Experimental research on mass determination of non-metal weights

Authors

  • M. Hu National Institute of Metrology Beijing
  • J. Wang National Institute of Metrology Beijing
  • C. Cai National Institute of Metrology Beijing
  • R. Zhong National Institute of Metrology Beijing
  • K. Jiao National Institute of Metrology Beijing
  • D. Wu National Institute of Metrology Beijing
  • P. Cheng National Institute of Metrology Beijing

DOI:

https://doi.org/10.21014/acta_imeko.v9i5.932

Abstract

With the revision of the definition of the kilogram, more and more weights made of non-metal material, such as silicon spheres and PM 2.5 film, need to be determined with high accuracy. As conventional mass is commonly used in mass metrology, this paper discusses the mass-measuring process for silicon and PM 2.5 film. Electrostatic eliminators are used to eliminate the electrostatic effects of non-metal material to improve the stability of mass measurement. Due to the big difference of weights’ densities, the air buoyancy correction and its uncertainty evaluation are also conducted.

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Published

2020-12-31

Issue

Vol. 9 No. 5 (2020): Special issue for TC3, TC5, TC16 and TC22

Section

Conference Submissions

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