Magnetic Shielding Effectiveness of Current Comparator

作者：Shao Haiming^*; Qu Kaifeng; Lin Feipeng; Liang Bo; Jia Kai; Ren Qiang; Li Yanqiang; Li Wenfeng

来源：IEEE Transactions on Instrumentation and Measurement, 2013, 62(6): 1486-1490.

DOI：10.1109/TIM.2012.2228751

• Current comparator
• finite-element method (FEM)
• magnetic shielding
• measurement
• measurement standards
• measurement uncertainty
• precision measurements

This paper describes the calculation of the magnetic shielding effectiveness in current comparators, considering the air gap which is inevitable for the magnetic shielding. The method was verified to be accurate and effective by finite-element method analysis. Experiments were implemented to investigate the effect of the air gap as well.

• 出版日期2013-6
• 单位北京航空航天大学; 中国计量科学研究院; 清华大学