Abstract
This paper discusses questions of the use of a color schlieren method for quantitative measurements of two-dimensional vectors of the deflection of light rays by optical inhomogeneities when gas and liquid fluxes are studied. A comparative analysis of bright- and dark-field versions with square and circular shapes of the radiation source and of the Foucault knife is presented. An illustration of a two-coordinate color schlieren pattern obtained on an IAB-451 schlieren device is given. © 2004 Optical Society of America
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