The designed yoke is not yet complete, but since the magnet is available, we attempted to acquire spin-echo signals.The system was wrapped in aluminum foil for noise reduction.Although a little noisy, we were able to obtain the NMR signal of water in a small bottle.

In addition, a miniature MRI gradient coil was designed using the target field method in MATLAB.

The contour lines are the wires of the coil.

Edit the contour lines calculated in MATLAB and convert them to data for the Kicad pattern, and you are done.Gradient coils are installed this way.