摘要
超低纹波检测是超低纹波电源研制的重要条件,新型质子医疗加速器装置对其励磁电源的输出电流纹波提出了<10–6的性能指标要求。本文以数字化电源控制器为基础,提出了一种超低纹波电流检测方法,设计搭建了一个超低纹波检测系统,并进行了比对验证,最后利用此系统对典型的加速器磁铁电源进行了实际测试。测试和比对数据表明,此检测系统能够用于10–6数量级纹波电流的检测。
Background： The magnets exciting current ripple is required to be less than 10^-6 for the proton medical accelerator under construction. Purpose： In order to observe the ultra-low current ripple, we design and set up a testing platform based on the ADC card used for digitalized power supplies. Methods： The system performance is analyzed, tested, and the observation is compared with the oscilloscope measurement. Results： Using this platform, the ultra-low current ripples are observed on several magnet power supplies. Conclusions： The method is experimentally proved suitable for the observation of current ripples of 10^-6 versus hundreds DC current.
出处
《核技术》
CAS
CSCD
北大核心
2013年第2期63-66,共4页
Nuclear Techniques
