Dissolved oxygen electrode with verification system

Details Dissolved oxygen electrode with verification system Dissolved oxygen electrode with verification system

1991-11-26

1993-06-01

Niebling, John

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204415, 204431, 204432, G01N 2726

Patent

active

052156443

ABSTRACT:
An improved oxygen sensing electrode assembly is provided with first and second electrodes mounted within a cavity of a housing substrate. An oxygen permeable diaphragm closes the cavity and contains an appropriate electrolyte solution. A third electrode is mounted in the cavity, while a fourth electrode is mounted on the exterior of the housing. The third and fourth electrodes can be activated to monitor the condition of the electrolyte whereby the operability of the electrode assembly can be verified during an oxygen sensing measurement.

REFERENCES:
patent: 4900422 (1990-02-01), Bryan et al.
patent: 5098547 (1992-03-01), Bryan et al.

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