Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1984-11-02
1986-12-09
Kaplan, G. L.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204406, 204408, G01N 2752
Patent
active
046279075
ABSTRACT:
An oxygen sensor having increased stability in its sensitivity is provided. The oxygen sensor includes a sensing electrode spaced from a cadmium counter electrode. An alkaline electrolyte extends between the electrodes and permits the formation of cadmium hydroxide in the counter electrode as the cell is used. An electrical circuit connects the counter electrode and sensing electrode externally of the cell. The circuit includes a resistor and thermistor network and a voltmeter. Readings on the voltmeter can be calibrated to show the concentration of ambient oxygen diffusing a polymer membrane to the sensor electrode.
REFERENCES:
patent: 3719575 (1973-03-01), Niedrach et al.
patent: 3767552 (1973-10-01), Lauer
patent: 3948746 (1976-04-01), Poole
patent: 4132616 (1979-01-01), Tantram et al.
Niedrach Leonard W.
Will Fritz G.
Davis Jr. James C.
General Electric Company
Kaplan G. L.
Rochford Paul E.
Webb II Paul R.
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