The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 14, 2017
Filed:
Oct. 25, 2013
Applicant:
Optasense Holdings Limited, Farnborough, Hampshire, GB;
Inventors:
Roger Crickmore, Farnborough, GB;
David Hill, Hampshire, GB;
Assignee:
Optasense Holdings Limited, , GB;
Primary Examiner:
Int. Cl.
CPC ...
G01H 9/00 (2006.01); G01V 1/22 (2006.01); G01L 1/24 (2006.01); G01V 1/20 (2006.01); G01D 5/353 (2006.01);
U.S. Cl.
CPC ...
G01H 9/004 (2013.01); G01L 1/242 (2013.01); G01V 1/208 (2013.01); G01V 1/226 (2013.01); G01D 5/35358 (2013.01);
Abstract
Fiber optic cable structures suitable for distributed acoustic sensing that are capable of discriminating between stimuli acting on the cable in different directions, the cable structure including a core structure () with an optical fiber wound around the periphery of the core structure, the core further including a mass () which is movable in a preferred direction within the cable such that movement of said mass in said preferred direction causes a change in length of the fiber wound around the periphery of the core.