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Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK
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PublicationInterferometric measurement of fine-machined surfaces( 1992)
;Spur, G. ;Nyarsik, L. ;Körner, K.Krahn, A.A possibility for measuring the form, waviness and roughness of fine-machined surfaces by interferometric means is discussed. A variety of fine-machined surfaces shows parameters of hight in the range of microns. So it is necessary to increase the interfermometric increment in a two-beam-interferometer with visible light by grazing incidence illumination. This principle was investigated in a new prism interferometer. A test method for the interferometer is proposed and measurements are represented.