Four terminal pair digital sampling impedance bridge
| Autor: | Jiri Streit, Stanislav Maslan, Martin Šíra, Vera Novakova Zachovalova |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
business.industry Acoustics 020208 electrical & electronic engineering Electrical engineering Impedance matching Impedance bridging Quarter-wave impedance transformer 02 engineering and technology Characteristic impedance Image impedance High impedance 0202 electrical engineering electronic engineering information engineering Damping factor Output impedance business |
| Zdroj: | 2016 Conference on Precision Electromagnetic Measurements (CPEM 2016). |
| Popis: | This paper describes digital sampling bridge for impedance measurement up to few tens of kHz in four terminal pair definition. It is primarily dedicated for low impedance measurements with comparison currents over 10 A however it can be used at least up to few tens of kΩ as well. Achieved uncertainty for near unity impedance ratio is few μΩ/Ω and the phase angle uncertainty at 1 kHz is few μrad (coverage factor k = 2). Due to the used signal processing method the bridge can be used even for sub-10mV voltage drops on the standards. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|