Accession Number:

ADA073700

Title:

Nonorthogonal Measurement Axes in Laser Doppler Velocimetry.

Descriptive Note:

Final rept. Oct 77-Sep 78,

Corporate Author:

ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFS TN

Personal Author(s):

Report Date:

1979-08-01

Pagination or Media Count:

28.0

Abstract:

The measurement axes of virtually all multiaxis laser Doppler velocimeter LDV systems are nonorthogonal to some degree and are, in general, rotated with respect to orthogonal, Cartesian reference axes. Systematic errors are introduced into the LDV data if axis nonorthogonality and spatial orientation parameters are not properly taken into account by the data reduction equations. This report develops the general 3-space expressions for velocity vector magnitude and spatial orientation in terms of rotated, oblique LDV measurement axis parameters and the velocity vector projections measured by each of these axes. Author

Subject Categories:

  • Lasers and Masers
  • Test Facilities, Equipment and Methods
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE