A Fortran Code for the Calculation of Probe Volume Geometry Changes in a Laser Anemometry System Caused by Window Refraction.

Abstract

A computer code has been written which utilizes ray tracing techniques to predict the changes in position and geometry of a laser doppler velocimeter probe volume resulting from refraction effects. The code predicts the position change, changes in beam crossing angle, and the amount of uncrossing that occur when the beams traverse a region general axisymmetric and general surface windows and is currently operational on a VAX 8600 computer system. Keywords: Refraction; Ray tracing; Laser Anemometry.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1987
Accession Number
ADA188714

Entities

People

  • Albert K. Owen

Organizations

  • Glenn Research Center

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Army Aviation
  • Axisymmetric
  • Computer Programs
  • Computers
  • Coordinate Systems
  • Data Acquisition
  • Data Sets
  • Geometry
  • Laser Anemometers
  • Laser Beams
  • Optics
  • Procedures (Computers)
  • Ray Tracing
  • Refraction
  • Refractive Index
  • Symmetry

Fields of Study

  • Physics

Readers

  • Aerosol Science/Aerosol Physics
  • Computer Science.
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy