Gas detecting device

Details Gas detecting device Gas detecting device

1990-03-28

1991-05-28

Hille, Rolf

Electrical resistors

Incased, embedded, or housed

Element in insulation with outer metallic sheath

357 51, 338 25, 338 34, 338308, H01L 2966, H01L 2996, H01L 2702, H01C 700

Patent

active

050198858

ABSTRACT:
A gas detecting device includes a substrate and a plurality of gas sensitive elements supported by the substrate. A plurality of predetermined temperatures at which gases are detected are provided. The gas detecting device also includes a plurality of pairs of electrode leads supported by the substrate, each of the plurality of pairs of electrodes being connected to a corresponding one of the gas sensitive elements, and heater leads that are supported by the substrate and heat the plurality of gas sensitive elements so that each of the gas sensitive elements is set at a corresponding one of the plurality of predetermined temperatures.

REFERENCES:
patent: 4624137 (1986-11-01), Johnson et al.
patent: 4654624 (1987-03-01), Hagen et al.
patent: 4706061 (1987-11-01), Johnson

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