Tomographic Analysis of Line-of-Sight Infrared Spectra of Low-Pressure Flames

Abstract

Line-of-sight Fourier transform infrared absorption spectra through a 17-torr methane/nitrous oxide flame have been tomographically analyzed using Abel's equations. Relative absorbances for N20, CH4, CO2, NO, and CO have been mapped for various 'slices' of the flame at different heights in the flame. Results indicate that the region of maximum NO and CO formation occurs prior to the luminous region of the flame. The technique is shown to be useful in obtaining data from systems for which line of sight data may be unusable.... Tomography, Infrared spectroscopy, Low-pressure flames.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1993
Accession Number
ADA263185

Entities

People

  • Kevin L. McNesby
  • Robert A. Fifer

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Counter WMD
  • Materials and Manufacturing Processes
  • Weapons Technologies

DTIC Thesaurus Topics

  • Absorption
  • Absorption Coefficients
  • Chemical Engineering
  • Chemistry
  • Engineering
  • Equations
  • Infrared Spectra
  • Jet Propulsion
  • Line Of Sight
  • Measurement
  • Mechanical Engineering
  • Military Research
  • Nitrogen Oxides
  • Spectra
  • Spectrometry
  • Spectroscopy
  • Standards

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Image Processing and Computer Vision.
  • Spectroscopy.