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:
Aug. 22, 2017
Filed:
Nov. 11, 2010
David John Hill, Dorchester, GB;
Magnus Mcewen-king, Hampshire, GB;
David John Hill, Dorchester, GB;
Magnus McEwen-King, Hampshire, GB;
OPTASENSE HOLDINGS LIMITED, , GB;
Abstract
A method of distributed fiber optic sensing is described in which an optical fiber () is interrogated with electromagnetic radiation; back-scattered radiation is detected; and the returns are processed to provide a measurement signal () for each of a plurality of longitudinal sensing portions of the optical fiber. The method comprises analyzing the measurement signals of a first subset of longitudinal sensing portions to provide a first zone () having a first sensing function and analyzing the measurement signals of at least a second subset of longitudinal sensing portions to provide at least a second zone () having a second, different, sensing function. The different sensing functions may include detecting different events of interest. In some embodiments the geometry of the fiber may provide different sensing zones ().