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:
Sep. 22, 2026

Filed:

Nov. 10, 2023
Applicant:

Ut-battelle, Llc, Oak Ridge, TN (US);

Inventors:

Daniel C. Sweeney, Oak Ridge, TN (US);

Christian M. Petrie, Oak Ridge, TN (US);

Adrian M. Schrell, Oak Ridge, TN (US);

Assignee:

UT-BATTELLE, LLC, Oak Ridge, TN (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01K 11/3206 (2021.01); G01D 5/353 (2006.01); G01K 11/32 (2021.01); G01K 7/16 (2006.01);
U.S. Cl.
CPC ...
G01K 11/3206 (2013.01); G01D 5/35358 (2013.01); G01D 5/35361 (2013.01); G01D 5/35393 (2013.01); G01K 11/32 (2013.01); G01D 5/35306 (2013.01); G01D 5/35329 (2013.01); G01K 2007/166 (2013.01);
Abstract

A system including a data processing apparatus and a memory is disclosed. The data processing apparatus is communicatively coupled with an optical frequency domain reflectometry (OFDR) system, and the memory is communicatively coupled with the data processing apparatus. The memory encodes instructions that, when executed by the data processing apparatus, cause the data processing apparatus to (a) receive, from the OFDR system, a timed sequence of backscattered light spectra associated with each segment of an optical fiber and (b) determine, for each optical-fiber segment, a set of values of a temperature or strain of the optical fiber segment. Determining the set of values for each optical-fiber segment includes selecting a reference spectrum, determining a spectral shift between the backscattered-light spectrum and the reference spectrum, and determining a value of the temperature or the strain of the optical-fiber segment based on the spectral shift.


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