FIBRE OPTIC TAUT WIRE

摘要

A taut cable with a fiber optic cable with Bragg diffusion gratings allows a suitable driver circuit to determine the shape of the taut cable at a large number of points along its length. This enables the total 3-dimensional shape of the taut cable to be estimated and from which the position of the vessel relative to a seabed weight attached to the taut cable can be inferred.

主权项

1. A method, for determining a relative position of a vessel in an ocean to a sinker weight dropped to the seabed, comprising the steps of:
lowering a taut cable with a fiber optic cable from the vessel into the ocean; receiving, by a controller, strain data from a plurality of sensor connectors connected to the fiber optic cable; determining a 3D shape of the fiber optic cable; and determining the relative position of the vessel based on the 3D shape.