Oxygen concentration detector

Details Oxygen concentration detector Oxygen concentration detector

1982-05-28

1985-03-19

Tung, T.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204412, 204426, 204427, 204429, 219505, 219553, 422 98, G01N 2746

Patent

active

045058032

ABSTRACT:
The disclosed oxygen concentration detector includes at least one resistive body and at least one semiconductor whose resistance varies with oxygen partial pressure, and an alternating current of a specific frequency is applied to the resistive body so as to raise the temperature thereof, which resistive body is adapted to heat the semiconductor.

REFERENCES:
patent: 3751968 (1973-08-01), Loh et al.
patent: 3924098 (1975-12-01), Dunn
patent: 4101454 (1978-07-01), Kulwicki et al.
patent: 4224280 (1980-09-01), Takahama et al.
patent: 4293838 (1981-10-01), Wahlers et al.
patent: 4298573 (1981-11-01), Fujushiro
patent: 4321577 (1982-03-01), Carlson
patent: 4338281 (1982-07-01), Treitinger et al.
patent: 4407704 (1983-10-01), Mase et al.

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