Switching device for the electrical measurement of reactive impedances and a measuring bridge using such a switching device
US4454468A · kind A · utility
1Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 1982 |
| Grant date | Jun 12, 1984 |
| Priority date | — |
| Expiry date | Apr 20, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R27/2605
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A switching device is provided, for measuring capacities, comprising n branches in parallel with n.gtoreq.1, each branch being formed by a capacity to be measured and a switch, the assembly of switches being subjected to a control signal which successively connects each capacity in parallel across the measuring bridge. Each switch may assume two positions, one of the positions connecting electrically the first plate of the capacitor to be measured to one of the ends of the measuring bridge, the other position connecting electrically the first plate to the second one and to the other end of said measuring bridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.