17-12-2011, 12:37 PM
Det er jo fordi helium Atomerne er så små at de kan trænge igennem en normal pakning, og når så trykket falder igen vil det øgede tryk under glasset( pga de små partikler er sluppet ind) få det til at poppe af.
Seikos L pakning er lavet så de små helium atomer ikke kan komme igennem.
Dette er smart når man laver et saturated dyk, hvor man skal i kammer efter dykket.
Der er jo helium i vores atmosfære, så det er der også inde i disse kamre.
Hapset fra wiki:
Saturation diving is a diving technique that allows divers to reduce the risk of decompression sickness ("the bends") when they work at great depth for long periods of time.[1][2]
Decompression sickness occurs when a diver with a large amount of inert gas dissolved in the body tissues is decompressed to a pressure where the gas forms bubbles which may block blood vessels or physically damage surrounding cells. This is a risk on every decompression, and limiting the number of decompressions can reduce the risk.
"Saturation" refers to the fact that the diver's tissues have absorbed the maximum partial pressure of gas possible for that depth due to the diver being exposed to breathing gas at that pressure for prolonged periods. This is significant because once the tissues become saturated, the time to ascend from depth, to decompress safely, will not increase with further exposure.
In saturation diving, the divers live under pressure in a Saturation system or "saturation spread", a hyperbaric environment on the surface, or an ambient pressure underwater habitat, for the duration of the project or several day to weeks, as appropriate, and are decompressed to surface pressure only once, at the end of their tour of duty. This is usually done in a decompression chamber which is part of the saturation system, and the risk of decompression sickness is significantly reduced by limiting the number of decompressions, and by decompressing at a very conservative rate.
Seikos L pakning er lavet så de små helium atomer ikke kan komme igennem.
Dette er smart når man laver et saturated dyk, hvor man skal i kammer efter dykket.
Der er jo helium i vores atmosfære, så det er der også inde i disse kamre.
Hapset fra wiki:
Saturation diving is a diving technique that allows divers to reduce the risk of decompression sickness ("the bends") when they work at great depth for long periods of time.[1][2]
Decompression sickness occurs when a diver with a large amount of inert gas dissolved in the body tissues is decompressed to a pressure where the gas forms bubbles which may block blood vessels or physically damage surrounding cells. This is a risk on every decompression, and limiting the number of decompressions can reduce the risk.
"Saturation" refers to the fact that the diver's tissues have absorbed the maximum partial pressure of gas possible for that depth due to the diver being exposed to breathing gas at that pressure for prolonged periods. This is significant because once the tissues become saturated, the time to ascend from depth, to decompress safely, will not increase with further exposure.
In saturation diving, the divers live under pressure in a Saturation system or "saturation spread", a hyperbaric environment on the surface, or an ambient pressure underwater habitat, for the duration of the project or several day to weeks, as appropriate, and are decompressed to surface pressure only once, at the end of their tour of duty. This is usually done in a decompression chamber which is part of the saturation system, and the risk of decompression sickness is significantly reduced by limiting the number of decompressions, and by decompressing at a very conservative rate.
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