高稳定度磁场稳流源综述

Review of the High Stable Constant Current Source for Magnetic Field

针对传统高稳定度磁场稳流源的设计原理、基本性能指标、基本构成以及使用的关键部件,包括基准电压、采样电阻、误差放大器和调整管进行了详细的归纳总结,指出了传统方案中存在的优缺点。最后,根据现阶段能量天平磁场系统稳流源的技术指标提出了一种新型的稳流源设计方案。

In this paper,the design principle,basic performance indexes,fundamental structure as well as the key parts used including voltage reference,sample resistor,error amplifier and regulator of the traditional high stable constant current source for magnetic field are detailed concluded and summarized,and the advantages and disadvantages have been indicated.According to the technical indexes of the constant current source for magnetic field system of the Joule Balance at present stage,a new design scheme has been put forward ultimately.