1. Use high-energy electron beam to bombard the sample to create some defects.
2. Install the sample between the two electron coils.
3. Tune the generator to emit radiation of a fixed approprriate frequency and excite the sample.
4. By scanning the magnetic field, the two resonant peaks can be found.
5. Deduce the g factor from the peak.
6. By changing the orientation of the field wrt the sample orientation, the g components as a function of the orientation can be found and plotted.