Self-weight effect in the measurement of the volume of silicon spheres
Self-weight effect in the measurement of the volume of silicon spheres
复制标题
硅球体积测量中的自重效应
DOI：
10.1088/1681-7575/aaaed5
复制
发表时间：
2018
期刊：
影响因子：
2.4
通讯作者：
N Kuramoto and G Mana
中科院分区：
文献类型：
--
作者：
D Mari;E Massa;N Kuramoto and G Mana
直径约94 mm的28个Si球的体积是用于确定阿伏伽德罗常数的输入数据。我们报告的体积测定通过光学干涉测量的球体直径的自重效果的有限元分析。赤道直径的自重膨胀或收缩，范围从− 31 pm到+ 180 pm，取决于支撑物的南纬度。
The volume of 28 Si spheres about 94 mm in diameter is an input datum for the determination of the Avogadro constant. We report a finite element analysis of the self-weight effect on the volume determination via optical interferometric measurements of the sphere diameters. The self-weight expansion or shrinkage of the equatorial diameters, which ranges from− 31 pm to+ 180 pm, depends on the southern latitude of the supports.