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. 10, 2009
Filed:
Mar. 28, 2008
Hua Xia, Altamont, NY (US);
Jeffrey Scott Goldmeer, Latham, NY (US);
Kevin Thomas Mccarthy, Troy, NY (US);
Aditya Kumar, Schenectady, NY (US);
Ravindra Annigeri, Roswell, GA (US);
Ertan Yilmaz, Albany, NY (US);
Avinash Vinayak Taware, Rexford, NY (US);
Yu Zhao, Niskayuna, NY (US);
Hua Xia, Altamont, NY (US);
Jeffrey Scott Goldmeer, Latham, NY (US);
Kevin Thomas McCarthy, Troy, NY (US);
Aditya Kumar, Schenectady, NY (US);
Ravindra Annigeri, Roswell, GA (US);
Ertan Yilmaz, Albany, NY (US);
Avinash Vinayak Taware, Rexford, NY (US);
Yu Zhao, Niskayuna, NY (US);
General Electric Company, Niskayuna, NY (US);
Abstract
A fiber gas sensor includes a fiber core with first and second refractive index periodic modulated grating structures having different amplitude modulation profiles positioned about the fiber core. A fiber cladding is positioned about the first and second refractive index periodic modulated grating structures. A sensing layer is positioned about the fiber cladding of one of the refractive index periodic modulated grating structures. The sensing layer includes a sensing material made of a Pd-based alloy, such as nano-PdOx, nano-Pd(x)Au(y)Ni(1-x-y) or nano-Pd/Au/WOx. The fiber gas sensor provides a measurement of localized, temperature-corrected gas concentration and composition from a combustion environment. A reflection-based or a transmission-based sensing system with an array of one or more fiber gas sensors is also described.