Ammeter with improved current sensing
US8212549B2 · kind B2 · utility
15Cited by
15References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2009 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Apr 5, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/125
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ammeter is provided with a plurality of individual wound coils interconnected in a generally U-shaped array to measure the magnitude of current in a conductor extending through a sensing region inside the U-shape. Additional pairs of position-sensing coils determine the position of the conductor relative to the sensing region and provide outputs to circuitry which permits the magnitude measurement to be displayed only if the conductor extends through the sensing region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.