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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 25, Iss. 21 — Nov. 1, 1986
  • pp: 3919–3923

Three-dimensional gas concentration and gradient measurements in a photoacoustically perturbed jet

Brandon Yip, Dominique C. Fourguette, and Marshall B. Long  »View Author Affiliations


Applied Optics, Vol. 25, Issue 21, pp. 3919-3923 (1986)
http://dx.doi.org/10.1364/AO.25.003919


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Abstract

The 3-D measurement of the gas concentration in a photoacoustically forced gas jet is described. A pulsed laser focused onto a laminar gas flow was used to trigger a localized disturbance which evolved with time. After a fixed time delay, the gas concentration in a 2-D cross section of the jet was measured by recording Rayleigh scattering from a second laser used to illuminate a thin sheet intersecting the flow. A series of these 2-D measurements made at the same time delay resulted in a full 3-D mapping of structures within the flow. Computer graphics enabled the subsequent reconstruction and visualization of the 3-D surfaces of constant concentration as well as the magnitude of the concentration gradient on such surfaces.

© 1986 Optical Society of America

History
Original Manuscript: March 29, 1986
Published: November 1, 1986

Citation
Brandon Yip, Dominique C. Fourguette, and Marshall B. Long, "Three-dimensional gas concentration and gradient measurements in a photoacoustically perturbed jet," Appl. Opt. 25, 3919-3923 (1986)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-25-21-3919

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