Amperometric sensor for low level dissolved oxygen with...

Chemistry: electrical and wave energy – Apparatus – Electrolytic

Reexamination Certificate

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C205S783000, C205S782500

Reexamination Certificate

active

10453350

ABSTRACT:
A dissolved oxygen sensor having a cathode and anode immersed in an electrolyte is designed to provide a low background current in the sensor when a potential is applied to the cathode. The background current is maintained at a desired level by selecting the area and length of a channel or path of diffusion of residual oxygen in the electrolyte to the cathode. The area (A) of the diffusion channel in relation to its length (L) is selected to be at or below a selected ratio, A/L.

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