合肥光源新的直流流强检测系统的研制

Development of New DCCT System for Hefei Light Source

介绍了合肥光源新的直流流强检测系统的组成 ,包括PCT系统 (PCT探头和电子学线路 )、DCCT真空室及其屏蔽系统以及DCCT数据获取系统 .屏蔽系统可以将由杂散场影响所产生的DCCT零漂从 1mA降至 10 μA以下 .最后 ,给出了DCCT数据获取系统的软硬件设计 .新的DCCT系统的分辨率为 1μArms ,精度可达 0 .1% .

The new DCCT measurement system is developed for Hefei Light Source (HLS). The system is composed a PCT system, a DCCT shielding system and a DCCT data acquisition system. The magnetic shielding against stray fields suppressed zero drifts of DCCT from 1mA to 10μA. In new DCCT measurement system, the resolution is about 1μA rms, the accuracy is about 0.1%.