| Zugriffsnummer | 44308 |
| Dokumenttyp | Konferenzartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Innovative mass standards for the worldwide transfer of the redefined unit kilogram |
| Autor(in); Institution |
Lehrmann, Katharina; 1.1, Masse, PTB-Braunschweig
Knopf, Dorothea; 1.1, Masse, PTB-Braunschweig
Härtig, Frank; Präsidium, VP, PTB-Braunschweig
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| Quelle/Jahr | Proceedings of euspen's 20th International Conference & Exhibition:(2020), 1 - 2 |
| ISBN | 978-0-9957751-7-6 |
| URL | |
| Verlag | Bedford: European Society for Precision Engineering |
| Konferenzangaben | euspen's 20th International Conference & Exhibition, Virtual International Conference, 08-12, June, 2020 |
| Freie Schlagworte | Kilogram ; mass standard ; dissemination |
| Zusammenfassung | Manufacturing processes and handling procedures for new stable silicon mass standards with unprecedented accuracy have been developed and transferred to industry. The patented manufacturing process and the high precision calibration procedures were developed by Physikalisch-Technische Bundesanstalt (PTB). Both the manufacturing process for the spheres and the handling of the spheres were extended to two small and medium-sized enterprises (SME). The transfer was part of the three-year transfer project "Si-kg" for industrial requirements and placed on the market with great success. Depending on the custom requirements, two different qualities are offered within a newly established sales infrastructure. One potentially primary quality derived from volume and density and another high quality which serves as high precision mass standard. This coincides completely with the revision of the International System of Units in 2019 and the resulting new possibilities to disseminate the unit Kilogram for a practice oriented and stable traceability chain. As a result of the project, several silicon spheres were sold before the end of the project. Further inquiries reflect the increasing market for high precision mass standards. |
| Themenbereich der Metrologie | Masse und abgeleitete Größen |
| Förderinformationen (1) |
Förderername: Bundesministerium für Wirtschaft und Energie (BMWi)
Förderer ID: 0000 0001 1092 3392 Förderer ID Typ: ISNI Förderprogramm: TransMeT Si-kg |