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Method and device for identifying gaseous compounds

  • US 6,636,811 B1
  • Filed: 10/24/2000
  • Issued: 10/21/2003
  • Est. Priority Date: 02/24/1998
  • Status: Expired due to Term
First Claim
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1. Method for determining gaseous compounds, wherein a sample gas stream is lead to a sensor array (1) with several gas sensors (2), wherein the electrical output signal of the individual gas sensors (2) are captured by the evaluation computer (20), wherein the electrical output signals are converted into a characterizing image, are stored and are compared with the images of other gas mixtures,characterized in that the sample gas stream is thinned with a stream of air prior to the feeding into the sensor array (1) and wherein thereby the concentration of the sample gas stream is kept constant to a predetermined value below the saturation concentration.

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