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Updated: Nov 22, 2025

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples
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Mobile low field magnetic resonance hardware development.

John Zhen1, Cameron Dykstra1, Gideon Gouws2

  • 1Resonint Limited, 32 Salamanca Road, Wellington, New Zealand.

Journal of Magnetic Resonance (San Diego, Calif. : 1997)
|January 11, 2021
PubMed
Summary

Compact Nuclear Magnetic Resonance (NMR) systems are now feasible for mobile, non-invasive industrial and medical applications. Advances in computing, electronics, and magnets enable portable NMR for molecular-level material analysis.

Keywords:
AmplifierClass DDigital ReceiverFPGAMobile NMRNon-Destructive TestingPermanent magnetsSpectrometerUnilateral magnetUser Interface

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Area of Science:

  • Analytical Chemistry
  • Spectroscopy
  • Materials Science

Background:

  • Traditional Nuclear Magnetic Resonance (NMR) systems are large, expensive, and confined to laboratory settings.
  • The complexity of NMR phenomena and technical integration challenges have limited its portability.
  • A lack of compact and mobile NMR solutions has hindered broader application.

Purpose of the Study:

  • To describe the development of compact electronic spectrometers and handheld sensors for mobile NMR solutions.
  • To highlight the enabling role of advances in computing, electronics, and permanent magnet technologies.
  • To position mobile NMR as a viable tool for industrial and medical applications.

Main Methods:

  • Development of compact electronic spectrometers.
  • Integration of spectrometers with handheld NMR sensors.
  • Leveraging modern advances in computing, electronics, and permanent magnet technologies.

Main Results:

  • Successful development of complete mobile NMR systems.
  • Demonstration of mobile NMR as a feasible non-invasive analytical tool.
  • NMR's capability to probe molecular structure, organization, abundance, and orientation for material testing.

Conclusions:

  • Mobile NMR is now a practical reality, expanding its reach beyond the laboratory.
  • The technology is suitable for non-destructive testing in diverse industrial and manufacturing processes.
  • Collaborative efforts across disciplines are crucial for accelerating the ubiquity of NMR technology.