描述了一种原创的紧凑型电子自旋共振(ESR)仪.该仪器具备高性能、低成本、简单可靠、结构紧凑、开放构架、多功能模块等一系列特点.分析了ESR谱仪的多个微波单位,研发并通过实验验证了自差ESR谱仪的最优双腔结构,并设计了一种可提供高均匀磁场的电、永磁混合磁体.最后介绍了这种新型紧凑型电子自旋共振仪的主要参数和应用. Described is an original compact electronic spin resonance (ESR) instrument with a series of features of high performance, low cost, simple and reliable, compact structure, open frame, multi-function module, etc. A microwave unit was developed and tested to verify the optimal dual-cavity structure of the self-destructive ESR spectrometer and to design an electric and permanent magnet hybrid magnet that can provide a high uniform magnetic field.Finally, the new compact electronic The main parameters and applications of spintrometer.