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.

Date of Patent:
May. 17, 2016

Filed:

Mar. 24, 2014
Applicant:

General Electric Company, Schenectady, NY (US);

Inventors:

William Albert Challener, Niskayuna, NY (US);

Glen Peter Koste, Niskayuna, NY (US);

Sachin Narahari Dekate, Niskayuna, NY (US);

Sabarni Palit, Guilderland, NY (US);

Assignee:

GENERAL ELECTRIC COMPANY, Schenectady, NY (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 11/16 (2006.01); G01L 11/02 (2006.01); E21B 47/06 (2012.01); G01D 5/353 (2006.01);
U.S. Cl.
CPC ...
G01L 11/025 (2013.01); E21B 47/06 (2013.01); G01D 5/3538 (2013.01); G01D 5/35312 (2013.01);
Abstract

A pressure sensing cable in one embodiment includes a polarization maintaining (PM) optic fiber having a length; and a Fiber Bragg Grating (FBG) pair formed in the PM optic fiber. The FBG pair includes a first FBG formed at a location along the length of the optic fiber. The first FBG defines a first wavelength range at which the first FBG is reflective. The FBG pair also includes a second FBG spaced a distance from the first FBG to define a FBG cavity extending between the first FBG and the second FBG. The second FBG defines a second wavelength range at which the second FBG is reflective. The first wavelength range of the first FBG and the second wavelength range of the second FBG at least partially overlap.


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