Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Measurement Uncertainty Analysis of the Stitching Linear-Scan Method for the Measurable Dimension of Small Cylinders

Version 1 : Received: 10 July 2023 / Approved: 12 July 2023 / Online: 12 July 2023 (08:48:25 CEST)

A peer-reviewed article of this Preprint also exists.

Zhao, J.; Zhang, L.; Wu, D.; Shen, B.; Li, Q. Measurement Uncertainty Analysis of the Stitching Linear-Scan Method for the Measurable Dimension of Small Cylinders. Appl. Sci. 2023, 13, 9091. Zhao, J.; Zhang, L.; Wu, D.; Shen, B.; Li, Q. Measurement Uncertainty Analysis of the Stitching Linear-Scan Method for the Measurable Dimension of Small Cylinders. Appl. Sci. 2023, 13, 9091.

Abstract

To verify the reliability of the proposed stitching linear scan method for roundness measurement of small cylindrical workpieces, measurement uncertainties of the workpieces with various dimension are conducted. The cross-sectional circle of a cylindrical workpiece is divided into several equal arcs to be measured. Thus, the arc profile can be characterized according to the measured arcs. The roundness profile of the cylindrical part can be obtained by stitching these arc profiles together. Firstly, the measurement uncertainty of the workpiece with a diameter 1.5 mm and length 5.8 mm is evaluated to be 0.095 μm which can meet the uncertainty target of 0.1 μm. Considering the uncertainty of θx and θz which are the alignment around X-axis and Z-axis respectively changing with workpiece dimension changing, relevant uncertainties are carried out. As a result, there is no limitation with respect to workpiece diameter theoretically If the alignment can reach θz = θx = ±0.1° without considering the measurable range of the machine.

Keywords

Small cylinder; Roundness; Measurement uncertainty; Linear-scan

Subject

Engineering, Industrial and Manufacturing Engineering

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