Correction of signal distortion in an NMR apparatus
US5289127A · kind A · utility
27Cited by
2References
9Claims
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Key dates
| Filing date | Oct 19, 1992 |
| Grant date | Feb 22, 1994 |
| Priority date | — |
| Expiry date | Oct 19, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/56518
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Temporal B.sub.o shifts in NMR spectroscopy and/or imaging systems arising from pulsed field gradient induced eddy currents result in the distortion of free induction decay signals. A method of compensation of this distortion through modulation of the sender and/or receiver signal in opposite concert with the induced B.sub.o shifts is introduced. The method has the advantage of having a fast response and of not altering the magnetic gradient field. (FIG. 4)
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