NMR apparatus with permanent magnets, magnetic field sensors, and magnetic coils
US10782371B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2018 |
| Grant date | Sep 22, 2020 |
| Priority date | — |
| Expiry date | Aug 31, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/4814
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A nuclear magnetic resonance (NMR) apparatus includes a pair of permanent magnets spaced apart from each other and defining a sample space, the permanent magnets providing a magnetic field in the sample space, an array of magnetic field sensors arranged relative to the sample space to provide, during operation, information about a homogeneity of the magnetic field, an array of magnetic coils arranged relative to the sample space so that each magnetic coil, during operation, generates a magnetic field that changes the magnetic field in the sample space, and an electronic controller programmed to receive information about the magnetic field from the array of magnetic field sensors and to variably energize the magnetic coils in the array of magnetic coils so that the magnetic fields generated by the array of magnetic coils reduces inhomogeneities of the magnetic field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.