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Metrological properties of Moire topography

Topography is a method giving a contour map as result of measurement describing three-dimensional shape of measured objects. The paper is focused to projection moire topography. The measurement model is compiled at first of all. The parameters of topography (accuracy, sensitivity, resolution, range) are introduced by virtue of this model. They are the great tool for description of measurement from the point of view of its quality. Some examples of topography of object are introduced to illustrate the theoretical principles at the end.