Back to results
US 5,349,181 AGranted
Fiber optic chemical sensor having specific channel connecting design
AssigneeFCI - FiberChem, Inc.
InventorsDevinder P. Saini, Tommy J. Law
Life of this patent
Estimating the term…
Abstract
In a sensor assembly, an optical fiber with a sensing region is connected at one end through a fiber guide tube to a detector housing containing a sensing detector. At the other end the fiber is connected through a fiber guide tube to a light source which has a reference detector mounted laterally thereto. The sensing and reference detectors are a matched pair of the same type. The guide tube in the source has a bevelled end which reflects a portion of light from the source to the reference detector.
Claims10
A fiber optic chemical sensor, comprising:
- an optical fiber having a sensing region formed on a portion thereof;
- a sensing detector housing defining a channel therein;
- a sensing detector mounted in said sensing detector housing channel;
- a first fiber guide tube extending into said sensing detector housing and communicating with said channel formed therein;
- wherein one end of said fiber extends into said first tube and is optically aligned with said sensing detector;
- a light source having a channel formed therein and a light emitting region aligned with said channel;
- a second fiber guide tube extending into said source channel;
- wherein the opposed end of said fiber extends into said second tube and is optically aligned with said source;
- a reference detector mounted laterally on said source for receiving a portion of light emitted from said source.
6 more elements
Dependencies are inferred from the claim text.