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Detection system for use in an aircraft

  • US 5,654,700 A
  • Filed: 06/07/1995
  • Issued: 08/05/1997
  • Est. Priority Date: 04/09/1990
  • Status: Expired due to Fees
First Claim
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1. A detection system including means for monitoring infrared radiation received from above the horizon, means for generating signals representative of said radiation, and processing means for determining the presence of a cloud including silicate bearing minerals on the basis of said signals,wherein said signals are representative of different predetermined wavelengths of said radiation, and said processing means is adapted to compare the signals of at least two of said predetermined wavelengths and generate a cloud warning signal if the results of the comparison indicate a cloud including silicate bearing minerals is present,wherein said warning signal is generated when said signals indicate the radiation received of a longer predetermined wavelength is less than the radiation received of a shorter predetermined wavelength, andwherein said monitoring means includes an infrared detector array and said signals relate to pixels of said array, such that said signals of each of said predetermined wavelengths correspond to each one of said pixels and said processing means generates display signals representative of the position of said cloud relative to said system on the basis of said signals and position signals representative of the position of said system.

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