Rotational Temperature Estimation of CO at High Temperatures by Graphical Methods Using FTIR Spectrometry

Abstract

Rotational temperatures are obtained from gas phase Fourier transform infrared spectra of CO using graphical methods over the temperature range 302- 773 K. Peak absorbances of individual ro-vibrational transitions are corrected for instrumental distortion and are then fit to a Boltzman distribution to obtain the rotational temperature of the gas. A solution to the convolution integral for FTIR spectrometry is obtained by numerical integration. In all cases, temperatures obtained by graphical analysis yielded gas temperatures within 10% of actual.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1990
Accession Number
ADA228370

Entities

People

  • Kevin L. McNesby
  • Robert A. Fifer

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Absorption Spectra
  • Chemical Engineering
  • Chemistry
  • Distortion
  • Emission Spectra
  • Emission Spectroscopy
  • Engineering
  • High Temperature
  • Jet Propulsion
  • Low Temperature
  • Measurement
  • Mechanical Engineering
  • Military Research
  • Spectra
  • Spectrometry
  • Spectroscopy
  • Standards

Readers

  • Analytical Chemistry
  • Calculus or Mathematical Analysis
  • Molecular Photonics/Laser Physics