Surface current probe
US9329207B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2012 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Oct 2, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/185
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A surface current probe includes two current detection coils disposed so as to detect a magnetic field in a direction vertical to an current detection target plane; two disturbance-control coils, each thereof being disposed at a position farther away from each of the two current detection coils, against the current detection target plane, so as to be disposed for detection of a magnetic field in a direction parallel to the current detection target plane; and a terminal resistor coupled to each of the two disturbance-control coils. The two disturbance-control coils are disposed such that induced voltages generated against the current detection target plane at the time of detection of a magnetic field on the outer side of the two current detection coils are opposed in polarity to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.