Fibre optic cable with tuned transverse sensitivity

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United States of America Patent

PATENT NO 10837805
APP PUB NO 20170292862A1
SERIAL NO

15516719

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Abstract

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This application relates to a fibre optic cable structure suitable for use as a sensing fibre optic for distributed acoustic sensing and having an improved sensitivity to transverse pressure waves. The application describes a fibre optic cable (300) having a longitudinal cable axis and comprising at least one optical fibre (301). The cable also comprises a compliant core material (303) mechanically coupled to the optical fibre(s), possible via a buffer (302) such that a longitudinal force acting on the compliant core material induces a longitudinal strain in the optical fibre(s). At least one deformable strain transformer (304) is coupled to the compliant core material and configured such that a force acting on the strain transformer in a direction transverse to the cable axis results in a deformation of the strain transformer thereby applying a longitudinal force to the compliant core material.

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Patent Owner(s)

Patent OwnerAddress
OPTASENSE HOLDINGS LIMITEDCODY TECHNOLOGY PARK IVELY ROAD FARNBOROUGH HAMPSHIRE GU14 OLX

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Godfrey, Alastair Farnborough, GB 29 581

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