Oxygen sensor for and method of determining concentration of oxygen
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United States of America Patent
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Feb 18, 1986
Grant Date -
N/A
app pub date -
May 24, 1985
filing date -
May 29, 1984
priority date (Note) -
Expired
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Abstract
An oxygen sensor for determining the partial pressure of oxygen in a monitored gas environment includes a diffusion housing of zirconia based material having a gas diffusion aperture, an oxygen ion conductive plate of zirconia based material, a pair of electrode layers mounted on opposite sides of the conductive plate, and a sealing glass material sealingly bonding the conductive plate at one side to the housing to provide a diffusion chamber defined by the diffusion housing and the conductive plate. The electrodes are connectable to a power source for being supplied with an electric potential to pump oxygen ion out of the diffusion chamber through the conductive plate to flow a current through the electrodes which current is indicative of the partial pressure of the oxygen in the monitored gas environment. The sealing glass material contains SiO.sub.2, BaO, Na.sub.2 O and ZrO.sub.2.
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