Unitary self-referencing combined dual gas sensor

Details Unitary self-referencing combined dual gas sensor Unitary self-referencing combined dual gas sensor

1988-03-30

1989-05-09

Tung, T.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204424, 204427, G01N 2746

Patent

active

048286710

ABSTRACT:
A solid electrolyte dual gas sensor 10 is made, containing a container body of a first solid electrolyte 11, in contact with a monitor electrode 17 exposed to a monitored gas environment 13 containing selected gas components to be measured, and in contact with a reference electrode 15 which is additionally isolated from the monitored gas environment by a second solid electrolyte 16, and optionally 14, where the second solid electrolyte, at the operating temperature of the gas sensor, is effective to dissociate to provide the sole source of self-generated gases at the reference electrode 15, corresponding to the selected gas components to be measured in the monitored gas environment, where, at the operating temperature of the sensor, the first solid electrolyte 11 is effective to conduct oxygen ions, and the second solid electrolyte 16 is effective to conduct ions selected from the group of sodium ions, potassium ions, and their mixtures.

REFERENCES:
patent: 3915830 (1975-10-01), Isenberg
patent: 4295939 (1981-10-01), Poirier et al.
patent: 4306957 (1981-12-01), Ishitani et al.
patent: 4377460 (1983-03-01), Hirayama et al.
patent: 4388155 (1983-06-01), Chamberland et al.
patent: 4391690 (1983-07-01), Lin et al.
patent: 4394240 (1983-07-01), Pebler
patent: 4399017 (1983-08-01), Inoue et al.
patent: 4427525 (1984-01-01), Lin et al.
patent: 4622105 (1986-11-01), Liu et al

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