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:
Jun. 22, 2021

Filed:

Aug. 23, 2019
Applicant:

Oki Electric Industry Co., Ltd., Tokyo, JP;

Inventors:

Hideyuki Iwamura, Tokyo, JP;

Tokuo Yamaguchi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 5/353 (2006.01); G01M 11/08 (2006.01); G01L 1/24 (2006.01); G01K 11/32 (2021.01); G01K 3/06 (2006.01); G01K 11/3206 (2021.01); G01M 11/00 (2006.01);
U.S. Cl.
CPC ...
G01D 5/35358 (2013.01); G01D 5/3537 (2013.01); G01D 5/35364 (2013.01); G01D 5/35374 (2013.01); G01K 3/06 (2013.01); G01K 11/32 (2013.01); G01K 11/3206 (2013.01); G01M 11/085 (2013.01); G01M 11/3109 (2013.01); G01L 1/242 (2013.01);
Abstract

An optical fiber sensor device includes a control section configured to compute a physical quantity in an optical fiber installed at plural measurement locations based on intensity of scattered light received, and to compute an average of the computed physical quantity for the optical fiber. The control section is configured to compute the average of the physical quantity based on the computed physical quantity and on a length of the optical fiber. A length of the optical fiber installed at the measurement location is increased as a distance between a light source and the respective measurement location increases.


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