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Unread 09-30-2013, 03:48 PM
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Default Low-Field Permanent Magnets for Industrial Process and Quality Control

Low-Field Permanent Magnets for Industrial Process and Quality Control


Publication date: Available online 30 September 2013
Source:Progress in Nuclear Magnetic Resonance Spectroscopy

Author(s): J. Mitchell , L.F. Gladden , T.C. Chandrasekera , E.J. Fordham

In this review we focus on the technology associated with lowfield NMR. We present the current state-of-the-art in low-field NMR hardware and experiments, considering general magnet designs, rf performance, data processing and interpretation. We provide guidance on obtaining the optimum results from these instruments, along with an introduction for those new to low-field NMR. The applications of lowfield NMR are now many and diverse. Furthermore, niche applications have spawned unique magnet designs to accommodate the extremes of operating environment or sample geometry. Trying to capture all the applications, methods, and hardware encompassed by low-field NMR would be a daunting task and likely of little interest to researchers or industrialists working in specific subject areas. Instead we discuss only a few applications to highlight uses of the hardware and experiments in an industrial environment. For details on more particular methods and applications, we provide citations to specialized review articles.
Graphical abstract

Highlights

• We review low-field NMR technology for industrial process monitoring. • Designs for bench-top and portable magnets are considered. • Radio frequency performance and system optimization are discussed. • We review experimental techniques, data acquisition, and interpretation. • Example applications are given for food, construction, and petroleum industries.






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