LASER IR SYSTEM ACCURATELY ANALYZES AUTO EXHAUST GASES

Scientists at General Motors Research Laboratories have built a laser IR system that can make fast and accurate measurements of all the "species of interest" in the exhaust stream--i.e., ammonia, hydrocarbons, and the oxides of carbon, sulfur, and nitrogen. The advent of high-resolution, tunable IR laser diodes solved all the problems of conventional IR spectrometry--in principle. The high-intensity beam allowed evaluation in a fraction of a second. Exact frequencies could be chosen to determine presence and quantity of a selected gas, with no interferences.

  • Corporate Authors:

    American Chemical Society

    1155 16th Street, NW
    Washington, DC  United States  20036
  • Publication Date: 1980-8-4

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Filing Info

  • Accession Number: 00319416
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 15 1981 12:00AM