METHOD FOR THE ANALYSIS OF A GAS SAMPLE, ANALYSIS ARRANGEMENT, USES THEREOF AND TEST PLANT COMPRISING THE SAID ARRANGEMENT

摘要

Rapid sequences of gas samples (G) are taken to a semiconductor 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.