Chemistry: electrical and wave energy – Processes and products
Patent
1985-05-24
1986-02-18
Kaplan, G. L.
Chemistry: electrical and wave energy
Processes and products
204425, G01N 2756
Patent
active
045712859
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.
REFERENCES:
patent: 4310402 (1982-01-01), Isenberg et al.
patent: 4381224 (1983-04-01), Fate et al.
Asada Akiyoshi
Isono Yoshiya
Nakazawa Mitsuhiro
Ohira Hitoshi
Osanai Hiroshi
Fujikura Ltd.
Kaplan G. L.
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