Calculating associated cylinder axis for elements measured by the “Bird-Cage” strategy

Dariusz Janecki, Stanislaw Adamczak, Krzysztof Stepien

Abstract

Cylindrical surfaces are common in industrial machining so accurate evaluation of cylindricity is a very important application in geometrical quantities metrology. New GPS standards describe four measuring strategies: a cross-section method, a generatrix method, a point method and so-called “bird-cage” method. The first three methods are relatively well developed. The last one, however, the most accurate method has not been well described mathematically. The paper presents the mathematical model of calculating the cylinder axis orientation with the “bird-cage” strategy.

Keywords

associated cylinder; axis orientation; “bird-cage” strategy

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IMEKO-TC14-2007-28.pdf

DOI

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IMEKO TC

TC14 - Measurement of Geometrical Quantities

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