|
|
|
| Study on the Influence of Air Buoyancy for the Dissemination Based on Mass Primary Standard |
| HAN Zhi1,WANG Jian2,LUO Zai1 |
1.China Jiliang University, Hangzhou, Zhejiang 310018, China
2.National Institute of Metrology, Beijing 100029, China |
|
|
|
|
Abstract The CIPM-1981 formula, the CIPM-81/91 formula and the CIPM-2007 formula are used to calculate the air buoyancy correction during the dissemination of mass primary standard respectively, there are some differences among these results. In order to analyze the influence of three formulas on the air buoyancy correction, the calculation results of air buoyancy correction is compared under different conditions. The results show that the maximum difference is 42μg under different environmental conditions, when the volumes of national kilogram primary standard No. 60 and national kilogram secondary standard No. 121 have known.
|
|
Received: 27 October 2017
Published: 11 February 2018
|
|
|
|
|
|
［1］王肖磊. 高准确度质量标准测量中空气浮力修正的研究［D］. 北京:中国计量科学研究院, 2011.
［2］Picard A, Fang H. Mass comparisons using air buoyancy artefacts［J］. Metrologia, 2004, 41: 330-332.
［3］杨囡. 微克质量标准中空气浮力修正的研究［D］. 北京:中国计量科学研究院, 2015.
［4］Giacomo P. Equation for the determination of the density of moist air (1981)［J］. Metrologia, 1982, 18: 33-40.
［5］Davis R S. Equation for the determination of the density of moist air (1981/91)［J］. Metrologia, 1992, 29: 67-70.
［6］Picard A, Davis R S, Glser M, et al. Revised formula for the density of moist air (CIPM-2007)［J］. Metrologia, 2008, 45(2):149-155.
［7］Malengo A, Bich W. Erratum: ‘Buoyancy contribution to uncertainty of mass, conventional mass and force’ (2016 Metrologia53 762-9)［J］. Metrologia, 2016, 53(2):762-769.
［8］陈超云, 王金涛, 李之昊, 等. 基于静力称重法的玻璃浮计校准方法研究［J］. 计量学报, 2017, 38(2): 197-199.
［9］王肖磊, 王健, 钟瑞麟, 等. 砝码质量测量中空气密度测量装置的研究［J］. 计量学报, 2011, 32(1): 40-43. |
|
|
|
2018, Vol. 39 
