Oxygen sensor

Details Oxygen sensor Oxygen sensor

1983-08-23

1985-02-12

Kaplan, G. L.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204425, 204426, G01N 2758

Patent

active

044989687

ABSTRACT:
The disclosed oxygen sensor has a plate-like oxygen pump element with electrodes, a plate-like oxygen concentration cell element with electrodes, a means to couple the two elements in parallel to each other while forming a gap between those electrodes of the two elements which face with each other, and an oxygen diffusion resistive layer deposited on that electrode of the pump element which faces said gap, whereby said pump element pumps out oxygen from said gap so as to produce such an oxygen partial pressure in the gap under the presence of said oxygen diffusion resistive layer that the oxygen concentration of a gas surrounding the oxygen sensor is detected by coaction of said two elements.

REFERENCES:
patent: 3650934 (1972-03-01), Hickam et al.
patent: 4272329 (1981-06-01), Hetrick et al.
patent: 4272330 (1981-06-01), Hetrick
patent: 4272331 (1981-06-01), Hetrick
patent: 4304652 (1981-12-01), Chiba et al.
patent: 4305803 (1981-12-01), Beyer et al.
patent: 4391691 (1983-07-01), Linder et al.
patent: 4394222 (1983-07-01), Rohr

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