Laser Doppler Velocimetry.

Abstract

Because it uses light scattering, Doppler shift, and optical heterodyne, laser Doppler velocimetry is an extremely powerful diagnostic technique for the measurement of flow velocity components. Its basic principles, optical arrangements, signal processing techniques, and applications are discussed as well as its advantages, disadvantages, and applications in the study of fluid mechanics. Keywords: Flow velocity diagnostic; Doppler shift; Time of flight; laser speckle data processing; Light scattering; Local oscillator; Optical mixing spectroscopy; Reacting flows; Turbulent flows.

Document Details

Document Type
Technical Report
Publication Date
Oct 14, 1986
Accession Number
ADA177833

Entities

People

  • Charles P. Wang

Organizations

  • The Aerospace Corporation

Tags

DTIC Thesaurus Topics

  • Data Processing
  • Doppler Effect
  • Flow
  • Fluid Dynamics
  • Fluid Mechanics
  • Light Scattering
  • Local Oscillators
  • Mechanics
  • Oscillators
  • Scattering
  • Signal Processing
  • Turbulent Flow

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Optical Physics and Photonics.
  • Radar Systems Engineering.

Technology Areas

  • Directed Energy