In this review we focus on the technology associated with low-field 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.

中文翻译：

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用于工业过程和质量控制的低场永磁体

在这篇综述中，我们关注与低场核磁共振相关的技术。我们介绍了当前低场 NMR 硬件和实验的最新技术，同时考虑了通用磁铁设计、射频性能、数据处理和解释。我们提供有关从这些仪器获得最佳结果的指导，以及对低场 NMR 新手的介绍。低场核磁共振的应用现在多种多样。此外，利基应用催生了独特的磁铁设计，以适应极端的操作环境或样品几何形状。试图捕获低场 NMR 所包含的所有应用、方法和硬件将是一项艰巨的任务，并且可能对在特定学科领域工作的研究人员或工业家几乎没有兴趣。相反，我们只讨论几个应用程序来突出硬件和实验在工业环境中的使用。有关更具体的方法和应用的详细信息，我们提供了对专业评论文章的引用。