| Zugriffsnummer | 44728 |
| Dokumenttyp | Konferenzartikel in Zeitschrift |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Synthetic inductance standards made up of capacitances and gyrators |
| Autor(in); Institution |
Funck, Torsten; 2.1, Gleichstrom und Niederfrequenz, PTB-Braunschweig
Müller, Andé; 2.1, Gleichstrom und Niederfrequenz, PTB-Braunschweig
Bothe, Harald; 2.1, Gleichstrom und Niederfrequenz, PTB-Braunschweig
|
| Quelle/Jahr | IEEE Transactions on Instrumentation and Measurement: 70 (2020) |
| ISSN | 0018-9456 (PRINT) ; 1557-9662 (ONLINE) |
| DOI | |
| Verlag | New York, NY: IEEE |
| Konferenzangaben | Conference on Precision Electromagnetic Measurements (CPEM), Virtual Conference, 24-28, August, 2020, USA |
| Freie Schlagworte | Active circuits ; active inductors ; capacitors ; gyrators ; impedance measurement |
| Zusammenfassung | Inductance standards currently available are made up of toroidal inductors, i.e. coils of wire wound around a toroidal non-magnetic core. The maximum inductance achievable is 10 H, while modern LCR meters offer measurement ranges up to more than 10 kH. Due to their winding capacitance and wire resistance, toroidal inductors exhibit quite large parasitic elements that restrict the operating frequency due to resonances. Using a gyrator in conjunction with a capacitance standard creates a synthesized inductance which can exhibit values up to hundreds of kilohenry. Optimizing the gyrator’s parameters leads to much lower parasitics and thus an extended usable frequency range even for inductances available as toroidal inductors. Furthermore, the physical size of a gyrator circuit is much smaller than that of a toroid, which simplifies thermoregulation and transportation. |
| Themenbereich der Metrologie | Elektrizität und Magnetismus |