Hydrogen gas detector

Details Hydrogen gas detector Hydrogen gas detector

1980-01-10

1981-11-03

Turk, Arnold

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

73 27R, 422 98, G01N 2716

Patent

active

042985749

ABSTRACT:
A differential thermocouple hydrogen gas detector (10) is provided by coating one thermocouple junction (34) of a differential thermocouple pair (34, 36) with a Palladium-Silver alloy catalyst (46) and the other thermocouple junction (36) with a non-catalyst (52). Heated hydrogen gas reacts with the catalyst (46) to liberate heat to the catalyst coated thermocouple junction (34) in proportion to the concentration of hydrogen gas and proportionally raise the temperature of the catalyst coated junction (34) above that of the non-catalyst coated junction (36). The output signal (44) from the differential thermocouple device (34, 36) thus provides an output signal indicative of the concentration of hydrogen gas.

REFERENCES:
patent: 2349250 (1944-05-01), Doan
patent: 2904406 (1959-09-01), Moore
patent: 3437446 (1969-04-01), Pierce
patent: 3479257 (1969-11-01), Shaver
patent: 3549327 (1970-12-01), Fergusson
patent: 3866460 (1975-02-01), Pearce, Jr.
patent: 4063898 (1977-12-01), Fisher

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