Method, system and module for monitoring a power generating...

Details Method, system and module for monitoring a power generating... Method, system and module for monitoring a power generating...

2008-07-15

2008-07-15

Wood, Kevin S (Department: 2874)

Optical waveguides

Optical waveguide sensor

C385S037000

Reexamination Certificate

active

11468162

ABSTRACT:
A sensing module positioned about an optical fiber cable having a long axis. The optical fiber includes a core that transmits light through the optical fiber cable. The sensing module includes a first short-period fiber grating positioned about the core. A second short-period fiber grating is positioned about the core and at a distance along the long axis with respect to the first short-period fiber grating. At least one of a long-aperiod fiber grating and a long-period fiber grating is positioned between the first short-period fiber grating and the second short-period fiber grating. A fiber cladding is positioned around the long-period grating and/or the long-aperiod grating of the sensing module. A sensing skin is positioned about the fiber cladding and includes a chemical gas active material.

REFERENCES:
patent: 2004/0245444 (2004-12-01), MacDougall
patent: 2006/0139741 (2006-06-01), Chen et al.
patent: 2006/0140559 (2006-06-01), Tsuda et al.
patent: 2006/0215959 (2006-09-01), McCarthy et al.
U.S. Appl. No. 11/086,055, filed Mar. 22, 2005, title: “Fiber Optic Sensing Device and Method of Making and Operating the Same”.
U.S. Appl. No. 11/240,057, filed Sep. 30, 2005, title: “Fiber Optic Chemical Sensing Device, System, and Method”.

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