Research on the Pressure-Measuring Uncertainty of Standard Copper-Cylinder

Abstract:

This article introduces the method of selection and related criterion of standard copper-cylinder, and systematically analyzes five factors that affect the measuring uncertainty of standard copper-cylinder: primary pressure standard, height measuring of copper-cylinder, and inconsistent individual deformation of standard copper-cylinder, inconsistent pressure sensitivity and the influence of temperature. According to usage characteristics and selection methods of the standard copper-cylinder, discusses computing method of components of the measurement uncertainty and models measuring uncertainty of standard copper-cylinder. The model can quantitatively calculate through experimental data of selection, which lay a theoretical foundation for the control of the pressure measuring uncertainty of standard copper-cylinder.

• Periodical: Applied Mechanics and Materials (Volumes 249-250)
• Pages: 972-977
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.249-250.972
• Online since: December 2012
• Authors: Li Ping Li, De Ren Kong, Fang Wang, Li Xia Yang, Chuan Rong Zhao
• Keywords: Distribution, Pressure-Measuring, Standard Copper-Cylinders, Uncertainty

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