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Fluid flow analysis by a modified, white light, Lau interferometer

Stickland, M.T. and Waddell, Peter and Mason, S. and McKay, S. and Mair, L. (2002) Fluid flow analysis by a modified, white light, Lau interferometer. Experiments in Fluids. ISSN 0723-4864

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Abstract

This paper presents a sharp focussing schlieren system based upon a modified Lau interferometer. A method of reducing the depth of focus of the system is demonstrated and the development of the system to study large fields of view by the incorporation of flexible membrane mirrors is discussed.