Measuring cell for an electrochemical gas sensor

Details Measuring cell for an electrochemical gas sensor Measuring cell for an electrochemical gas sensor

1990-06-22

1991-01-29

Kaplan, G. L.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204415, G01N 2740

Patent

active

049884298

ABSTRACT:
The invention is directed to a measuring cell for an electrochemical gas sensor having an electrolytic chamber and a measuring electrode as well as a counter electrode. In the direction facing the ambient, the measuring electrode includes a diffusion membrane as well as a diffusion barrier. The diffusion barrier is made of a material which is a good conductor of heat and is provided with a plurality of passages. A temperature-sensitive element is provided in the immediate proximity of these passages and faces toward the ambient. With this configuration, the temperature dependency of the diffusion capacity of the gas sample passing through the diffusion barrier can be included in the processing of the signal indicative of the measurement.

REFERENCES:
patent: 4338174 (1982-07-01), Tamura
G. Voorn et al., Science and Industry, No. 16, pp. 49-50 (1980).

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