Modular fiber optic chemical sensor
First Claim
1. A fiber optic sensor comprising:
- a fiber core;
a reactive surface formed on the core;
a capillary tube disposed about the core and reactive surface to form a fiber optic clad and a protective layer for the reactive surface.
2 Assignments
0 Petitions
Accused Products
Abstract
A modular fiber optic chemical sensor (FOCS) is formed using a capillary tube clad. A fiber optic core with reactive surface is exposed to a sample environment and then the capillary tube is fitted over the core. The capillary could also be porous so that in-situ measurements can be made. The capillary can be spaced from the core so that a flow channel for gas and liquid sensing is formed, or an index matching fluid may fill the channel. Measurements can be made in a compact portable modular detector unit in which the FOCS is placed between an excitation source and a detector or single ended where the excitation source and detector are at the same end of the core and a reflector is placed at the end of the core.
39 Citations
20 Claims
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1. A fiber optic sensor comprising:
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a fiber core; a reactive surface formed on the core; a capillary tube disposed about the core and reactive surface to form a fiber optic clad and a protective layer for the reactive surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of forming a fiber optic sensor, comprising:
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forming a reactive surface on a fiber optic core; enclosing the fiber optic core with reactive surface in a capillary tube to form a fiber optic clad. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification