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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Format: | Journal article |
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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. |
first_indexed | 2024-03-07T03:35:09Z |
format | Journal article |
id | oxford-uuid:bc0a54b4-acca-496d-9806-0aedcd52a35c |
institution | University of Oxford |
last_indexed | 2024-03-07T03:35:09Z |
publishDate | 1994 |
record_format | dspace |
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 |