Abstract In order to correct the buoyancy of air, the volume of the weight must be determined, which is a key capability required by the current metrology society. The Austrian Federal Ministry of Metrology and Measurement (BEV) and the Technical University of Vienna, at the request of and cooperation with Sartorius Göttingen, have developed a fully automatic weight loading system that weighs under a mass comparator and is used for 1 kg Determination of E1 weight and vertical volume in the mass comparator. In this way, by direct comparison with a volume reference (for example, a silicon ball), the hydrostatic weighing principle can be used for continuous volumes from 1 gram to 1 kilogram. This work is carried out by a newly developed fully-automatic putting-in mechanism, which can be used not only for fully immersed weights but also for replacing weights. This system is used by the Federal Department of Metrology and Measurement to perform volumetric measurements related to quality determination, as well as in other metrology institutes and quality-calibrated calibration laboratories.
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