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:
Feb. 23, 2010
Filed:
Jun. 06, 2008
Applicants:
Dylan Davies, Stroud, GB;
Arthur H. Hartog, Winchester, GB;
Kamal Kader, Southampton, GB;
Inventors:
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical time domain reflectometry (OTDR) system is configured to detect Rayleigh backscatter reflected from a multimode sensing optical fiber. The system includes a single spatial mode filtering system to select a single speckle of the Rayleigh backscatter produced in response to an optical pulse launched into the multimode fiber. The detected single speckle may be used for distributed disturbance (vibration) detection.