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The volume of 28Si 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… Click to show full abstract
The volume of 28Si 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.
Keywords:
effect measurement;
volume;
weight effect;
self weight;
measurement volume
Journal Title: Metrologia
Year Published: 2018
Link to full text (if available)
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Journal Title: Metrologia
Year Published: 2018
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!