METHOD OF MEASURING DIMENSIONS OF MICROCRYSTALS Russian patent published in 2015 - IPC G01N24/08 

FIELD: physics.

SUBSTANCE: method includes detecting quadrupole spin echo signals, determining relaxation time $$T_2^{*}$$ through Laplace transform inversion, calculating the equivalent radius of granules using the obtained formula and pre-measured constants which are characteristic for the given substance. Measurements are made using nuclear quadrupole resonance relaxometry, and the detected parameter used is relaxation time $$T_2^{*}$$ .

EFFECT: nondestructive method of measuring dimensions of microgranules in powders, in microporous and microcomposite materials, which uniquely identifies the material of the measured microgranules and which does not require use of a strong polarising magnetic field.

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