Apparatus for generating a magnetic field in a volume having bodies influencing the field pattern
US4740758A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 5, 1986 |
| Grant date | Apr 26, 1988 |
| Priority date | — |
| Expiry date | Feb 5, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H7/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Apparatus for generating a magnetic field having a spatially predetermined field pattern in a useful volume, where bodies of ferro-magnetic material influencing the field pattern are disposed in the useful volume. To assure a spatially predetermined field pattern in the useful volume with only small field errors, outside and on opposite sides of the useful volume at least one thin plate-shaped body of predetermined geometric extent comprising a material having high permeability is provided, of which the surfaces facing the useful volume are shaped and arranged so that the surfaces lie on a magnetic equipotential surface of the magnetic field to be generated in the useful volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.