Determination of flatness from straightness measurements and characterization of the surface by four parameters

J. Meijer, W. de Bruin

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Abstract

Since for medium and larger objects there is no usable flatness reference in the sub-micron range, flatness deviations must be found from straightness measurements. The extensive task of coupling the straight reference lines into a reference flat is done using a computer. This simplifies the measuring procedure and offers much statistical information. The method described can be seen as a generalization of the classical ‘Union Jack’ method. After evaluation, the measured surfaces are described by four independent characteristic parameters having an important practical meaning
Original languageUndefined
Pages (from-to)17-22
JournalPrecision engineering
Volume3
Issue number1
DOIs
Publication statusPublished - 1981

Keywords

  • IR-68714

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