NMR frequency to magnetic field converter circuit with digital readout
Kam Chiu Tam, Alaa Alani, Ellen J. Cohen · Journal of Physics E Scientific Instruments · 1987
Describes the design of a simple circuit which gives a direct reading of the magnetic field by converting the frequency of an NMR magnetometer. The circuit uses n-bit BCD programmable frequency dividers to perform the conversion to a high degree of precision.