Laser Doppler Velocimetry.

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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.

Author(s):
Wang, Charles P.
Author Organization(s):
AEROSPACE CORP EL SEGUNDO CA SPACE SYSTEMS DIV
Descriptive Note:
Technical rept.,
Pagination:
0038

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
TR0086(6761)-1, SD-TR-87-06
Contract/Grant Number(s):
F04701-85-C-0086
Monitor Series:
TR-87-06
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*DOPPLER SYSTEMS, *OPTICAL PROCESSING, *LASER VELOCIMETERS, SIGNAL PROCESSING, DATA PROCESSING, LIGHT SCATTERING, OPTICAL PROPERTIES, HETERODYNING, SPECTROSCOPY, TURBULENT FLOW, TIME, FLOW RATE, FLIGHT, DIAGNOSIS(GENERAL), MIXING, LOCAL OSCILLATORS, FLUID MECHANICS, DOPPLER EFFECT, SPECULAR REFLECTION, REACTIVE GASES
Field(s)/Group(s):
Lasers and Masers, Infrared Detection and Detectors
Report Date:
1986 Oct 14