The problems of the condition control of flowing liquid during its use in different industries, energy and agriculture are reviewed. The devices of the flowing liquid condition control whose operating principle is based on the phenomenon of nuclear magnetic resonance are presented. This devices do not have the disadvantages and limitations of use inherent in optical analyzers and flowing refractometers. At using controls based on the phenomenon of nuclear magnetic resonance the controlled parameters are the relaxation times of the flowing fluid, in particular, the greatest difficulties arise when measuring the longitudinal relaxation time. The method for control of longitudinal relaxation time T1 of flowing liquid in the entire range of measuring its expenditure is proposed. To implement a new method the design of nuclear magnetic flowmeter-relaxometer is developed. The obtained data are compared with the measurement results of values T1 for liquid media being in a stationary state are recived on industrial nuclear magnetic relaxometer and is determined them coincidence within the measurement error.
Four-angle method for practical ultra-high-resolution magnetic resonance mapping of brain longitudinal relaxation time and apparent proton density
