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. 24, 2013
Filed:
Oct. 28, 2010
Hua Xia, Niskayuna, NY (US);
Renato Guida, Niskayuna, NY (US);
Juntao Wu, Niskayuna, NY (US);
Axel Busboom, Bavaria, DE (US);
Aniceto Bantug, Clifton Park, NY (US);
Pramod Chamarthy, Niskayuna, NY (US);
Hua Xia, Niskayuna, NY (US);
Renato Guida, Niskayuna, NY (US);
Juntao Wu, Niskayuna, NY (US);
Axel Busboom, Bavaria, DE (US);
Aniceto Bantug, Clifton Park, NY (US);
Pramod Chamarthy, Niskayuna, NY (US);
General Electric Company, Niskayuna, NY (US);
Abstract
A gas detection system is provided for identifying a gas. The gas detection system includes a sensing module with a hollow chamber enclosed by a chamber housing. Additionally, the sensing module includes an optical sensing fiber positioned within the hollow chamber. The optical sensing fiber includes a gas sensor including a fiber Bragg grating positioned at a grating location along the optical sensing fiber, and a sensing layer affixed to an exterior surface of the optical sensing fiber at the grating location. After the gas is directed into the hollow chamber, the sensing layer and the gas exchange heat energy, based in part on a heat transfer coefficient of the gas. The exchange of the heat energy induces a shift in a Bragg resonant wavelength of the fiber Bragg grating which exceeds a threshold shift required for detection, where the shift is used to identify the gas.