skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Device and method for determining oxygen concentration and pressure in gases

Patent ·
OSTI ID:335442

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. 6 figs.

Research Organization:
Univ. of California (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC03-76SF00098
Assignee:
Univ. of California, Oakland, CA (United States)
Patent Number(s):
US 5,885,843/A/
Application Number:
PAN: 8-815,290
OSTI ID:
335442
Resource Relation:
Other Information: PBD: 23 Mar 1999
Country of Publication:
United States
Language:
English

References (11)

Submillisecond response times of oxygen‐quenched luminescent coatings journal December 1993
Fluorescence Quenching in Aromatic Hydrocarbons by Oxygen journal September 1969
Luminescence Quenching Behavior of an Oxygen Sensor Based on a Ru(II) Complex Dissolved in Polystyrene journal January 1995
Oxygen Sensors Based on Luminescence Quenching: Interactions of Metal Complexes with the Polymer Supports journal December 1994
Photophysics and photochemistry of oxygen sensors based on luminescent transition-metal complexes journal February 1991
Luminescent dicyanoplatinum(II) complexes as sensors for the optical measurement of oxygen concentrations journal February 1993
Optical oxygen sensor based on phosphorescence lifetime quenching and employing a polymer immobilised metalloporphyrin probe: Part 1 theory and instrumentation journal January 1993
Aerogels?Nanoporous materials part I: Sol-gel process and drying of gels journal January 1995
Hydrophobic silica aerogels journal June 1995
Design of oxygen sensors based on quenching of luminescent metal complexes: Effect of ligand size on heterogeneity journal December 1993
Ambient-temperature supercritical drying of transparent silica aerogels journal July 1985