OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 9, Iss. 5 — May. 1, 1970
  • pp: 1026–1039

Laser Doppler Detection Systems for Gas Velocity Measurement

R. M. Huffaker  »View Author Affiliations


Applied Optics, Vol. 9, Issue 5, pp. 1026-1039 (1970)
http://dx.doi.org/10.1364/AO.9.001026


View Full Text Article

Enhanced HTML    Acrobat PDF (1501 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

The velocity of gas flow has been remotely measured using a technique which involves the coherent detection of scattered laser radiation from small particles suspended in the fluid utilizing the doppler effect. Suitable instrumentation for the study of wind tunnel type and atmospheric flows are described. Mainly for reasons of spatial resolution, a function of the laser wavelength, the wind tunnel system utilizes an argon laser operating at 0.5 μ. The relaxed spatial resolution requirement of atmospheric applications allows the use of a carbon dioxide laser, which has superior performance at a wavelength of 10.6 μ, a deduction made from signal-to-noise ratio considerations. Theoretical design considerations are given which consider Mie scattering predictions, two-phase flow effects, photomixing fundamentals, laser selection, spatial resolution, and spectral broadening effects. Preliminary experimental investigations using the instrumentation are detailed. The velocity profile of the flow field generated by a 1.27-cm diam subsonic jet was investigated, and the result compared favorably with a hot wire investigation conducted in the same jet. Measurements of wind velocity at a range of 50 m have also shown the considerable promise of the atmospheric system.

© 1970 Optical Society of America

History
Original Manuscript: July 9, 1969
Published: May 1, 1970

Citation
R. M. Huffaker, "Laser Doppler Detection Systems for Gas Velocity Measurement," Appl. Opt. 9, 1026-1039 (1970)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-9-5-1026


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. S. L. Soo, Fluid Dynamics of Multiphase Systems (Blaisdell Publishing Company, Waltham, Massachusetts, 1967).
  2. A. E. Siegman, Proc. IEEE 54, 1350 (1964). [CrossRef]
  3. S. Corrsin, U. Corrsin, S. Mahinder, “Further Experiments on the Flow and Heat Transfer in a Heated Turbulent Air Jet,” NACA Rept. 998 (1950).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited