surface panel gas switching
00:26:31 3.3 Continuously variable mixture in closed circuit rebreathers
00:27:08 4 Surface decompression equipment
00:27:19 4.1 Deck decompression chambers
00:28:49 4.2 Dry bells and Saturation systems



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SUMMARY
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There are several categories of decompression equipment used to help divers decompress, which is the process required to allow divers to return to the surface safely after spending time underwater at higher pressures.
Decompression obligation for a given dive profile must be calculated and monitored to ensure that the risk of decompression sickness is controlled. Some equipment is specifically for these functions, both during planning before the dive and during the dive. Other equipment is used to mark the underwater position of the diver, as a position reference in low visibility or currents, or to assist the diver's ascent and control the depth.
Decompression may be shortened (or accelerated) by breathing an oxygen-rich "decompression gas" such as a nitrox blend or pure oxygen. The high partial pressure of oxygen in such decompression mixes produces the effect known as the oxygen window. This decompression gas is often carried by scuba divers in side-slung cylinders. Cave divers who can only return by a single route, can leave decompression gas cylinders attached to the guideline at the points where they will be used. Surface-supplied divers will have the composition of the breathing gas controlled at the gas panel.Divers with long decompression obligations may be decompressed inside gas filled hyperbaric chambers in the water or at the surface, and in the extreme case, saturation divers are only decompressed at the end of a tour of duty that may be several weeks long.