Title :
Uncertainty analysis in least-square fitting according to next generation of GPS standard system
Author :
Liang-Rong, Zhu ; Ya, Zhang
Author_Institution :
Zhejiang Ind. Polytech. Coll., Shao Xing, China
Abstract :
Next generation of Geometrical Product Specifications (GPS) is the foundation of the technology standards and metrology specifications of mechanical and electric products. Uncertainty estimation of measurement according to next generation of GPS can improve the reliability of the verification result. A method to estimate the uncertainty in the process of least-square fitting is proposed according to the requirements of next generation of GPS standard system. Based on the transparent box model given in ISO/TS 14253-2, the calculation equation of the uncertainty in the process of least-square fitting is deduced. The experimental result indicates that the method can not only assure the integrity of the verification result, but also improve the reliability of verification.
Keywords :
ISO standards; electrical products; least squares approximations; measurement standards; measurement uncertainty; mechanical products; reliability; uncertain systems; GPS standard system; ISO/TS 14253-2; electric products; geometrical product specifications; least-square fitting process; measurement standard uncertainty; mechanical products; transparent box model; uncertainty analysis; verification reliability; Calibration; Educational institutions; Equations; Fitting; Global Positioning System; ISO standards; Industrial relations; Measurement uncertainty; Metrology; Standards development; Geometrical Product Specification; least-square; uncertainty;
Conference_Titel :
Information Management and Engineering (ICIME), 2010 The 2nd IEEE International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-5263-7
Electronic_ISBN :
978-1-4244-5265-1
DOI :
10.1109/ICIME.2010.5478212
