Superheterodyne NMR spectrometer
Hetero means “other” Example: A radio station is transmitting on 300 kHz and the oscillating receiver was set to 400 kHz, the station would be heard not only at the original 300 kHz, but also at 100 kHz and 700 kHz.
Labview controller - YB
probe section
cap and coil selection
coil – large L
impedance matching
Impedance matching – circuit A
isolation – hybrid tee
isolation – quarter waves
RF amplifier stage – miteq fast recovery
receiver section
generator and receiver – side by side
IF (audio) amplifier stage – LM386
DAQ - YB
external Circuits/blob/master/matching-A-min Circuits/blob/master/matching-A-min