DEVICE FOR MAPPING FLOODED TUNNELS

摘要

A device for mapping a three-dimensional space, particularly a flooded tunnel, comprising a first magnetic sensor (2) outputting a first electrical signal indicating the geographical orientation of the support holding said magnetic sensor (2), a tracking wire with a second sensor outputting a signal indicating the distance travelled from a reference point, and a third sensor outputting a pressure signal. Said device further comprises a computer for storing a data file corresponding to the signals from said three sensors.