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Electronic Rotator For Sheet Of Laser LightPrimary flow-visualization system in Basic Aerodynamic Research Tunnel (BART) at NASA Langley Research Center is sheet of laser light generated by 5-W argon-ion laser and two-axis mirror galvanometer scanner. Generates single and multiple sheets of light, which remain stationary or driven to sweep out volume. Sine/cosine potentiometer used to orient two galvanometer/mirror devices simultaneously and yields desired result at reasonable cost and incorporated into prototype in 1 day.
Document ID
19890000538
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Franke, John M. (NASA Langley Research Center, Hampton, VA.)
Rhodes, David B. (NASA Langley Research Center, Hampton, VA.)
Leighty, Bradley D. (NASA Langley Research Center, Hampton, VA.)
Jones, Stephen B. (NASA Langley Research Center, Hampton, VA.)
Date Acquired
August 14, 2013
Publication Date
November 1, 1989
Publication Information
Publication: NASA Tech Briefs
Volume: 13
Issue: 11
ISSN: 0145-319X
Subject Category
Electronic Components And Circuits
Report/Patent Number
LAR-13836
Accession Number
89B10538
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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