Equipment for the calibration of squareness standards

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Abstract

In dimensional metrology, the measurement of squareness is a basic task for many purposes. At the Centre for Metrology and Accreditation (MIKES), a squareness measuring machine for traceable calibration of squares has been developed. The machine is able to measure a squareness standard of 1000 mm × 1000 mm maximum size. The system consists of a rotary table and a tactile displacement transducer with horizontal and vertical linear guides. The error sources of the developed equipment are presented together with a brief description of the calibration procedure. Implemented error compensation of the rotary table and one linear guide is described. The uncertainty estimate is presented for squareness angle measurement. The standard measurement uncertainty for steel or granite squares is 0.2''. We also present the results of an internal comparison of squareness measurements made with the developed machine and a high accuracy coordinate measuring machine. The results show good agreement.
Original languageEnglish
Article number094009
Number of pages5
JournalMeasurement Science and Technology
Volume23
Issue number9
DOIs
Publication statusPublished - 2012
MoE publication typeA1 Journal article-refereed

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Calibration
Metrology
Table
Coordinate Measuring Machine
Error Compensation
Measurement Uncertainty
Transducer
metrology
Steel
High Accuracy
Horizontal
Vertical
Error compensation
Coordinate measuring machines
Accreditation
Granite
Internal
Uncertainty
Angle
Angle measurement

Keywords

  • standards
  • calibration
  • squares

Cite this

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title = "Equipment for the calibration of squareness standards",
abstract = "In dimensional metrology, the measurement of squareness is a basic task for many purposes. At the Centre for Metrology and Accreditation (MIKES), a squareness measuring machine for traceable calibration of squares has been developed. The machine is able to measure a squareness standard of 1000 mm × 1000 mm maximum size. The system consists of a rotary table and a tactile displacement transducer with horizontal and vertical linear guides. The error sources of the developed equipment are presented together with a brief description of the calibration procedure. Implemented error compensation of the rotary table and one linear guide is described. The uncertainty estimate is presented for squareness angle measurement. The standard measurement uncertainty for steel or granite squares is 0.2''. We also present the results of an internal comparison of squareness measurements made with the developed machine and a high accuracy coordinate measuring machine. The results show good agreement.",
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author = "Bj{\"o}rn Hemming and Antti Korhonen and Ilkka Palosuo and Antti Lassila",
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Equipment for the calibration of squareness standards. / Hemming, Björn; Korhonen, Antti; Palosuo, Ilkka; Lassila, Antti.

In: Measurement Science and Technology, Vol. 23, No. 9, 094009, 2012.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Equipment for the calibration of squareness standards

AU - Hemming, Björn

AU - Korhonen, Antti

AU - Palosuo, Ilkka

AU - Lassila, Antti

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N2 - In dimensional metrology, the measurement of squareness is a basic task for many purposes. At the Centre for Metrology and Accreditation (MIKES), a squareness measuring machine for traceable calibration of squares has been developed. The machine is able to measure a squareness standard of 1000 mm × 1000 mm maximum size. The system consists of a rotary table and a tactile displacement transducer with horizontal and vertical linear guides. The error sources of the developed equipment are presented together with a brief description of the calibration procedure. Implemented error compensation of the rotary table and one linear guide is described. The uncertainty estimate is presented for squareness angle measurement. The standard measurement uncertainty for steel or granite squares is 0.2''. We also present the results of an internal comparison of squareness measurements made with the developed machine and a high accuracy coordinate measuring machine. The results show good agreement.

AB - In dimensional metrology, the measurement of squareness is a basic task for many purposes. At the Centre for Metrology and Accreditation (MIKES), a squareness measuring machine for traceable calibration of squares has been developed. The machine is able to measure a squareness standard of 1000 mm × 1000 mm maximum size. The system consists of a rotary table and a tactile displacement transducer with horizontal and vertical linear guides. The error sources of the developed equipment are presented together with a brief description of the calibration procedure. Implemented error compensation of the rotary table and one linear guide is described. The uncertainty estimate is presented for squareness angle measurement. The standard measurement uncertainty for steel or granite squares is 0.2''. We also present the results of an internal comparison of squareness measurements made with the developed machine and a high accuracy coordinate measuring machine. The results show good agreement.

KW - standards

KW - calibration

KW - squares

U2 - 10.1088/0957-0233/23/9/094009

DO - 10.1088/0957-0233/23/9/094009

M3 - Article

VL - 23

JO - Measurement Science and Technology

JF - Measurement Science and Technology

SN - 0957-0233

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