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Applied Optics

Applied Optics


  • Vol. 12, Iss. 12 — Dec. 1, 1973
  • pp: 2913–2916

Two-Color Dual-Beam Backscatter Laser Doppler Velocimeter

George R. Grant and Kenneth L. Orloff  »View Author Affiliations

Applied Optics, Vol. 12, Issue 12, pp. 2913-2916 (1973)

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A laser Doppler velocimeter has been developed that uses two of the colors emitted from an argon-ion laser for the simultaneous measurement of orthogonal velocities. Designed for use in a 2.13-m by 3.05-m wind tunnel, it is capable of traversing its focal volume across spatially unstable flows at scan speeds of up to 1.5 m/sec. Its optical layout and principles of operation are discussed, and the data from a typical traversal of a trailing wing-tip vortex are presented.

© 1973 Optical Society of America

Original Manuscript: May 2, 1973
Published: December 1, 1973

George R. Grant and Kenneth L. Orloff, "Two-Color Dual-Beam Backscatter Laser Doppler Velocimeter," Appl. Opt. 12, 2913-2916 (1973)

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