METHOD OF DETERMINATION OF CIRCUMROTATORY VISCOSITY OF AEOLOTROPIC FLUIDS

摘要

FIELD: physics, measuring.;SUBSTANCE: invention concerns field of a radiospectroscopy and can be used for determination of rheological parameters of mesomorphous bodies, solutions of polymetric compounds and other aeolotropic fluids. The expedient consists that the sample subject to action of a polarising constant magnetic field and rotate with constant velocity round an axis, perpendicular to a magnetic field. Prestressly deuterate the sample, subject to action of radio-frequency impulses, register a nuclear magnetic resonance signal on kerns of deuterium in the form of a doublet of lines with the split caused by quadrupole interactions. Measure quantity of quadrupole split by means of a standard nuclear magnetic resonance-spectrometer depending on velocity of gyration of the sample, spot value of critical velocity of gyration of the sample with which use under the formula spot the relation of circumrotatory viscosity to anisotropy of a diamagnetic susceptibility or, at known anisotropy of a diamagnetic susceptibility, quantity of circumrotatory viscosity.;EFFECT: magnification of sensitivity and a measurement accuracy of circumrotatory viscosity.;4 dwg