Temperature-Compensated High-Resolution Infrared Absorption Spectroscopy: Application to Carbon Monoxide

Abstract

The analytic basis of an optical absorption technique suitable for a single line-of-sight determination of average gaseous species number densities in the presence of concentration, pressure and temperature gradients, and particulate loading is presented and applied to carbon monoxide (CO). Applying the technique involves using the power of very high-resolution infrared (IR) spectroscopy, now made available by tunable diode lasers. The method requires the construction of functions of molecular line strengths that are nearly temperature independent. A method of constructing these functions is described and applied to the case of CO. Possible applications to practical combustion systems are also outlined.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1981
Accession Number
ADA094004

Entities

People

  • C. J. Fisher
  • W. P. Dixon

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Absorption Coefficients
  • Absorption Spectra
  • Air Force
  • Carbon Monoxide
  • Combustion
  • Construction
  • Dielectric Gases
  • Engineering
  • High Resolution
  • Laser Spectroscopy
  • Line Of Sight
  • Measurement
  • Spectroscopy
  • Temperature Gradients
  • Uncertainty
  • United States

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Mechanical Engineering/Mechanics of Materials.
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers