Method and device for determining of explosivity rate of gaseous

Details Method and device for determining of explosivity rate of gaseous Method and device for determining of explosivity rate of gaseous

1983-12-06

1985-09-03

Kreitman, Stephen A.

Measuring and testing

Gas analysis

By vibration

422 94, G01N 2554

Patent

active

045384487

ABSTRACT:
A method and a device for determining explosivity rate of a gaseous medium with a detecting filament which is heated in said medium by an electric current flowing therethrough. Said detecting filament is ignited through connection to a power supply and power supplied to said filament is regulated so as to maintain constant the resistance thereof. At some successive moments value of a quantity U significant for power supplied to said filament is taken into account. An exponential curve is extrapolated from such values; parameters thereof are identified and introduced in a process function adapted to deduce therefrom an estimation of the initial explosivity rate of said gaseous medium independently of the nature of the explosive gas(es) present therein.

REFERENCES:
patent: 3449939 (1969-06-01), Monomakhoff
patent: 3587318 (1971-06-01), Belugou et al.
patent: 4140004 (1979-02-01), Smith et al.
patent: 4388822 (1983-06-01), Heller
patent: 4422073 (1982-12-01), Winner
patent: 4475378 (1984-10-01), Boutonnat et al.

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