现代科学仪器Issue(3)：53-56,4.
一种基于磁调制式电流比较仪的超导线接头电阻测试装置
Testing System for Superconducting Joint Resistance Based on Magnetic Modulation Current Comparator
冯维宇 1程军胜 2陈顺中 1雷沅忠 1王晖 1黄礼凯1
作者信息
- 1. 中国科学院电工研究所,北京100190
- 2. 中国科学院研究生院,北京100190
- 折叠
摘要
Abstract
A testing system for superconducting joint resistance based on current decay method is developed. A magnetic modulation current comparator was used to measure the current decay in a loop containing the superconducting joint. The current decay was then used to calculate the resistance. The magnetic modulation current comparator is a feedback system containing a magnetic modulation apparatus and a controlling circuit. The performance of the current comparator was tested. The resolution of the current comparator is lower than 1mA and the zero drift is lower than 0.2mA. A superconducting joint sample is tested at last, and its resistance is lower than 3xlO'14 Ohm.关键词
超导线接头/电流衰减法/磁调制/电流比较仪Key words
Superconducting joint/ Current decay method/ Magnetic modulation/ Current comparator分类
信息技术与安全科学引用本文复制引用
冯维宇,程军胜,陈顺中,雷沅忠,王晖,黄礼凯..一种基于磁调制式电流比较仪的超导线接头电阻测试装置[J].现代科学仪器,2011,(3):53-56,4.
