EQUIPMENT FOR SELECTIVE EXCITATION IN NMR-SPECTROSCOPY - ENHANCED TECHNIQUES FOR RADIOFREQUENCY MODULATION AND DIGITAL PULSE-SHAPE GENERATION

This paper describes readily constructed electronic equipment for generating shaped pulses for use in nuclear magnetic resonance spectroscopy. A radio-frequency modulator is controlled by the analogue waveshape supplied by a digital waveform generator. The modulator makes use of a double-balanced mi...

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Main Authors: Gregory, N, Claridge, T, Derome, A
Format: Journal article
Published: 1994
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author Gregory, N
Claridge, T
Derome, A
author_facet Gregory, N
Claridge, T
Derome, A
author_sort Gregory, N
collection OXFORD
description This paper describes readily constructed electronic equipment for generating shaped pulses for use in nuclear magnetic resonance spectroscopy. A radio-frequency modulator is controlled by the analogue waveshape supplied by a digital waveform generator. The modulator makes use of a double-balanced mixer in a circuit, which extends its linear range. Both the modulator and the digital section embody enhancements over conventional techniques. The equipment was designed to be integrated into Bruker spectrometers controlled by ASPECT computers; modification to accept data from other machines should not involve major changes. The analogue output of the waveform generator could also be used to control field gradient pulse shapes.
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publishDate 1994
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spelling oxford-uuid:bc0a54b4-acca-496d-9806-0aedcd52a35c2022-03-27T05:21:27ZEQUIPMENT FOR SELECTIVE EXCITATION IN NMR-SPECTROSCOPY - ENHANCED TECHNIQUES FOR RADIOFREQUENCY MODULATION AND DIGITAL PULSE-SHAPE GENERATIONJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:bc0a54b4-acca-496d-9806-0aedcd52a35cSymplectic Elements at Oxford1994Gregory, NClaridge, TDerome, AThis paper describes readily constructed electronic equipment for generating shaped pulses for use in nuclear magnetic resonance spectroscopy. A radio-frequency modulator is controlled by the analogue waveshape supplied by a digital waveform generator. The modulator makes use of a double-balanced mixer in a circuit, which extends its linear range. Both the modulator and the digital section embody enhancements over conventional techniques. The equipment was designed to be integrated into Bruker spectrometers controlled by ASPECT computers; modification to accept data from other machines should not involve major changes. The analogue output of the waveform generator could also be used to control field gradient pulse shapes.
spellingShingle Gregory, N
Claridge, T
Derome, A
EQUIPMENT FOR SELECTIVE EXCITATION IN NMR-SPECTROSCOPY - ENHANCED TECHNIQUES FOR RADIOFREQUENCY MODULATION AND DIGITAL PULSE-SHAPE GENERATION
title EQUIPMENT FOR SELECTIVE EXCITATION IN NMR-SPECTROSCOPY - ENHANCED TECHNIQUES FOR RADIOFREQUENCY MODULATION AND DIGITAL PULSE-SHAPE GENERATION
title_full EQUIPMENT FOR SELECTIVE EXCITATION IN NMR-SPECTROSCOPY - ENHANCED TECHNIQUES FOR RADIOFREQUENCY MODULATION AND DIGITAL PULSE-SHAPE GENERATION
title_fullStr EQUIPMENT FOR SELECTIVE EXCITATION IN NMR-SPECTROSCOPY - ENHANCED TECHNIQUES FOR RADIOFREQUENCY MODULATION AND DIGITAL PULSE-SHAPE GENERATION
title_full_unstemmed EQUIPMENT FOR SELECTIVE EXCITATION IN NMR-SPECTROSCOPY - ENHANCED TECHNIQUES FOR RADIOFREQUENCY MODULATION AND DIGITAL PULSE-SHAPE GENERATION
title_short EQUIPMENT FOR SELECTIVE EXCITATION IN NMR-SPECTROSCOPY - ENHANCED TECHNIQUES FOR RADIOFREQUENCY MODULATION AND DIGITAL PULSE-SHAPE GENERATION
title_sort equipment for selective excitation in nmr spectroscopy enhanced techniques for radiofrequency modulation and digital pulse shape generation
work_keys_str_mv AT gregoryn equipmentforselectiveexcitationinnmrspectroscopyenhancedtechniquesforradiofrequencymodulationanddigitalpulseshapegeneration
AT claridget equipmentforselectiveexcitationinnmrspectroscopyenhancedtechniquesforradiofrequencymodulationanddigitalpulseshapegeneration
AT deromea equipmentforselectiveexcitationinnmrspectroscopyenhancedtechniquesforradiofrequencymodulationanddigitalpulseshapegeneration