Measurement of Noncircularity of Cylinders Freely Rolling on Directing Supports or a Smooth Surface
P. P. Belousov, P. Y. Belousov, O. P. Belousova
Keywords: laser Doppler anemometry, velocity measurement, noncircularity measurement, measurement of geometric parameters of circular bodies
Pages: 113-123
Abstract
A new optical method of measuring noncircularity of cylinders is experimentally justified. The method is based on measuring the horizontal projection of velocity of a rolling circular body and calculating the maximum deviation of the local radius periodically repeated in the course of motion. Results measured by the proposed method are compared with direct measurements by a micrometer. The new method allows estimating tolerances of noncircularity in the case of defects of cylinder generatrices and the maximum variations of the radius in the case of guideline noncircularity. The noncircularity measurement error (~1 µm) is experimentally verified.
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