| Zugriffsnummer | 21271 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | Electrical metrology |
| Autor(in); Institution |
Bachmair, Hans; 2, Elektrizität, PTB-Braunschweig
|
| Quelle/Jahr | Metrology and fundamental constants : proceedings of the International School of Physics "Enrico Fermi" course CLXVI:(2007), 95 - 133 |
| Herausgeber(in) |
Hänsch, T. W.
|
| ISBN | 978-1-58603-784-0 ; 978-88-7438-037-4 |
| Verlag | Amsterdam [u.a.]: IOS Press |
| Konferenzangaben | International School of Physics "Enrico Fermi" CLXVI Course: Metrology and Fundamental Constants, Varenna, Lake Como, 18-28, July, 2006, Italy |
| Freie Schlagworte | Impedance measurements ; Bridge and ratio techniques ; AC/DC transfer |
| Zusammenfassung | Electrical metrology covers a broad field which describes a wide arc from the realisation of the electrical units to their use in many different fields of application. It is the intent of this paper to provide an overview of the general status and capability of electrical metrology. It also intends to illustrate the scope of electrical subject areas, the complexity of individual activities and the relationships with the rest of metrology. And it outlines the main measurement philosophies and techniques and typical equipment for high accuracy measurements. It will start with the base units of electrodynamics and the relationship between mechanical and electrical units and continue with the definition, realisation, reproduction, maintenance and dissemination of a unit shown by the example of the units of current, voltage and resistance. Impedance measurements, bridge and ratio techniques, AC/DC transfer and power and energy measurements confirm the broad range of application of electrical metrology and at the same time provide the basis for AC measurements of any kind. International comparisons guarantee the consistency of measurements world-wide and are the prerequisite for a mutual recognition of national standards. |
| Rechteinformation | SIF |