Electrochemical measuring device for determining the oxygen cont

Details Electrochemical measuring device for determining the oxygen cont Electrochemical measuring device for determining the oxygen cont

1980-11-13

1983-01-11

Tokar, Michael J.

Electricity: measuring and testing

Using ionization effects

For analysis of gas, vapor, or particles of matter

G01N 2700

Patent

active

043684319

ABSTRACT:
Electrochemical measuring device for determining the oxygen content in gases with approximately constant pressure, especially in combustion exhaust gases, with an oxygen ion-conducting solid electrolyte having two electrodes connected to a voltage source, and measuring changes in current. In combination with the electrical measuring device, a constriction is disposed in the path of the constant pressure gas stream with the constriction having a passageway of cross sectional area to pass the gas stream at the velocity of sound under the condition of critical pressure ratio dependent on a ratio of the pressure at the outflow side of the inflow side of the constriction which brings about sound velocity of the gas stream.

REFERENCES:
patent: 3223873 (1965-12-01), Hampton
patent: 3445757 (1969-05-01), Krucoff
patent: 3459039 (1969-08-01), Grey

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