Method for producing an underwater pipe and device for implementing same

A method for producing a tubular pipe intended for the transport of hydrocarbons including steps of:

• assembling a structure of metal peripheral elements, winding the peripheral elements in an S-Z configuration about a central flexible core while driving the core in movement along a longitudinal axis of the core;
• rotating at least one inductive sensor about the central flexible core in a manner synchronized with longitudinal movement of the central flexible core, for causing the at least one sensor to scan the periphery of the central flexible core opposite and in the proximity of the peripheral elements wound around the central flexible core during the assembly step;
• operating the at least one sensor to acquire measurement signals having an amplitude which varies according to whether or not the at least one sensor is located opposite a peripheral element wound around the core during the rotation of the at least one sensor around the central flexible core;
• and
• using the acquired measurement signals to control the positioning of the assembled peripheral elements.