Uncertainty Estimation in Straightness Mini-Zone Verification Based on Improved GPS Standard System

Hai Qing Du; Ya Zhang

doi:10.4028/www.scientific.net/AMR.139-141.2063

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 139-141Uncertainty Estimation in Straightness Mini-Zone...

Uncertainty Estimation in Straightness Mini-Zone Verification Based on Improved GPS Standard System

Abstract:

Improved Geometrical Product Specifications (GPS) is an internationally accepted standards system. It is the foundation of the technology standards and metrology specifications. Uncertainty is one of the most important concepts in improved GPS. In the improved GPS standards system, uncertainty is used as an economic tool to enable optimum allocation of resources amongst specification, manufacturing and verification. Estimation of uncertainty in measurement according to improved GPS can improve the reliability of the measurement. A method to estimate the uncertainty in straightness measurement is proposed according to the requirements of improved GPS standard system. Based on the mini-zone method and the transparent box model, the calculation equation of uncertainty in straightness measurement is deduced. The experiment indicates that this method may assure the integrity of the verification result and improve the reliability of measurement.

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Periodical:

Advanced Materials Research (Volumes 139-141)

Pages:

2063-2066

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.139-141.2063

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Online since:

October 2010

Authors:

Hai Qing Du, Ya Zhang

Keywords:

Geometrical Product Specification (GPS), Straightness, Uncertainty

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References

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