EVALUATION OF LDV PERFORMANCE USING MIE SCATTERING THEORY.

Ronald Adrian, Walter L. Earley

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Scopus citations

Abstract

A computer code has been developed to evaluate the performance parameters of a general fringe mode LDV (Adrian/Earley paper) including Doppler signal strength, pedestal signal strength, and signal-to-shot noise ratio, using the Mie scattering theory for spherical scattering particles. The variable parameters in the program are the particle size and refractive index, the laser wavelength, the refractive index of the fluid surrounding the particle, the geometry of the illuminating beams, the direction of observation of the scattered light, and the size and shape of the light receiving aperture. Results are presented in the form of global maps of the SNR for all angles of observations, and expanded maps of the SNR as a function of position on a symmetrically located backscatter light receiving aperture. In addition, the effects of receiving aperture design have been investigated by calculating the total light flux through various shaped apertures as a function of aperture size.

Original languageEnglish (US)
Title of host publicationIll Univ Dep Theor Appl Mech TAM Rep
Edition405
StatePublished - 1975
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

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    Adrian, R., & Earley, W. L. (1975). EVALUATION OF LDV PERFORMANCE USING MIE SCATTERING THEORY. In Ill Univ Dep Theor Appl Mech TAM Rep (405 ed.)