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Multi-Velocity Component LDVA laser doppler velocimeter uses frequency shifting of a laser beam to provide signal information for each velocity component. A composite electrical signal generated by a light detector is digitized and a processor produces a discrete Fourier transform based on the digitized electrical signal. The transform includes two peak frequencies corresponding to the two velocity components.
Document ID
19960033281
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Johnson, Dennis A.
(NASA Moffett Field, CA United States)
Date Acquired
August 17, 2013
Publication Date
June 11, 1996
Subject Category
Lasers And Masers
Report/Patent Number
US-Patent-Class-356-28.5
Patent Number: US-Patent-5,526,109
Report Number: US-Patent-Class-356-28.5
Patent Number: NASA-ARC-11925-1-GE
Patent Application Number: US-Patent-Appl-SN-727263
Accession Number
96N30082
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-5,526,109|NASA-ARC-11925-1-GE
Patent Application
US-Patent-Appl-SN-727263
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