Method for manufacturing gas composition detector

Details Method for manufacturing gas composition detector Method for manufacturing gas composition detector

1977-07-20

1980-09-30

Smith, John D.

Coating processes

Electrical product produced

Resistor for current control

204195S, 427125, 427245, 427304, 427380, 4273835, 427426, F01N 300, B01J 3504

Patent

active

042256348

ABSTRACT:
A gas composition detector, particularly an oxygen concentration detector includes a metal oxide an electrical resistance or an electromotive force of which is changed by oxygen ions which are conducted in accordance with a difference between an oxygen concentration of gas being examined and an oxygen concentration of a reference gas. A surface of the metal oxide is coated with a conductive metal electrode, and a metal which is the same as or different than the conductive metal penetrates into the metal oxide at the interface of the metal oxide and the conductive metal, whereby the tear-off of the electrode is prevented.

REFERENCES:
patent: 2950996 (1960-08-01), Place, Sr. et al.
patent: 3630768 (1971-12-01), Bianchi
patent: 3653946 (1972-04-01), Fefferman
patent: 3841987 (1974-10-01), Friese et al.
patent: 3843400 (1974-10-01), Radford
patent: 3935089 (1976-01-01), Togawa
patent: 3978006 (1976-08-01), Topp
patent: 3983266 (1976-09-01), Bahls
patent: 4080276 (1978-03-01), Bode

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