Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Measurement Uncertainty Analysis of Performance Test for Coordinate Measuring Machine

3차원 좌표 측정기 성능 시험법에 대한 측정 불확도 해석

  • Lee, Seung-Pyo (Department of Mechanical Design and Production Engineering, Hanyang Univ.) ;
  • Kang, Hyung-Joo (International Metrology Systems) ;
  • Ha, Sung-Kyu (Division of Mechanical and Information Management Engineering, Hanyang Univ.)
  • 이승표 (한양대학교 기계설계학과 대학원) ;
  • 강형주 (주식회사 아이엠에스) ;
  • 하성규 (한양대학교 기계정보경영공학부)
  • Published : 2009.04.01
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Abstract

Because of both precise measurement and efficient quality control, coordinate measuring machines(CMMs) have been widely used in the industry. The purpose of this paper is to present a method to estimate the CMM measurement uncertainty using design of experiments. A factorial design is applied to carry out the performance test proposed by ISO 10360 and to investigate CMM measurement errors associated to orientation and length of the length bar. In order to assess the measurement uncertainty for the performance test, an analysis of the uncertainty components that make up the uncertainty budget has been carried out. The procedure for evaluating the uncertainty of it follows GUM ("Guide to the expression of uncertainty in measurement"). The results show that the proposed method is suitable to investigate CMM performance and determine the contribution of machine variables to measurement uncertainty.

Keywords

References

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