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Gas leak detector

  • US 6,680,778 B2
  • Filed: 11/08/2001
  • Issued: 01/20/2004
  • Est. Priority Date: 11/08/2001
  • Status: Expired due to Term
First Claim
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1. A method for detecting the presence of a particular gas in a volume of gas comprising the steps of:

  • (a) presenting an image multispectral sensing apparatus operable for measuring the spectral composition of light emanating from a remote volume of gas, the apparatus having a light input aperture;

    then (b) gathering light from said volume of gas and focusing an image containing said light on said input aperture;

    then (c) measuring the spectral composition of light from different parts of the image to determine the spectral distribution, the spectral distribution indicating the presence of a gas leak.

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