本文介绍作者在法国原子能委员会萨克莱核研究中心(CEN-SACLAY)进行的10特5厘米有效冷口径,用于核磁共振研究的超导磁体的研制和实验工作。该磁体为具有两个补偿线圈的Nb_3Sn、NbTi混合螺管的高精度磁体。作者用多种计算机程序,对磁体参数、磁体应力和磁体保护进行了较为详尽的计算分析。由于采用了萨克莱超导磁体组研制Nb_3Sn磁体的典型工艺和成功经验,经过实验,磁体达到设计值。 This article describes the development and experimental work of the superconducting magnet for nuclear magnetic resonance at 10 special 5 cm effective cold caliber at CEN-SACLAY, the French Atomic Energy Commission. The magnet is a high-precision magnet with two Nb 3 Sn and NbTi mixing coils with compensation coils. Using a variety of computer programs, the authors performed a more detailed calculation and analysis of magnet parameters, magnet stress and magnet protection. Due to the typical technology and successful experience of developing Nb_3Sn magnets from the Sackley superconducting magnet group, the magnet reaches the design value through experiments.