Electrolytic sensor for measuring the content of gas in a fluid

Details Electrolytic sensor for measuring the content of gas in a fluid Electrolytic sensor for measuring the content of gas in a fluid

1992-01-07

1994-09-06

Tung, T.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

20415317, 204414, G01N 27404

Patent

active

053445457

ABSTRACT:
A gas sensor e.g. an oxygen sensor for testing body fluids, has a laminated structure with a cavity for holding a gel or liquid electrolyte in contact with a cathode and anodes formed by deposition on layers of the structure. The cathode contacts the electrolyte cavity only at a small-volume reaction region defined e.g. in a groove which communicates with a larger, laminar volume of the cavity formed e.g. by a spacer layer having through apertures. A small gas-permeable window opposes the cathode at the reaction region. The laminar construction can be mass-produced. The enlarged electrolyte reservoir lengthens the sensor life.

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