Dive computers:

Dive computers are sophisticated devices that utilize mathematical algorithms to estimate inert gas absorption based on various dive profiles and conditions. They apply theoretical models, such as the Bühlmann model or others, which take into account the depth, time, and specific gas mixtures to determine how much inert gas a diver is absorbing. This estimation is crucial for managing the risk of decompression sickness and ensuring safe ascent rates.

While dive computers do indeed provide useful information that correlates with aspects of inert gas absorption, they do not directly measure the actual amount of inert gas in the diver’s body. Instead, they calculate and provide estimates based on the dive parameters, making the theoretical model application central to their function.

Additionally, dive computers may offer features like digital reproductions of dive tables, but this is more of a convenience feature rather than their primary function. Therefore, while they may enable divers to see equivalent information in a digital format, the essence of what they fundamentally do is apply these theoretical estimates to assist in dive safety and planning.