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Prof. Dr.-Ing. Steffen Strehle
Head of Group
Microsystems Technology Group
Am Helmholtzring 12 (Werner-Bischoff-Bau room 3110)
98693 Ilmenau
Phone: +49 3677 69-2485
Fax: +49 3677 69-1801
31.08.2023 GRK-NanoFab-Kolloquium: Dr. Yang Bai from the National Institute of Metrology, China
Kilogram Realization in NIM
As from May 20 2019, the kilogram was redefined based on the Planck Constant. The National Institute of Metrology (NIM), China has built up the Joule Balance to realize the kilogram from the Planck Constant. This presentation will introduce the basic theory, essential technical details of Joule Balance and show its performance in two CCM key comparisons of kilogram realizations (CCM.M-K8). In addition, this presentation will talk about two generations of heterodyne laser interferometer in the Joule Balance in detail.