Research direction on surface status prediction of weights and surface mass absorption correction

Journal of Hebei University of Science and Technology

Xiaoping REN¹  Guodong HAO²  Lei DONG³ 

[1] Division of Mechanics and Acoustics, National Institute of Metrology, Beijing 100029, China;School of Information Science & Engineering, Central South University, Changsha, Hunan 410083, China;Weighing Center, Shaanxi Institute of Metrology Science, Xi'an, Shaanxi 710065, China;

关键词: metrology;    binding energy status prediction model;    surface adsorption;    measurement uncertainty;    mass correction method;    volume measurement;   

DOI  :  10.7535/hbkd.2015yx03004

来源: DOAJ

【 摘 要 】

The mass benchmark is the only real benchmark among all fundamental physical SI units, and the drawback is that it's easy to be affected by the environment, resulting in the change of the mass value. In this paper, recent research progresses at home and abroad on the surface status predication are summarized and the prediction research method on the surface status prediction of weights in institutes home and abroad is presented, including the influence analysis on the mass standards during transferring from vacuum to air and establishment the mass observation model and absorption correction model,etc. Through the research on the surface status of weights and absorption correction technology, the mass measurement accuracy can be ultimately enhanced, which lays a technical foundation for the upcoming redefinition of mass units' research.

【 授权许可】

Unknown