Chinese Journal of Magnetic Resonance ›› 2000, Vol. 17 ›› Issue (6): 483-487.

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APPLICATION OF THE FOUR DDS DEVICES RUNNING IN PARALLEL TO NMR

JIANG Yu1, SHEN Jian-hua1,2, JIANG Yun1, LI Geng-ying1   

  1. 1. Key Laboratory for Optical and Magnetic Resonance Spectroscopy, East China Normal University Department of Physics;
    2. Computer Department, East China Normal University, Shanghai 200062
  • Received:2000-10-16 Published:2000-12-05 Online:2018-01-11

Abstract: Frequency synthesizer is an important part in Nuclear Magnetic Resonance (NMR). With rapid development of micro-electronics technology, Direct Digital Synthesizer (DDS) becomes possible. Application of DDS to NMR spectroscopy has been successful, but it is generally limited to low frequency range. In order to solve the difficulty, we studied and designed a frequency synthesizer, which involves multiple DDS chips running in parallel.

Key words: DDS, Parallel operation, NMR

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