Rotational exchange gradient imager for in situ magnetic resonance analyses in ultracentrifuge sedimentation of biological materials and rheology investigations
US6720769B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2002 |
| Grant date | Apr 13, 2004 |
| Priority date | — |
| Expiry date | Jun 21, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/48
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A detecting method and detector expands the capabilities of Nuclear Magnetic Resonance (NMR) analysis. A Rotational Exchange Gradient Imager (REGI) allows for real-time, in situ investigation of materials subjected to the effects of centrifugal force by NMR analysis. The REGI comprises a cylindrical stator formed of an electrically conductive, non-magnetic material, a rotor contained in the cylindrical stator formed of an electrically non-conductive, non-magnetic material, and a conductor located along a central axis of the cylindrical stator. A sample is contained within the rotor. The stator and central conductor serve to generate the RF magnetic field for NMR analysis. The rotor containing the sample is rotated within a stable air bearing formed between the cylindrical stator and rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.