NMR SPECTROSCOPY SYSTEM
The subject of the invention is an NMR spectroscopy system (100) for studying at least one region (202) of a sample (102) to be analysed, comprising: a magnetoresistive transducer (101) made up of superposed planar layers, which receives a response signal of the said sample; means suitable for makin...
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Format | Patent |
Language | English French |
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08.09.2017
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Abstract | The subject of the invention is an NMR spectroscopy system (100) for studying at least one region (202) of a sample (102) to be analysed, comprising: a magnetoresistive transducer (101) made up of superposed planar layers, which receives a response signal of the said sample; means suitable for making an AC current flow, at a supply frequency fc, through said transducer (101); means for generating a magnetic field H0 that is constant and uniform throughout a zone of interest in which the sample (102) and the transducer (101) are placed; and an exciting coil (103) that is configured 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 (101). The system furthermore includes regulating means in order to ensure the field H0 and the planar layers remain orthogonal, and means for detecting a signal of frequency fc - f1, f1 - fc or fc + f1.
L'invention a pour objet un système (100) de spectroscopie RMN pour l'étude d'au moins une région (202) d'un échantillon (102) à analyser comprenant : * un transducteur (101) magnetorésistif à couches planaires superposées recevant un signal de réponse dudit échantillon; * des moyens adaptés pour faire circuler à travers ledit transducteur (101) un courant alternatif à une fréquence d'alimentation fc; * des moyens de génération d'un champ magnétique H0 constant et uniforme dans toute une zone d'intérêt où sont placés l'échantillon (102) et le transducteur (101); * une bobine d'excitation (103) configurée pour générer un champ magnétique H1 uniforme dans toute la zone d'intérêt variable à une fréquence de résonance f1; Le champ H0 est sensiblement perpendiculaire aux couches du transducteur (101). Le système comporte en outre des moyens de réglage pour assurer l'orthogonalité entre le champ H0 et les couches planaires et des moyens de détection d'un signal à fréquence fc - f1, f1 - fc ou fc + f1. |
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AbstractList | The subject of the invention is an NMR spectroscopy system (100) for studying at least one region (202) of a sample (102) to be analysed, comprising: a magnetoresistive transducer (101) made up of superposed planar layers, which receives a response signal of the said sample; means suitable for making an AC current flow, at a supply frequency fc, through said transducer (101); means for generating a magnetic field H0 that is constant and uniform throughout a zone of interest in which the sample (102) and the transducer (101) are placed; and an exciting coil (103) that is configured 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 (101). The system furthermore includes regulating means in order to ensure the field H0 and the planar layers remain orthogonal, and means for detecting a signal of frequency fc - f1, f1 - fc or fc + f1.
L'invention a pour objet un système (100) de spectroscopie RMN pour l'étude d'au moins une région (202) d'un échantillon (102) à analyser comprenant : * un transducteur (101) magnetorésistif à couches planaires superposées recevant un signal de réponse dudit échantillon; * des moyens adaptés pour faire circuler à travers ledit transducteur (101) un courant alternatif à une fréquence d'alimentation fc; * des moyens de génération d'un champ magnétique H0 constant et uniforme dans toute une zone d'intérêt où sont placés l'échantillon (102) et le transducteur (101); * une bobine d'excitation (103) configurée pour générer un champ magnétique H1 uniforme dans toute la zone d'intérêt variable à une fréquence de résonance f1; Le champ H0 est sensiblement perpendiculaire aux couches du transducteur (101). Le système comporte en outre des moyens de réglage pour assurer l'orthogonalité entre le champ H0 et les couches planaires et des moyens de détection d'un signal à fréquence fc - f1, f1 - fc ou fc + f1. |
Author | FERMON, Claude PANNETIER-LECOEUR, Myriam GUITARD, Pierre-André JASMIN-LEBRAS, Guénaëlle |
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DocumentTitleAlternate | SYSTEME DE SPECTROSCOPIE RMN |
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Snippet | The subject of the invention is an NMR spectroscopy system (100) for studying at least one region (202) of a sample (102) to be analysed, comprising: a... |
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Title | NMR SPECTROSCOPY SYSTEM |
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