摘要
介绍了东方超环(EAST)磁约束聚变实验装置中辐射量热诊断系统的屏蔽接地措施,并对整个系统的接地方案进行了研究。通过采用封闭的屏蔽支撑盒、双屏蔽传输电缆、串并混合单点接地等措施,有效避免了多道之间的共振和地回路,保证了测量系统在复杂电磁环境下的正常工作。
The Bolometer diagnostic system at the superconducting Tokamak EAST is introduced briefly . The shielding and grounding method of Bolometer diagnostic system is studied. Measures of shielded cabinet, low noise double- shielding cables and single point grounding are adopted to insure the long distance transmission of weak voltage signals in complex electromagnetic environment. The method can avoid grounding loop and reso- nance among the 4 - channel model. The testing result shows that it can protect effectively weak signal from e-lectromagnetic interference.
出处
《核电子学与探测技术》
CAS
北大核心
2015年第1期21-25,共5页
Nuclear Electronics & Detection Technology
基金
国家自然科学基金(11261140328
11305214)资助
关键词
EAST
电磁干扰
辐射量热诊断系统
屏蔽接地
EAST
bolometer diagnostic system
electromagnetic environment
shielding and grounding
