Methods of making and operating a fiber optic sensing device

Details Methods of making and operating a fiber optic sensing device Methods of making and operating a fiber optic sensing device

2008-04-22

2009-02-17

Wong, Tina M (Department: 2874)

Optical waveguides

Optical waveguide sensor

C385S013000, C385S037000

Reexamination Certificate

active

07492980

ABSTRACT:
In accordance with one exemplary embodiment the invention provides a multi-parameter fiber optic sensing system with an aperiodic sapphire fiber grating as sensing element for simultaneous temperature, strain, NOx, CO, O2and H2gas detection. The exemplary sensing system includes an aperiodic fiber grating with an alternative refractive index modulation for such multi-function sensing and determination. Fabrication of such quasiperiodic grating structures can be made with point-by-point UV laser inscribing, diamond saw micromachining, and phase mask-based coating and chemical etching methods. In the exemplary embodiment, simultaneous detections on multi-parameter can be distributed, but not limited, in gas/steam turbine exhaust, in combustion and compressor, and in coal fired boilers etc. Advantageously, the mapping of multiple parameters such as temperature, strain, and gas using sapphire aperiodic gratings improves control and optimization of such systems directed to improve efficiency and output and reduce emissions.

REFERENCES:
patent: 6587188 (2003-07-01), Gleine et al.
patent: 6591038 (2003-07-01), Pezeshki
patent: 6640020 (2003-10-01), Ionov
patent: 6766080 (2004-07-01), Ohmura et al.
patent: 6999659 (2006-02-01), Nowak et al.
patent: 7053740 (2006-05-01), Lascars et al.
patent: 7127132 (2006-10-01), Moslehi et al.
patent: 2003/0035626 (2003-02-01), Smith
patent: 2003/0152323 (2003-08-01), Wakabayashi et al.
patent: 2004/0179797 (2004-09-01), Po et al.
patent: 2006/0056959 (2006-03-01), Sabol et al.
patent: 2245709 (2003-03-01), None

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