What is a depth sensor?
What are Depth Sensors? Depth sensors are a form of three-dimensional (3D) range finder, which means they acquire multi-point distance information across a wide Field-of-View (FoV). Standard distance sensing technologies typically measure distance using one or more sensors with comparatively narrow Fields-of-View.
Which sensors are used for depth tracking?
Depth-tracking sensors
Some companies still use a pressurized depth-tracking/ROP sensor. The pressurized ROP system works on the principle of the change in hydrostatic pressure in a column of water as the height of that column is varied. This change can then be indirectly related to a depth measurement.