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13 October 2008 Estimation of uncertainty in CMM cylindricity measurement according to new GPS standard system
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Abstract
New Geometrical Product Specifications (GPS) is the foundation of the technology standards and metrology specifications of mechanical and electric products. GPS estimation of uncertainty in CMM (coordinate measuring machine) measurement can improve the reliability of the verification result. In this paper, a method to estimate the uncertainty in cylindricity CMM measurement is proposed according to the requirements of new GPS standard system. Based on the transparent box model given in ISO/TS 14253-2, the calculation equation of the uncertainty in cylindricity CMM measurement is deduced. And the decision rule based on the compliance uncertainty is adopted to decide whether the cylinder can be accepted or not. The experimental result indicates that the method can not only assure the integrity of the verification result, but also improve the reliability of verification.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ya Zhang, Changtao Ding, Haiqing Du, and Xiaodong Hu "Estimation of uncertainty in CMM cylindricity measurement according to new GPS standard system", Proc. SPIE 7127, Seventh International Symposium on Instrumentation and Control Technology: Sensors and Instruments, Computer Simulation, and Artificial Intelligence, 71270O (13 October 2008); https://doi.org/10.1117/12.806277
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