Electro-chemical sensors for gas detection in electron tubes

Details Electro-chemical sensors for gas detection in electron tubes Electro-chemical sensors for gas detection in electron tubes

1977-12-22

1979-04-03

Serwin, R. E.

Chemistry: physical processes

Physical processes

Crystallization

73 27R, 338 34, 422 98, G01N 2704

Patent

active

041475151

ABSTRACT:
An electro-chemical gas sensor for use in electron tubes comprising a crylline body of BaO formed on a non-interacting (chemically and electrically) substrate and at least two electrodes. The change in conductivity of the barium oxide upon exposure to tube gases may be used to determine the type and quantity of gases contaminating the electron emitter and estimate changes in the emitter's work function or electron emission capability due to gas contamination.

REFERENCES:
patent: 3778229 (1973-12-01), Webster et al.
patent: 3924219 (1975-12-01), Braun
patent: 3955929 (1976-05-01), Kawakami et al.
patent: 4015230 (1977-03-01), Nitta et al.
patent: 4045178 (1977-08-01), Okinaka et al.

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