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一、前言人类的现代物质文明是和磁现象息息相关的,没有磁就不可能有电,也就不可能有现在高度发展的科学技术。磁测仪器就是用来测量磁场大小与分布及磁性材料的诸如Br、Hc、μ、M、x……等特性或参数的。磁性材料在国民经济及现代科学技术的各个领域里已成为必不可少的重要材料,例如用于发电机、变压器、高能加速器及各种仪器仪表及电器等;对磁场性质的研究则是固体物理、半导体物理、高能物理及地球物理等基础科学进行研究的重要手
I. Introduction The modern material civilization of mankind is closely related to the magnetic phenomenon. Without magnetism, it is impossible to have electricity. It is impossible to have highly developed science and technology now. Magnetic instrumentation is used to measure the magnetic field size and distribution and magnetic materials such as Br, Hc, μ, M, x ...... and other characteristics or parameters. Magnetic materials in the national economy and modern science and technology in all fields has become an indispensable important material, such as for generators, transformers, high-energy accelerators and various instruments and electrical appliances; the nature of the magnetic field is the study of solid state physics , Semiconductor physics, high energy physics and geophysics and other basic science research important hand