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Abstract and Manuscript Management System - Abstract Detail |
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| Speaker: | Benno Gatzemeier |
| Title: | A new Method for highly accurate Density Determination of weights |
| Topic Group: | Mass Metrology |
| E-mail: | Benno.Gatzemeier@Sartorius.com |
| Co-Authors: | Co. Author Christian Buchner, BEV- Bundesamt für Eich- und Vermessungswesen / Federal Office of Metrology and Surveying, Austria |
| Abstract: |
Sartorius has developed a new method for the highly accurate density determination of weights. In cooperation with the Austrian Federal Office of Metrology and Surveying (BEV) and the Institute for Manufacturing Technology (IFT) of the Technical University of Vienna, Sartorius has developed an innovative, fully automatic volume comparator. This system, designated VD1005, is suitable for the highly accurate determination of the volume and density of solid bodies and, in particular, E1 weights from 1 g to 1 kg. The system is based on the hydrostatic comparison of a volume reference with a test object in liquid in accordance with the A2 test method of OIML R111. For the fully automatic determination of density, the VD1005 volume comparator has a PC-controlled weight exchanger mechanism, so called load alternator, with magazine spaces in liquid for test weights and reference weights and a load alternator with magazine spaces in air for substitution weights. The second load alternator in air moves synchronously with the load alternator in liquid. The fact that, by using a variety of substitution weights, the density of weights in the range from 1 g to 1 kg can be directly deduced from only a single primary density reference, such as a silicon sphere, makes the system unique. |
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