| Autor: |
Wan-Seop Kim, Dan Bee Kim |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
2020 Conference on Precision Electromagnetic Measurements (CPEM). |
| DOI: |
10.1109/cpem49742.2020.9191923 |
| Popis: |
A digitally assisted coaxial bridge—mainly consisted of a ratio transformer and digital voltage sources—was set up in a 4-terminal-pair (4-TP) configuration for the precision capacitance measurements. The 10: 1 capacitance ratio was measured in the range of 1 pF $\sim 1\ \mu\mathrm{F}$ mainly at 1 kHz using the 4-TP bridge. The measurement results show a degree of equivalence from a few parts in 108 to 105 when compared with those obtained using 2-terminal-pair/3-terminal bridges. Moreover, the measurement frequency of the 4-TP bridge was varied from 50 Hz to 20 kHz. The Allan deviation measurements imply that the statistical uncertainty could be achieved a level of 10−9 at 1 kHz. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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