NMR spectroscopy system

• Main Authors: Pannetier-Lecoeur, Myriam, Guitard, Pierre-André, Jasmin-Lebras, Guénaëlle, Fermon, Claude
• Format: Patent
• Language: English
• Published: 02.02.2021
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

An NMR spectroscopy system for studying a region of a sample to be analysed, includes a magnetoresistive transducer made up of superposed planar layers, which receives a response signal of the sample; a system for making an AC current flow, at a supply frequency fc, through the transducer; a system for generating a magnetic field H0 that is constant and uniform throughout a zone of interest in which the sample and transducer are placed; and an exciting coil to generate a magnetic field H1 that is uniform throughout the zone of interest and that varies at a resonant frequency f1; the field H0 is substantially perpendicular to the layers of the transducer. The system further includes a regulating system to ensure that the field H0 and the planar layers remain orthogonal, and a system for detecting a signal of frequency fc−f1, f1−fc or fc+f1.