Combustible gas detector having catalytic sensor stabilizing net

Details Combustible gas detector having catalytic sensor stabilizing net Combustible gas detector having catalytic sensor stabilizing net

1988-10-19

1989-08-08

Noland, Tom

Measuring and testing

Gas analysis

By vibration

G01N 2718

Patent

active

048541559

ABSTRACT:
A catalytic gas detector circuit in which the temperature of a resistance gas sensing element, contained in a bridge circuit, is temporarily increased by energizing a current changing network for a finite period of time sufficiently long enough to burn impurities off of the surface of the sensing element.

REFERENCES:
patent: 3519391 (1970-07-01), Winter et al.
patent: 4011538 (1977-03-01), Froemel
patent: 4123934 (1978-11-01), Hoht
patent: 4196622 (1980-04-01), Peter
patent: 4341114 (1982-07-01), Plapp
patent: 4373383 (1983-02-01), Plapp et al.
patent: 4420971 (1983-12-01), Rapps et al.
patent: 4451816 (1984-05-01), Ball

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