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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.:

US 10718711 B1

PDFFull Text
Date of Patent:
Jul. 21, 2020

Filed:

Apr. 11, 2019

Fiber optic sensing apparatus, system, and method of use thereof

Applicant:

Jinan University, Guangzhou, CN;

Inventors:

Tuan Guo, Guangzhou, CN;

Christophe Caucheteur, Guangzhou, CN;

Fu Liu, Guangzhou, CN;

Xuejun Zhang, Guangzhou, CN;

Shunshuo Cai, Guangzhou, CN;

Assignee:

JINAN UNIVERSITY, Guangzhou, CN;

Attorney:

Junjie Feng

Primary Examiner:

Md M Rahman

Int. Cl.
CPC ...
G01J 4/00 (2006.01); G01N 21/552 (2014.01); G01N 21/31 (2006.01); G01N 33/00 (2006.01);
U.S. Cl.
CPC ...
G01N 21/553 (2013.01); G01N 21/31 (2013.01); G01N 33/005 (2013.01); G01N 33/0054 (2013.01); G01N 33/004 (2013.01); G01N 33/0044 (2013.01); G01N 33/0047 (2013.01); G01N 2201/0846 (2013.01);
Abstract

A sensing apparatus, system, and use method for selective detection of a target molecule in a gaseous medium with a limit of detection of less than 50 ppm are provided. The sensing apparatus comprises an optical fiber having a core with a tilted grating, and a coating assembly that is both active to surface plasmon resonance (SPR) and reversibly reactive to the target molecule to allow for repeated detection. Upon a compatible light propagating in the optical fiber, surface plasmon waves at an interface between the coating assembly and the medium can be generated to thereby derive information of the target molecule. Signals from core mode optical waves can additionally be used as inherent reference to remove influences of fluctuations from environmental factors and input power level. There is at least one range of concentrations for the target molecule allowing for linear measurement. Multiplexing of a plurality of sensing apparatuses is also disclosed.

Find Patent Forward Citations

Guo, Tuan. (2020). Fiber optic sensing apparatus, system, and method of use thereof (U.S. Patent No. 10718711). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10718711

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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