Diode-laser Doppler velocimeter measures nonintrusively flow of incompressible fluid in narrow tube. New velocimeter rugged, compact, and competitive in cost. Includes three-section optical head mounted on tube containing flow. In slightly different version, beam splitter and mirror used to split laser beam into two beams.
Diode-Laser Doppler Velocimeter
NASA Tech Briefs ; 13 , 8
1989-08-01
Miscellaneous
No indication
English
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