| 摘要 |
A mixed gas bell diving deep ocean simulator has particular utility in training of student commercial divers. Required training dives, both air and mixed gas, can be carried out in safety and at a substantial cost savings as compared with in-ocean training dives. The simulator comprises a hyperbaric cylinder serving as a work chamber and a diving bell suspended within the work chamber. The work chamber is flooded so that a portion of the diving bell is submerged. The bell and work chamber are compressed to simulate lowering of the bell to an ocean depth, and are decompressed to simulate raising the bell from that depth. An arrangement is provided for automatically tracking the pressure outside the bell (i.e., in the work chamber) with the pressure in the bell so that the simulated depth in the work chamber corresponds to that of the bell within a predetermined differential (e.g., three feet of sea water).
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