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Device and method for determining oxygen concentration and pressure in gases

United States Patent

March 23, 1999
View the Complete Patent at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
Disclosed are oxygen concentration and/or pressure sensing devices and methods which incorporate photoluminescent silica aerogels. Disclosed sensors include a light proof housing for holding the photoluminescent aerogel, a source of excitation radiation (e.g., a UV source), a detector for detecting radiation emitted by the aerogel, a system for delivering a sample gas to the aerogel, and a thermocouple. Also disclosed are water resistant oxygen sensors having a photoluminescent aerogel coated with a hydrophobic material.
Ayers; Michael R. (El Cerrito, CA), Hunt; Arlon J. (Kensington, CA)
The Regents of the University of California (Oakland, CA)
08/ 815,290
March 7, 1997
This invention was made in the course of or under prime contract number DE-AC03-76SF00098 between the U.S. Department of Energy and the University of California. The government has certain rights in this invention.