采用反馈控制方法产生平顶脉冲磁场。
Generation of flat-top pulsed magnetic fields with feedback control approach.
作者信息
Kohama Yoshimitsu, Kindo Koichi
机构信息
The Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa 277-8581, Japan.
出版信息
Rev Sci Instrum. 2015 Oct;86(10):104701. doi: 10.1063/1.4931689.
We describe the construction of a simple, compact, and cost-effective feedback system that produces flat-top field profiles in pulsed magnetic fields. This system is designed for use in conjunction with a typical capacitor-bank driven pulsed magnet and was tested using a 60-T pulsed magnet. With the developed feedback controller, we have demonstrated flat-top magnetic fields as high as 60.64 T with an excellent field stability of ±0.005 T. The result indicates that the flat-top pulsed magnetic field produced features high field stability and an accessible field strength. These features make this system useful for improving the resolution of data with signal averaging.
我们描述了一种简单、紧凑且经济高效的反馈系统的构建，该系统可在脉冲磁场中产生平顶场分布。该系统设计用于与典型的电容器组驱动脉冲磁体配合使用，并使用60-T脉冲磁体进行了测试。借助开发的反馈控制器，我们展示了高达60.64 T的平顶磁场，其场稳定性极佳，为±0.005 T。结果表明，所产生的平顶脉冲磁场具有高场稳定性和可达到的场强。这些特性使该系统有助于通过信号平均提高数据分辨率。
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