IMPROVEMENT OF NMR TECHNIQUES TO INCREASE ACCURACY OF THE MEASUREMENTS OF SELF-DIFFUSION AND FLUID MOTION

A method is described for reducing the effect of non-identical gradient pulses on the accuracy of NMR measuring the diffusion parameters of a sample and fluid flow rate using a series of several gradient pulses before the first radio frequency pulse, due to which a dynamic equilibrium is established in the measuring system, as a result of which the impact of gradient impulses levels out. This leads to increased accuracy and extended measurement range.