Synthetic inductance standards made up of capacitances and gyrators
| Autor: | Harald Bothe, A. Müller, Torsten Funck |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
Toroid business.industry 020208 electrical & electronic engineering Electrical engineering 02 engineering and technology Inductor USable Capacitance Inductance Gyrator 0202 electrical engineering electronic engineering information engineering Parasitic extraction Electrical and Electronic Engineering business Instrumentation Electrical impedance |
| Zdroj: | 2020 Conference on Precision Electromagnetic Measurements (CPEM). |
| Popis: | Inductance standards currently available are made up of toroidal inductors, i.e., coils of wire wound around a toroidal nonmagnetic 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 kilohenries. 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|