Compact nuclear magnetic spectrometer for non-destructive condition testing of biological objects

Paper discusses the express control technique based on the phenomenon of nuclear magnetic resonance (NMR). For a small-sized NMR spectrometer, a new magnetic system and a signal registration circuit have been developed, which makes it possible to detect the NMR signal at different frequencies from different nuclei in biological media, thus registering the spectrum of this media. In addition, this design also allows measuring the longitudinal and transverse relaxation times of the medium. With the help of the proposed technique, studies of a media have been carried out; the results of these studies are presented. (paper)