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:
Sep. 17, 2024
Filed:
Jul. 15, 2020
Applicant:
Nec Corporation, Tokyo, JP;
Inventors:
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01H 9/00 (2006.01); F17D 5/06 (2006.01); G01D 5/353 (2006.01); G01N 29/04 (2006.01); G01N 29/06 (2006.01);
U.S. Cl.
CPC ...
G01H 9/004 (2013.01); F17D 5/06 (2013.01); G01D 5/35358 (2013.01); G01N 29/069 (2013.01); G01N 29/043 (2013.01);
Abstract
An optical fiber sensing system according to the present disclosure comprises: an optical fiber () that is laid in a pipe (); a reception unit () configured to receive, from the optical fiber (), an optical signal superimposed with vibration detected by the optical fiber (); and an assessment unit () configured to extract a vibration pattern of the vibration detected by the optical fiber () from the optical signal and determine the degradation state of the pipe () based on the extracted vibration pattern.