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Title: Oxygen partial pressure sensor

Abstract

A method for detecting oxygen partial pressure and an oxygen partial pressure sensor are provided. The method for measuring oxygen partial pressure includes contacting oxygen to a solid oxide electrolyte and measuring the subsequent change in electrical conductivity of the solid oxide electrolyte. A solid oxide electrolyte is utilized that contacts both a porous electrode and a nonporous electrode. The electrical conductivity of the solid oxide electrolyte is affected when oxygen from an exhaust stream permeates through the porous electrode to establish an equilibrium of oxygen anions in the electrolyte, thereby displacing electrons throughout the electrolyte to form an electron gradient. By adapting the two electrodes to sense a voltage potential between them, the change in electrolyte conductivity due to oxygen presence can be measured. 1 fig.

Inventors:
Issue Date:
OSTI Identifier:
7163071
Patent Number(s):
5344549 A
Application Number:
PPN: US 8-022593
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; EDB-94-132860
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Resource Relation:
Patent File Date: 17 Feb 1993
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; OXYGEN; PRESSURE MEASUREMENT; PRESSURE GAGES; DESIGN; MEASURING METHODS; PARTIAL PRESSURE; ELEMENTS; MEASURING INSTRUMENTS; NONMETALS; 440800* - Miscellaneous Instrumentation- (1990-)

Citation Formats

Dees, D.W. Oxygen partial pressure sensor. United States: N. p., 1994. Web.
Dees, D.W. Oxygen partial pressure sensor. United States.
Dees, D.W. Tue . "Oxygen partial pressure sensor". United States.
@article{osti_7163071,
title = {Oxygen partial pressure sensor},
author = {Dees, D.W.},
abstractNote = {A method for detecting oxygen partial pressure and an oxygen partial pressure sensor are provided. The method for measuring oxygen partial pressure includes contacting oxygen to a solid oxide electrolyte and measuring the subsequent change in electrical conductivity of the solid oxide electrolyte. A solid oxide electrolyte is utilized that contacts both a porous electrode and a nonporous electrode. The electrical conductivity of the solid oxide electrolyte is affected when oxygen from an exhaust stream permeates through the porous electrode to establish an equilibrium of oxygen anions in the electrolyte, thereby displacing electrons throughout the electrolyte to form an electron gradient. By adapting the two electrodes to sense a voltage potential between them, the change in electrolyte conductivity due to oxygen presence can be measured. 1 fig.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {9}
}