Abstract
It is shown that in assessment of small holes roundness by measurement of radial variation not only eccentricity of the examined profile in relation to the axis of rotation has apparent influence on profile distortions; the offset. of the straight linc, along which the midpoint of the sensor tip is moving, from the axis of rotation also causes significant measurement errors. A way to identify that source of errors is described. The presented algorithms used in general-purpose instruments equipped with a computer ensure correct results with reference to LSC (least squares centre) regardless of positioning imperfection. Effectiveness of errors compensation has been evaluated on the base of the harmonic analysis of the signal appearing while measuring truly round profiles. Application of the procedures given in the paper enables significant improvement of accuracy in measurements of roundness, eccentricity and differences of diameters of small precise holes without their perfect positioning.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
