Connection for recording nuclear magnetic resonance spectrum with Fourier transformation

Connection is proposed for sensing signals of free precession drop in nuclear magnetic resonance pulsed spectrometers with Fourier transformation. The equipment in this connection consists of a generator whose first output is connected via a key power amplifier to a probe. The probe output is connected via a second amplifier to the signal input of a synchronous detector. The reference input of the synchronous detector is connected to a second generator output. An i-f amplifier and a mixer connected to a third generator output are inserted between the second amplifier and the detector. (M.S.)