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Coherent optical instrumentation for measurements of particle parametersThe application of cross-beam Laser Doppler Velocimeter (LDV) for sizing small particles was investigated from September 1973 to August 1974. Theoretical results were obtained by analyzing the scattering characteristics of small particles in a cross-beam LDV system. Theoretical calculations based on scalar diffraction theory and Mie scattering theory were performed. Experimental results were also obtained to compare with theoretical predictions. It is concluded that the forward scattering characteristics of small particles in a cross-beam LDV system can be used for particle sizing.
Document ID
19740026079
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Chu, W. P. (Old Dominion Univ. Norfolk, VA, United States)
Date Acquired
September 3, 2013
Publication Date
October 1, 1974
Subject Category
Physics, Atomic, Molecular, And Nuclear
Report/Patent Number
NASA-CR-140446
Accession Number
74N34192
Funding Number(s)
CONTRACT_GRANT: NGR-47-003-088
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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