A theory and method for applying interferometry to the measurement of certain two-dimensional gaseous density fields

Walton L. Howes, Donald R. Buchele
naca-tn-2693
Apr 1952


A theory and method are described for the application of interferometry to the measurement of certain two-dimensional gaseous density fields. The theory includes the effects of optical refraction upon the observed interference pattern. Exact equations denoting the relative density difference corresponding to an observed interference-fringe shift and the optical distortion caused by refraction are derived.

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