7) A Field Cycling Magnetic Resonance based apparatus to measure and analyze flow properties in flowing multiphasic complex fluids, comprising:
- a first magnet module, wherein the magnet module having an upstream end and a downstream end, the first module comprising a first magnet, wherein the first magnet creates a first magnetic field region with a constant magnetic field intensity, wherein the multiphasic complex fluid flows through the first magnetic field region, and wherein in the first magnetic field region a plurality of NMR active spins of the multiphasic complex fluid are polarized;
- a second magnet module having an upstream end and a downstream end, the second module comprising a second magnet, wherein the upstream end of the second segment is adjacently connected to the downstream end of the first module so the multiphasic complex fluid flows to the second magnet module, wherein the second magnet creates a second magnetic field region, wherein the second magnetic field region is variable in magnetic field intensity and time, and wherein the fluid passes through the variable magnetic field region, and wherein in the variable magnetic field region a plurality of spins of the multiphasic complex fluid relax;
- an third module, having an upstream end and a downstream end, the third module comprising a third magnet, a plurality of radio-frequency antennas and a plurality of magnetic field gradient coils, wherein the upstream end of the third segment is adjacently connected to the downstream end of the second segment;
- wherein the third magnet creates a third magnetic field region with a constant magnetic field intensity, wherein the fluid passes through the third magnetic field region, wherein the radio-frequency antennas create an electromagnetic excitation field applying a plurality of radio frequency pulses, wherein the fluid passes through the electromagnetic excitation field, and wherein the radio-frequency antenna receives a magnetic resonance signal response originated in the multiphasic complex fluid;
- wherein the magnetic field gradient coils create a plurality of variable local magnetic fields, wherein the fluid passes through the plurality of variable local magnetic fields, wherein the plurality of spins of the multiphasic complex fluid are spatially encoded;
- a fourth module, the fourth module comprising a computing digital processor, configured to read a tangible computer-readable medium having stored thereon instructions that when read by a processor enable the processor to execute said method, control NMR Field Cycling apparatus elements to execute automatic experimental measurements and display experimental results.