Electricity: measuring and testing – Particle precession resonance
Patent
1996-12-10
1998-05-26
Arana, Louis M.
Electricity: measuring and testing
Particle precession resonance
324306, G01V 300
Patent
active
057571856
ABSTRACT:
A method of nuclear magnetic resonance (NMR) spectroscopy subjects a sample located in a homogeneous external magnetic field to a sequence of two radio frequency (RF) pulses whose strength and duration are chosen to produce an NMR signal, wherein a time and spatially variable magnetic gradient field GF is applied in a time interval between the first RF impulse exciting the NMR signal and read-out of the signal, and an electric field is applied during the excitation sequence. The magnetic gradient field GF is chosen to cause a velocity-dependent change in the phase and/or amplitude of the signals from spins moved in the direction of the magnetic gradient field GF by the electric field and changes in the signal phase and/or signal amplitude of the NMR signal due to the electric field induced motion of spins in charged, polar, or polarizable molecules along the magnetic gradient field are subsequently observed. The method allows for the observation of transport processes of ions and molecules analogous to conventional processes of electrochemistry.
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Arana Louis M.
Vincent Paul J.
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