Oxygen sensor

Chemistry: electrical and wave energy – Apparatus – Electrolytic

Patent

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Details

204425, 204426, G01N 2758

Patent

active

044500653

ABSTRACT:
The disclosed oxygen sensor has a plate-like oxygen pump element with electrodes, a plate-like oxygen concentration cell element with electrodes, and 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, so that the oxygen concentration cell element measures a ratio between oxygen concentration in said gap and oxygen concentration of a gas surrounding outside of the oxygen sensor, while said oxygen pump element causes diffusion of oxygen between said gap and the outside of the oxygen sensor.

REFERENCES:
patent: 4272329 (1981-06-01), Hetrick et al.

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