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:
Nov. 14, 2023
Filed:
Apr. 05, 2019
Applicant:
Viavi Solutions Inc., Chandler, AZ (US);
Inventor:
Vincent Handerek, Fleet, GB;
Assignee:
VIAVI SOLUTIONS INC., Chandler, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 5/353 (2006.01); G01H 9/00 (2006.01); G01K 11/32 (2021.01); G01L 11/02 (2006.01);
U.S. Cl.
CPC ...
G01D 5/35361 (2013.01); G01H 9/004 (2013.01); G01K 11/32 (2013.01); G01L 11/025 (2013.01);
Abstract
A distributed optical fibre sensor is discussed which is arranged to detect acoustic vibration and at least a first of two or more other measurands, which could be for example two or more of changes in temperature, changes in static pressure, and changes in static strain. At least first and second optical waveguides are arranged to have optical path length response characteristics to at least one of the other measurands which are different from each other, and an analyser is arranged to determine at least said first other measurand using differences between the interference signals from each of the optical waveguides.