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Applied Optics

Applied Optics


  • Vol. 38, Iss. 15 — May. 20, 1999
  • pp: 3394–3398

Abel inversion of deflectometric measurements in dynamic flows

Ajay K. Agrawal, Burt W. Albers, and DeVon W. Griffin  »View Author Affiliations

Applied Optics, Vol. 38, Issue 15, pp. 3394-3398 (1999)

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We present an Abel-inversion algorithm to reconstruct mean and rms refractive-index profiles from spatially resolved statistical measurements of the beam-deflection angle in time-dependent, axisymmetric flows. An oscillating gas-jet diffusion flame was investigated as a test case for applying the algorithm. Experimental data were obtained across the whole field by a rainbow schlieren apparatus. Results show that simultaneous multipoint measurements are necessary to reconstruct the rms refractive index accurately.

© 1999 Optical Society of America

OCIS Codes
(110.6960) Imaging systems : Tomography
(120.1740) Instrumentation, measurement, and metrology : Combustion diagnostics
(120.5710) Instrumentation, measurement, and metrology : Refraction

Original Manuscript: October 26, 1998
Revised Manuscript: February 4, 1999
Published: May 20, 1999

Ajay K. Agrawal, Burt W. Albers, and DeVon W. Griffin, "Abel inversion of deflectometric measurements in dynamic flows," Appl. Opt. 38, 3394-3398 (1999)

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