Precise linear measurements using a calibrated reference workpiece without temperature measurements

Author:

Sumin DmytroORCID,Tutsch Rainer

Abstract

Abstract. We suggest a procedure for the correction of the errors caused by thermal expansion of a workpiece and the scale of a linear measuring instrument (coordinate measuring machines, length measuring machines, etc.) when linear measurements are performed at nonstandard temperature. We use a calibrated reference workpiece but do not require temperature measurements. An estimation of the measurement uncertainty and application examples are given.

Publisher

Copernicus GmbH

Subject

Electrical and Electronic Engineering,Instrumentation

Reference11 articles.

1. Amatuni, A.: Methods and Apparatus for Determining the Coefficients of Linear Thermal Expansion of Materials, Izd. Standartov, 1972 (this translation was provided as the name of the reference source no. 1 in https://doi.org/10.1007/s11018-016-0897-1, in Russian).

2. Baldo, C. R. and Donatelli, G. D.: Experimental analysis of industrial coordinate measuring systems using a calibrated production workpiece. XX IMEKO World Congress Metrology for Green Growth, Busan, Republic of Korea, 2012.

3. Chenyang, Z., Cheng, C., and Hang, Z.: Study on nonlinear thermal error of the measurement machine, ICEMI'2011, 2011.

4. ISO 1:2016-12: Geometrical product specifications (GPS) – Standard reference temperature for the specification of geometrical and dimensional properties, 2016.

5. ISO 15530-3:2011: Geometrical product specifications (GPS) – Coordinate measuring machines (CMM): Technique for determining the uncertainty of measurement – Part 3: Use of calibrated workpieces or measurement standards, 2011.

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1. Achieving precision measurements under non-standard environmental conditions;19th International Congress of Metrology (CIM2019);2019

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