Method for the analysis of a gas sample, analysis...

Details Method for the analysis of a gas sample, analysis... Method for the analysis of a gas sample, analysis...

G - Physics

01

N

G01N 33/00 (2006.01) G01N 27/12 (2006.01) G01N 33/44 (2006.01) G06F 15/20 (1990.01)

Patent

CA 2074939

ABSTRACT Rapid sequences of gas samples (G) are taken to a semi- conductor sensor (60a,b,c) for analysis. The analysis procedure is accelerated by differentiating the semiconductor sensor output signals in time (61) and taking successive gas samples (59) to the semiconductor sensors (60a to 60c) sequentially. In cycle stages in which the semiconductor sensor concerned (60a to 60c) receives no gas samples, the lines and casing are flushed with gas (S). The effect of the flushing process on the semiconductor output signal (A) is minimised by adjusting the flushing gas and/or the flow rate ratio between the flushing gas and the gas sample in the semiconductor region.

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