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Proceedings Paper

Application of holographic interferometry to a three-dimensional flow field
Author(s): Steve E. Doerr
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Paper Abstract

The objectives of this work were to develop a holographic interferometry system to measure density distributions about a generic maneuvering reentry vehicle in a hypersonic wind tunnel, to analyze the acquired data for insight into the physics of the flow, and to validate the code used for reference. A dual-plate micropositioner and a digital phase detection technique were used to resolve wavefront phase from the interferograms. An algebraic reconstruction technique was used to solve the ill-posed, linear set of equations that result from a series expansion of the density field. Holographic interferometry was shown to be a viable technique for acquiring the data needed to reconstruct 3D density fields in a hypersonic wind tunnel.

Paper Details

Date Published: 1 December 1991
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Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); doi: 10.1117/12.57439
Show Author Affiliations
Steve E. Doerr, Ktech Corp. (United States)


Published in SPIE Proceedings Vol. 1554:
Second International Conference on Photomechanics and Speckle Metrology
Fu-Pen Chiang; Fu-Pen Chiang, Editor(s)

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