In studies of the transport in porous materials it is very important to measure concentration profiles. Nuclear Magnetic Resonance (NMR) is a powerful technique to measure the time evolution of e.g. moisture profiles with a high spatial resolution. However, many technological porous materials contain large amounts of paramagnetic ions, which complicates the NMR measurements. Therefore the moisture transport is studied using specially developed NMR scanners.


      
 
     
 
               

         
 


      

  




   Digital NMR: A new digital NMR is available which is controlled from Matlab