磁铁是核磁共振装置不可缺少的一部分。近几年来,由于采用超导磁铁取代永久磁铁和电磁铁,能获得很高的分辨率,并且超导磁铁的强磁场,还具有高度稳定的优点。所以,核磁共振被广泛应用于生物化学、生物学和医学,也开始应用于临床医学。日本电子技术综合研究所充分利用这些优 Magnets are an indispensable part of a nuclear magnetic resonance device. In recent years, due to the use of superconducting magnets instead of permanent magnets and electromagnets, high resolution can be obtained, and the strong magnetic field of superconducting magnets also has the advantage of being highly stable. Therefore, NMR is widely used in biochemistry, biology and medicine, also began to be used in clinical medicine. Japan Electronics Technology Research Institute to make full use of these advantages