Combustible gas detection system

Details Combustible gas detection system Combustible gas detection system

1980-08-04

1981-12-15

Serwin, Ronald

Chemistry: physical processes

Physical processes

Crystallization

422 94, 422 96, 422 98, 324 71R, 73 27R, G01N 2746, G01N 3322

Patent

active

043057241

ABSTRACT:
Methods and apparatus for measuring combustible gases in which an active sensor is maintained at controlled, temperature in respect of a reference sensor by means of a bridge-sampling system and a variable duty cycle system responsive to the bridge sampling system adapted to periodically bypass the current from the active sensor in a reference bridge network.

REFERENCES:
patent: 3791936 (1974-02-01), Pebler et al.
patent: 4128458 (1978-12-01), Obiaya
patent: 4170455 (1979-10-01), Henrie

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