The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 02, 2002
Filed:
Feb. 18, 2000
Wilhemus A. deGroot, Rocky River, OH (US);
Joseph A. Powell, Akron, OH (US);
S3 Incorporated, Akron, OH (US);
Abstract
A method for sensing the concentrations of diatomic gases in a flow chamber is achieved by focusing an incident beam of light from a monochromatic light source on a point internal to the flow chamber through a transparent window. The incident excites molecules of the diatomic gas, resulting in emission of scattered light of particular characteristic frequency for each species of diatomic gas, due to the Raman principle. By collecting the scattered light beam from the flow chamber through the window and analyzing the intensity of the collected scattered beam at these characteristic frequencies, the relative concentrations of each of the diatomic gases may be determined.