FIELD: NMR spectroscopy method.
SUBSTANCE: method can be used for measuring NMR in wells. First permanent magnetic field is applied to polarizing sample and radio-frequency pulse is irradiated onto sample. The second magnetic field is applied in such a way that when combining it with the first one the third permanent magnetic field is formed. When applying second permanent magnetic field or after it is removed, NMR signal that is irradiated by sample is measured.
EFFECT: improved precision of measurement.
26 cl, 9 dwg
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