Combustion Gas Measurements Using Tunable Laser Absorption Spectroscopy.

Abstract

Applications of tunable infrared diode lasers for combustion gas measurements are described. The diode laser serves as a source of narrow-linewidth infrared radiation whose wavelength can be rapidly modulated to perform fast, high-resolution absorption spectroscopy. Measurements of fully resolved vibration-rotation lines in the fundamental band of CO are used to infer temperature, CO species concentrations and CO collisions halfwidths in the post-flame gases of a flat flame burner. The feasibility of diode laser measurements in fluctuating and particle-laden combustion flows is also demonstrated. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 15, 1979
Accession Number
ADA068769

Entities

People

  • Ronald Kenneth Hanson

Organizations

  • Stanford University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Carbon Monoxide
  • Combustion
  • Detectors
  • Dielectric Gases
  • Infrared Radiation
  • Laser Beams
  • Laser Diodes
  • Laser Spectroscopy
  • Lasers
  • Measurement
  • Modulation
  • Partial Pressure
  • Radiation
  • Scattering
  • Spectroscopy
  • Tunable Lasers

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Optical Physics and Photonics.
  • Spectroscopy.

Technology Areas

  • AI & ML
  • Directed Energy
  • Directed Energy - Lasers