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. 19, 2013
Filed:
Sep. 04, 2008
Frederick Henry Kreisler Rambow, Houston, TX (US);
Frederick Henry Kreisler Rambow, Houston, TX (US);
Shell Oil Company, Houston, TX (US);
Abstract
A system for making temperature and pressure measurements distributed over a distance comprises a plurality of Bragg grating measurement points disposed in an optical fiber with a predetermined spacing between adjacent Bragg grating measurement points and a substrate with the optical fiber disposed thereon, at least a portion of the optical fiber being wrapped around the substrate with at least one predetermined wrap angle, wherein the predetermined wrap angle and predetermined spacing are selected to enable a temperature measurement signal to be distinguished from a bending measurement signal, wherein the substrate has a first coefficient of thermal expansion greater than a second coefficient of thermal expansion of the optical fiber and wherein the substrate comprises a hollow tube portion and a solid rod portion, each having optical fiber disposed thereon.