Oscillating magnetic field generating assembly
US5680044A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1995 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | Jun 30, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/34061
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A nuclear magnetic resonance apparatus having a magnetic assembly which generates a main static field in a working region which is external of the magnetic assembly. The main static magnetic field has a uniformity suitable for performing NMR experiments. An oscillating magnetic field generating assembly is provided with a set of axially aligned electrical coils connected to an oscillating electrical source. The axially aligned electrical coils generate an rf magnetic filed within the working region of the magnet assembly. Adjacent coils of the axially aligned electrical coils are wound in opposite senses and connected in series so as to generate opposing magnetic fields which superimpose to produce an oscillating magnetic field external of the magnet assembly. The oscillating magnetic field is sufficiently uniform within the working region to perform NMR experiments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.