Shim coils and shimming miniaturized nuclear magnetic resonance magnets
US8729898B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2011 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Dec 10, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/383
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A capillary cartridge assembly for positioning a sample fluid at a geometric center between juxtaposed pole pieces of a NMR magnet assembly for NMR analysis comprises a capillary captured in a channel in a printed circuit board assembly that is sized to fit between the pole pieces. The assembly includes a RF coil surrounding a portion of the capillary. Electric traces shaped to function as shim coils can be included in the printed circuit board. An end of the printed circuit board includes electrically conductive contacts that plug into a receptacle to connect the RF coil and traces to external electrical circuitry when the RF coil is in the geometric center. The capillary can be a continuous flow-through capillary or a closed cartridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.