Calibrated decoupling of tightly coupled concentric surface coils
US4812764A · kind A · utility
22Cited by
7References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 31, 1988 |
| Grant date | Mar 14, 1989 |
| Priority date | — |
| Expiry date | Mar 31, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3664
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pair of coupled surface coils are arranged to provide active detuning whereby the shape of the RF field due to the RF current in one coil is modified in a calibrated fashion by the RF current in the second coil whereby a selected fraction of the RF field of one coil may be selectively added or substracted from the RF field of the one other coil thereby shaping the RF field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.