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

Abstract

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.

Inventors:
;
Issue Date:
Research Org.:
Univ. of California (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
335442
Patent Number(s):
5885843
Application Number:
PAN: 8-815,290
Assignee:
Univ. of California, Oakland, CA (United States)
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 23 Mar 1999
Country of Publication:
United States
Language:
English
Subject:
40 CHEMISTRY; MONITORS; OXYGEN; GAS ANALYSIS; SILICA GEL; PHOTOLUMINESCENCE; ULTRAVIOLET RADIATION; RADIATION DETECTORS

Citation Formats

Ayers, M R, and Hunt, A J. Device and method for determining oxygen concentration and pressure in gases. United States: N. p., 1999. Web.
Ayers, M R, & Hunt, A J. Device and method for determining oxygen concentration and pressure in gases. United States.
Ayers, M R, and Hunt, A J. Tue . "Device and method for determining oxygen concentration and pressure in gases". United States.
@article{osti_335442,
title = {Device and method for determining oxygen concentration and pressure in gases},
author = {Ayers, M R and Hunt, A J},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {3}
}

Works referenced in this record:

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


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