Sensor for combustible gases

Details Sensor for combustible gases Sensor for combustible gases

1995-10-13

1996-08-27

Snay, Jeffrey

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

338 34, G01N 2716

Patent

active

055498710

ABSTRACT:
A combustible gas sensor comprises four glass insulated radially extended and symmetrical temperature sensitive elements which are coated with a porous ceramic but only two elements having a catalyst. The sensor is mounted inside a temperature controlled reactor vessel in a region of no temperature gradient into which a combustible gas mixture is admitted and reacted on the catalytic surfaces. The change in the resistance of the elements under the catalyst is a measure of the concentration of the combustible gas.

REFERENCES:
patent: 3092799 (1963-06-01), Baker
patent: 3200011 (1965-08-01), Baker
patent: 3564474 (1971-02-01), Firth et al.
patent: 4325912 (1982-04-01), Sawa et al.
patent: 4355056 (1982-10-01), Dalla Betta et al.
patent: 4572900 (1986-02-01), Wohltjen
patent: 4870025 (1989-09-01), Hurley et al.
patent: 5338515 (1994-08-01), Dalla Betta et al.

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