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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.

Inventors:
 [1];  [2]
  1. El Cerrito, CA
  2. Kensington, CA
Issue Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
OSTI Identifier:
872210
Patent Number(s):
5885843
Assignee:
Regents of University of California (Oakland, CA)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
device; method; determining; oxygen; concentration; pressure; gases; disclosed; sensing; devices; methods; incorporate; photoluminescent; silica; aerogels; sensors; light; proof; housing; holding; aerogel; source; excitation; radiation; detector; detecting; emitted; delivering; sample; gas; thermocouple; water; resistant; coated; hydrophobic; material; pressure sensing; excitation radiation; detecting radiation; oxygen sensor; oxygen concentration; sensing device; sample gas; radiation emitted; sensing devices; silica aerogels; silica aerogel; oxygen sensors; hydrophobic material; /436/422/

Citation Formats

Ayers, Michael R, and Hunt, Arlon J. Device and method for determining oxygen concentration and pressure in gases. United States: N. p., 1999. Web.
Ayers, Michael R, & Hunt, Arlon J. Device and method for determining oxygen concentration and pressure in gases. United States.
Ayers, Michael R, and Hunt, Arlon J. Fri . "Device and method for determining oxygen concentration and pressure in gases". United States. https://www.osti.gov/servlets/purl/872210.
@article{osti_872210,
title = {Device and method for determining oxygen concentration and pressure in gases},
author = {Ayers, Michael R and Hunt, Arlon 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

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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