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. 21, 2017
Filed:
Feb. 16, 2016
Applicant:
Fotech Solutions Limited, London, GB;
Inventor:
Vincent Handerek, Essex, GB;
Assignee:
Fotech Solutions Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 5/353 (2006.01); G01M 11/00 (2006.01); G01L 11/02 (2006.01); G01H 9/00 (2006.01);
U.S. Cl.
CPC ...
G01M 11/3145 (2013.01); G01D 5/35303 (2013.01); G01D 5/35306 (2013.01); G01D 5/35358 (2013.01); G01H 9/004 (2013.01); G01L 11/025 (2013.01); G01M 11/3127 (2013.01);
Abstract
There is described a distributed optical fiber sensor for detecting one or more physical parameters indicative of an environmental influence on a sensor optical fiber, as a function of position along the sensor fiber. The sensor uses probe light pulses of different wavelengths. At least some of the probe light pulses may also be of different pulse lengths. The relative phase bias between interferometric signals in backscattered probe light of different wavelength pulses may also be controlled.