Hydrocarbon sensing methods and apparatus

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United States of America Patent

PATENT NO 10175168
APP PUB NO 20180113072A1
SERIAL NO

15847758

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Abstract

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A sensor for hydrocarbons uses a waveguide with a first cladding layer, a second cladding layer with a measurement region with hydrophobic measurement material, and a core between the first and second cladding layers. Light is coupled into the waveguide. The measurement material is exposed to the hydrocarbon allowing the hydrocarbon to diffuse into it and change refractive index of the material, which changes intensity of light evanescently coupled through the first cladding layer. Light coupled through the first cladding layer is measured to determine exposure of the sensor to the hydrocarbons.

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Patent Owner(s)

Patent OwnerAddress
COLORADO STATE UNIVERSITY RESEARCH FOUNDATION2537 RESEARCH BLVD SUITE 200 P O BOX 483 FORT COLLINS CO 80522

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Erickson, Timothy Beaverton, US 4 22
Lear, Kevin Fort Collins, US 3 22

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