Process and apparatus using magnetic field measurements for measuring an electric field in a conductive medium
US5440226A · kind A · utility
4Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1993 |
| Grant date | Aug 8, 1995 |
| Priority date | — |
| Expiry date | Oct 12, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R29/0878
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The apparatus includes a pair of electrodes which makes it possible to channel a current density creating the current which induces a magnetic field in one or more induction coils. This magnetic field is measured with the aid of one or more magnetometric transducers. The electric/magnetic transfer rate of the coils and the conductivity of the conductive medium are known, so that the value of the electric field is deduced on the basis of Ohm's law. The local magnetic field is previously measured so as to take account thereof when measuring the induced magnetic field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.