Method and device for compensating for magnetic noise fields in spatial volumes, and nuclear magnetic resonance imaging apparatus
US6844732B2 · kind B2 · utility
12Cited by
6References
72Claims
0Family size
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Key dates
| Filing date | Apr 9, 2003 |
| Grant date | Jan 18, 2005 |
| Priority date | — |
| Expiry date | Apr 9, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/56563
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for compensating for magnetic noise fields in spatial volumes includes determining the strength of a magnetic field outside said spatial volume; defining the correlation between the noise field outside the spatial volume and the corresponding noise field inside said spatial volume; generating a magnetic compensation field for neutralizing the noise field in said spatial volume. The method further provides separate detection of noise fields with frequencies in the range of at least two different frequency bands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.