Capacitance measuring method and apparatus
US4825147A · kind A · utility
59Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1988 |
| Grant date | Apr 25, 1989 |
| Priority date | — |
| Expiry date | Sep 14, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R27/2605
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A train of constant current pulses is applied to a capacitor to raise the voltage across the capacitor from a first predetermined level to a second predetermined level. The voltage across the capacitor is measured only during the intervals between the current pulses, and the number of applied pulses is counted and used to calculate the capacitance of the capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.