Interferometric step gauge for CMM verification

B. Hemming, V. P. Esala, P. Laukkanen, A. Rantanen, R. Viitala, T. Widmaier, P. Kuosmanen, A. Lassila

Research output: Contribution to journalArticleScientificpeer-review

Abstract

The verification of the measurement capability of coordinate measuring machines (CMM) is usually performed using gauge blocks or step gauges as reference standards. Gauge blocks and step gauges are robust and easy to use, but have some limitations such as finite lengths and uncertainty of thermal expansion. This paper describes the development, testing and uncertainty evaluation of an interferometric step gauge (ISG) for CMM verification. The idea of the ISG is to move a carriage bearing a gauge block along a rail and to measure the position with an interferometer. For a displacement of 1 m the standard uncertainty of the position of the gauge block is 0.2 μm. A short range periodic error of CMM can also be detected.

Original languageEnglish
Article number074012
JournalMeasurement Science and Technology
Volume29
Issue number7
DOIs
Publication statusPublished - 7 Jun 2018
MoE publication typeA1 Journal article-refereed

Fingerprint

Gage blocks
Coordinate Measuring Machine
Coordinate measuring machines
Gages
Gauge
Bearings (structural)
Uncertainty
Interferometers
Thermal expansion
Rails
carriages
Thermal Expansion
rails
Testing
Interferometer
thermal expansion
interferometers

Keywords

  • CMM
  • metrology
  • verification

Cite this

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Interferometric step gauge for CMM verification. / Hemming, B.; Esala, V. P.; Laukkanen, P.; Rantanen, A.; Viitala, R.; Widmaier, T.; Kuosmanen, P.; Lassila, A.

In: Measurement Science and Technology, Vol. 29, No. 7, 074012, 07.06.2018.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Hemming, B.

AU - Esala, V. P.

AU - Laukkanen, P.

AU - Rantanen, A.

AU - Viitala, R.

AU - Widmaier, T.

AU - Kuosmanen, P.

AU - Lassila, A.

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